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Hardware  » The video card you should buy today:

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60 posts found
  Quizzical

Guide

Joined: 12/11/08
Posts: 13597

 
OP  5/27/12 2:02:45 PM#21
Originally posted by Gaia_Hunter

 


Originally posted by Quizzical

Originally posted by jdeats On a budget: f you can track one down on-line (and they are still pretty easy to find), the Radeon 6850 HD is the best value you can get....  7770 passmark score a respectible 2012 (you can run pretty much any game on mid-settings at 1080p some on max). However for about $150 USD you can order a Radeon 6850 HD and get 1/3 more horsepower (2748 passmark). 6850 HD can run Crysis 2 at 60fps max settings at 1080p without braking a sweat (you can go to higher resolutions than that). It will run Guild Wars 2, Rift, whatever max settings no problem.  The difference in the 7770 and the 6850 are both retailing for about $150. Both cards fully support Directx 11. The 6850 scored 700 points (30%) faster on passmark. On a budget I would try to track down a 6850.  
What are you going to do with the card?  If all you're going to do is sit and run synthetic benchmarks all day, that's strange.  If you're planning on playing real games with the card, then why do you care how well it performs in synthetic benchmarks?  A 6850 was maybe a little faster than a 7770 at launch, but I'd expect that gap to roughly vanish with driver updates, once AMD figures out how to squeeze the best performance out of their new GCN architecture.  The 7770 might plausibly have already caught up. And then the 7770 also uses a lot less power than the 6850, and has a better feature set.  Most notably, PowerTune means that you can overclock it and it will be pretty safe--because if the overclock is unsafe, then PowerTune will kick in and force clock speeds back down.
It is going to be hard for that to happen.

 

The 7770 is much lower specs than a 6850 :

640 SPs vs 960 SPs
40 TMUs vs 48 TMUs
16 ROPs vs 32 ROPs
128 bit bus vs 256 bit bus, which gives a 72 GB/s vs 128 GB/s in the memory bandwidth department.

The only thing keeping the 7770 in the game vs a 6850 is the higher clocks - 1000 MHz vs 775 MHz for the core and 1125MHz (4500 MHz effective) vs 1000 MHz (4000 MHz effective) for the memory.

You can overclock a 6800 series very safely at stock volts - power tune is just something to keep TDP in check.

And while the 7770 power consumption is smaller, the 6850 is already a very "green" card.

Not all shaders are the same.  GCN shaders are a lot more powerful than VLIW5 shaders.  That's why a 1280 shader Radeon HD 7870 dramatically outperforms a 1600 shader Radeon HD 5870 at just about everything.

Or to take a more dramatic comparison, a 512 shader GeForce GTX 580 will offer around triple the performance of a 720 shader Radeon HD 5750.

For TMUs, the difference in clock speed alone is enough to mean a 7770 has more texture power than a 6850.

The 6850 probably has more pixel power (though AMD did make some changes to ROPs that they say makes them a lot more powerful), and definitely has more memory bandwidth than the 7770.  But it's not just how much bandwidth you have; it's what you do with it.

  jdeats

Apprentice Member

Joined: 5/27/12
Posts: 5

5/27/12 2:04:30 PM#22
Originally posted by Quizzical
 

 

What are you going to do with the card?  If all you're going to do is sit and run synthetic benchmarks all day, that's strange.  If you're planning on playing real games with the card, then why do you care how well it performs in synthetic benchmarks?  A 6850 was maybe a little faster than a 7770 at launch, but I'd expect that gap to roughly vanish with driver updates, once AMD figures out how to squeeze the best performance out of their new GCN architecture.  The 7770 might plausibly have already caught up.

And then the 7770 also uses a lot less power than the 6850, and has a better feature set.  Most notably, PowerTune means that you can overclock it and it will be pretty safe--because if the overclock is unsafe, then PowerTune will kick in and force clock speeds back down.

The power consumption differences I am very interested in. How much less power does the 7770 use? Please provide source. I'm having a hard time tracking this information down, all I can find is information on the box. I orginally said 7770 only wants a 400w power supply, but where I can find it listed it seems they both want a 450w psu minimum. 

When you say the 7770 has a "better feature set" please elaborate a bit more. Is PowerTune unavailble for the 6850?

Since both cards fully support DirectX 11 in terms of supported effects a player would experinece in game (shader, et al) there should be no difference in the two except for performance, but if the 7770 runs on less power (again, want details not generalities) and can be brought up to the same level of performance. I have a hard time beliving drivers are going to gain you 30% difference. Although passmark scores aren't perfect they do give a general metric to categories performance of video cards. I would like to see other bench marks for the 7770 and 6850. My goal in responding to this thread is to help readers find the best budget solution and now wave a flag saving I have the right answer, because I really don't know.

  Yalexy

Advanced Member

Joined: 12/17/10
Posts: 1039

5/27/12 2:09:11 PM#23

I don't know what this thread is about actually. For a matter of fact the best gaming-card (looking at cost vs. performance) is the GTX560ti, which is available for some +- €200.

It let's you play all current games at acceptable settings without stretching the budget. It's also quiet silent and cool and doesn't draw too much power.

Oh, and as we're still in the age of games being more optimized for nVidia-cards AMD isn't quiet as good actually.

  Gaia_Hunter

Elite Member

Joined: 5/04/12
Posts: 2628

5/27/12 2:19:40 PM#24
Originally posted by Quizzical
Originally posted by Gaia_Hunter

 


Originally posted by Quizzical

Originally posted by jdeats On a budget: f you can track one down on-line (and they are still pretty easy to find), the Radeon 6850 HD is the best value you can get....  7770 passmark score a respectible 2012 (you can run pretty much any game on mid-settings at 1080p some on max). However for about $150 USD you can order a Radeon 6850 HD and get 1/3 more horsepower (2748 passmark). 6850 HD can run Crysis 2 at 60fps max settings at 1080p without braking a sweat (you can go to higher resolutions than that). It will run Guild Wars 2, Rift, whatever max settings no problem.  The difference in the 7770 and the 6850 are both retailing for about $150. Both cards fully support Directx 11. The 6850 scored 700 points (30%) faster on passmark. On a budget I would try to track down a 6850.  
What are you going to do with the card?  If all you're going to do is sit and run synthetic benchmarks all day, that's strange.  If you're planning on playing real games with the card, then why do you care how well it performs in synthetic benchmarks?  A 6850 was maybe a little faster than a 7770 at launch, but I'd expect that gap to roughly vanish with driver updates, once AMD figures out how to squeeze the best performance out of their new GCN architecture.  The 7770 might plausibly have already caught up. And then the 7770 also uses a lot less power than the 6850, and has a better feature set.  Most notably, PowerTune means that you can overclock it and it will be pretty safe--because if the overclock is unsafe, then PowerTune will kick in and force clock speeds back down.
It is going to be hard for that to happen.

 

The 7770 is much lower specs than a 6850 :

640 SPs vs 960 SPs
40 TMUs vs 48 TMUs
16 ROPs vs 32 ROPs
128 bit bus vs 256 bit bus, which gives a 72 GB/s vs 128 GB/s in the memory bandwidth department.

The only thing keeping the 7770 in the game vs a 6850 is the higher clocks - 1000 MHz vs 775 MHz for the core and 1125MHz (4500 MHz effective) vs 1000 MHz (4000 MHz effective) for the memory.

You can overclock a 6800 series very safely at stock volts - power tune is just something to keep TDP in check.

And while the 7770 power consumption is smaller, the 6850 is already a very "green" card.

Not all shaders are the same.  GCN shaders are a lot more powerful than VLIW5 shaders.  That's why a 1280 shader Radeon HD 7870 dramatically outperforms a 1600 shader Radeon HD 5870 at just about everything.

Or to take a more dramatic comparison, a 512 shader GeForce GTX 580 will offer around triple the performance of a 720 shader Radeon HD 5750.

For TMUs, the difference in clock speed alone is enough to mean a 7770 has more texture power than a 6850.

The 6850 probably has more pixel power (though AMD did make some changes to ROPs that they say makes them a lot more powerful), and definitely has more memory bandwidth than the 7770.  But it's not just how much bandwidth you have; it's what you do with it.

GCN shaders are a lot more powerful than VLIW5 in DX11. In DX9 not so much.

So  one is going to get a few mixed results, with 7770 winning some and the 6850 winning others.

If buying today, I would go for a 6870 though.

Currently playing: GW2
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  Quizzical

Guide

Joined: 12/11/08
Posts: 13597

 
OP  5/27/12 2:25:57 PM#25
Originally posted by jdeats
Originally posted by Quizzical
 

 

What are you going to do with the card?  If all you're going to do is sit and run synthetic benchmarks all day, that's strange.  If you're planning on playing real games with the card, then why do you care how well it performs in synthetic benchmarks?  A 6850 was maybe a little faster than a 7770 at launch, but I'd expect that gap to roughly vanish with driver updates, once AMD figures out how to squeeze the best performance out of their new GCN architecture.  The 7770 might plausibly have already caught up.

And then the 7770 also uses a lot less power than the 6850, and has a better feature set.  Most notably, PowerTune means that you can overclock it and it will be pretty safe--because if the overclock is unsafe, then PowerTune will kick in and force clock speeds back down.

The power consumption differences I am very interested in. How much less power does the 7770 use? Please provide source. I'm having a hard time tracking this information down, all I can find is information on the box. I orginally said 7770 only wants a 400w power supply, but where I can find it listed it seems they both want a 450w psu minimum. 

When you say the 7770 has a "better feature set" please elaborate a bit more. Is PowerTune unavailble for the 6850?

Since both cards fully support DirectX 11 in terms of supported effects a player would experinece in game (shader, et al) there should be no difference in the two except for performance, but if the 7770 runs on less power (again, want details not generalities) and can be brought up to the same level of performance. I have a hard time beliving drivers are going to gain you 30% difference. Although passmark scores aren't perfect they do give a general metric to categories performance of video cards. I would like to see other bench marks for the 7770 and 6850. My goal in responding to this thread is to help readers find the best budget solution and now wave a flag saving I have the right answer, because I really don't know.

Die shrinks let you have transistors do the same thing as before while using less power.  A quick approximation is that in order to get one made-up unit of graphical performance, a card will need:

Radeon HD 7000 series:  1 W

Radeon HD 5000 or 6000 series:  1.4 W

Radeon HD 4000 series:  2 W

GeForce GTX 600 series (the GTX matters, as GT is Fermi rebrands):  1 W

GeForce 400 or 500 series:  1.7 W (same process node as Radeon HD 5000 and 6000 series, but a horrible, inefficient architecture)

GeForce 200 series, except for GTX 280 or older GTX 260:  2 W

----

PowerTune is available on the 7770 but not the 6850.  Radeon HD 7000 series cards also support DirectX 11.1, not just 11.  They have some improved Eyefinity functionality.  They also support larger monitor resolutions, for future monitors that aren't yet commercially available; by comparison, the 6850 only supports up to 2560x1600.  There might also be other stuff that doesn't come to mind off the top of my head.

-----

It's not a 30% difference.  Look at some launch day benchmarks:

http://www.techpowerup.com/reviews/AMD/HD_7770/26.html

They found that a 6850 is, on average, 4% faster than a 7770.  Could improved drivers make up that difference?  It's highly plausible.  Even overclocking both cards could make up that difference if you're restricted by the GPU more so than memory bandwidth.

  jdeats

Apprentice Member

Joined: 5/27/12
Posts: 5

5/27/12 5:51:54 PM#26

 

I've learned I really don't know all that much about video cards. This has been an interesting debate focuisng on the 7770 and 6850 HD. For those a bit more hardware savy.

This is my motherboard, it's a bit older mother board and changing it is not an option right now

http://www.ebay.com/itm/GATEWAY-GT5646E-GT5625E-GT5624E-GT5465E-MOTHERBOARD-NEW-/390288067544?pt=Motherboards&hash=item5adefb4bd8#ht_4363wt_1141

 

So given the motherboard would the 6850 or 7770 be a better choice? Does it make a difference at all?

 

  HorrorScope

Novice Member

Joined: 1/04/05
Posts: 612

5/27/12 8:12:10 PM#27

Why is a 7770 better then a 460?

  Ice-Queen

Hard Core Member

Joined: 1/02/08
Posts: 2438

"Always borrow money from a pessimist. They won't expect it back."

5/27/12 8:19:10 PM#28

What happens when you log off your characters????.....
http://www.youtube.com/watch?v=GFQhfhnjYMk
Dark Age of Camelot

  Quizzical

Guide

Joined: 12/11/08
Posts: 13597

 
OP  5/27/12 8:38:45 PM#29
Originally posted by HorrorScope

Why is a 7770 better then a 460?

The GeForce GTX 460s that you've seen reviews of are long gone, as those were discontinued more than a year ago.  The GeForce GTX 460s that you can buy today are a different card entirely, and weren't sent to reviewers, so we can only guess how they perform.

As compared to those GTX 460s, a Radeon HD 7770 is probably:

-faster

-cheaper

-uses far less power

-has a better feature set

The advantage of the GTX 460 is, well, there isn't one.

  Quizzical

Guide

Joined: 12/11/08
Posts: 13597

 
OP  5/27/12 8:43:31 PM#30
Originally posted by Tayah

Can get a 480GTX for $219.99 .... Imo, this is the best bang for your buck atm.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130759&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Video%20Cards-_-EVGA-_-14130759&AID=10440897&PID=3962334&SID=

If the only things you care about are purchase price and performance, then that will get you about the same performance per dollar as a Radeon HD 7770.  So it's certainly not far and away the best, but if that's your budget, then sure.

But reference GTX 480s also run notoriously hot and loud.  They pull obscene amounts of electricity, which is a problem if you're paying your own electrical bill.  Just to put this into perspective, if you hook up two monitors, the GTX 480 will use more power at idle than a Radeon HD 7770 does while heavily overclocked and running an artificial stress test.  Add a couple of dollars per month for electricity and it's no longer such a cheap card.

  Ice-Queen

Hard Core Member

Joined: 1/02/08
Posts: 2438

"Always borrow money from a pessimist. They won't expect it back."

5/27/12 8:46:16 PM#31
Originally posted by Quizzical
Originally posted by Tayah

Can get a 480GTX for $219.99 .... Imo, this is the best bang for your buck atm.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130759&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Video%20Cards-_-EVGA-_-14130759&AID=10440897&PID=3962334&SID=

If the only things you care about are purchase price and performance, then that will get you about the same performance per dollar as a Radeon HD 7770.  So it's certainly not far and away the best, but if that's your budget, then sure.

But reference GTX 480s also run notoriously hot and loud.  They pull obscene amounts of electricity, which is a problem if you're paying your own electrical bill.  Just to put this into perspective, if you hook up two monitors, the GTX 480 will use more power at idle than a Radeon HD 7770 does while heavily overclocked and running an artificial stress test.  Add a couple of dollars per month for electricity and it's no longer such a cheap card.

Aye, it does run very hot.

What happens when you log off your characters????.....
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  HorrorScope

Novice Member

Joined: 1/04/05
Posts: 612

5/28/12 4:58:52 PM#32
Originally posted by Quizzical
Originally posted by HorrorScope

Why is a 7770 better then a 460?

The GeForce GTX 460s that you've seen reviews of are long gone, as those were discontinued more than a year ago.  The GeForce GTX 460s that you can buy today are a different card entirely, and weren't sent to reviewers, so we can only guess how they perform.

As compared to those GTX 460s, a Radeon HD 7770 is probably:

-faster

-cheaper

-uses far less power

-has a better feature set

The advantage of the GTX 460 is, well, there isn't one.

 

Faster, nope. Close to even.

Cheaper, nope. $99 for a 460.

Less Power, true. However neither are hogs.

Better feature set, yes on paper.

Most would say advantage NVidia vs ATI when equal. Less compatibility issues.

 

Updated Review:

http://www.ultimatehardware.net/amd/msi_radeon_hd_7770_page5.htm

"making the MSI GeForce GTX 460 the winner."

 

Then there are these to digest:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130759&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Video%20Cards-_-EVGA-_-14130759&AID=10440897&PID=3962334&SID=

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130770

  Kalmarth

Advanced Member

Joined: 9/18/04
Posts: 458

5/28/12 5:03:59 PM#33

http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107.html

This is a link to Tomshardware they do a review and test each month of the graphics cards that are out and compare them, they have diffrent price ranges so you can compare best bang for your buck in diffrent catagorys of price, I love the site for tech info and testing off tons of parts.

Hope this help

  Fadedbomb

Spotlight Poster

Joined: 5/19/06
Posts: 2149

5/28/12 5:10:55 PM#34
Originally posted by Quizzical

There are really only two good values on desktop video cards today:

Radeon HD 7770 for $130

GeForce GTX 670 for $400

Yes, that's a huge chasm between the two, but nothing between them is a good value relative to those two cards.  I do expect that to change soon, however.  AMD has tons of Pitcairn chips to sell, and surely they want to sell something higher end than $130 cards.  A Radeon HD 7870 for $300 or a Radeon HD 7850 for $200 would be a good value, and should still be profitable for AMD.  I do expect to see the 7870 approach $300 soon.

Whether the 7850 falls so far depends largely on yields.  If 2/3 of Pitcairn chips can meet the 7870 specs, then the 7850 doesn't have to be that good of a value for AMD to sell off all that they need.  It is likely that this is essentially the reason why the 7750 isn't a good value:  too many Cape Verde dies can meet 7770 specs, so AMD would rather sell a 7770 for more.  If far more dies go in the 7850 bin than the 7870, then I'd expect to see the 7850 going for $200 sooner rather than later.

Nvidia will presumably shake things up with new cards, too.  But GK106 is still nowhere to be found, and GK107 is very much taking its time in coming to desktops.  GK107 will probably be quite a bit slower than a Radeon HD 7770, but could still be a compelling value at $100 if Nvidia prices it appropriately.

-----

Edit:  I meant to put this in the hardware section, not The Pub.  Sorry.  My mistake.

Normally I agree with most of the stuff you post, but the 7770 is a piece of crap. 

Just one of the sources I use for GPU stuff: Link

 

They tend to be fairly spot on.

The Theory of Conservative Conservation of Ignorant Stupidity:
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  ShakyMo

Apprentice Member

Joined: 11/21/11
Posts: 7246

5/28/12 5:15:20 PM#35
Op: 7770 is more expensive than the 6850 AND slower, 6850 is THE entry level gaming card (also quicker and cheaper than 550ti)

above that
560gtx
7850
7870
& 680gtx
are also good value

7870 being my pick of the bunch, its like $75 cheaper than 580gtx for simmilar spec
  Coman

Advanced Member

Joined: 8/29/04
Posts: 1956

5/28/12 5:21:42 PM#36
Originally posted by Fadedbomb
Originally posted by Quizzical

There are really only two good values on desktop video cards today:

Radeon HD 7770 for $130

GeForce GTX 670 for $400

Yes, that's a huge chasm between the two, but nothing between them is a good value relative to those two cards.  I do expect that to change soon, however.  AMD has tons of Pitcairn chips to sell, and surely they want to sell something higher end than $130 cards.  A Radeon HD 7870 for $300 or a Radeon HD 7850 for $200 would be a good value, and should still be profitable for AMD.  I do expect to see the 7870 approach $300 soon.

Whether the 7850 falls so far depends largely on yields.  If 2/3 of Pitcairn chips can meet the 7870 specs, then the 7850 doesn't have to be that good of a value for AMD to sell off all that they need.  It is likely that this is essentially the reason why the 7750 isn't a good value:  too many Cape Verde dies can meet 7770 specs, so AMD would rather sell a 7770 for more.  If far more dies go in the 7850 bin than the 7870, then I'd expect to see the 7850 going for $200 sooner rather than later.

Nvidia will presumably shake things up with new cards, too.  But GK106 is still nowhere to be found, and GK107 is very much taking its time in coming to desktops.  GK107 will probably be quite a bit slower than a Radeon HD 7770, but could still be a compelling value at $100 if Nvidia prices it appropriately.

-----

Edit:  I meant to put this in the hardware section, not The Pub.  Sorry.  My mistake.

Normally I agree with most of the stuff you post, but the 7770 is a piece of crap. 

Just one of the sources I use for GPU stuff: Link

 

They tend to be fairly spot on.

Well I do not dislike the card, but the card seems to be getting hot rather quickly. It has a hard time even in a game like Just Cause 2 and in ARMA2 it can reach up to 80C (I think it hit 82C once) and that is with an extra fan on the side of the panel blowing air in. Without it, the card would most likely reset itself all the time. 

Then again it is rather hot outside as well right now. So giving it the benifit of the doubt. Overall an ok card though for the price. 

  caremuchless

Apprentice Member

Joined: 3/19/11
Posts: 597

Whether you believe you can or believe you cannot, you are right.

5/28/12 5:39:37 PM#37
Originally posted by Coman
Originally posted by Fadedbomb
Originally posted by Quizzical

There are really only two good values on desktop video cards today:

Radeon HD 7770 for $130

GeForce GTX 670 for $400

Yes, that's a huge chasm between the two, but nothing between them is a good value relative to those two cards.  I do expect that to change soon, however.  AMD has tons of Pitcairn chips to sell, and surely they want to sell something higher end than $130 cards.  A Radeon HD 7870 for $300 or a Radeon HD 7850 for $200 would be a good value, and should still be profitable for AMD.  I do expect to see the 7870 approach $300 soon.

Whether the 7850 falls so far depends largely on yields.  If 2/3 of Pitcairn chips can meet the 7870 specs, then the 7850 doesn't have to be that good of a value for AMD to sell off all that they need.  It is likely that this is essentially the reason why the 7750 isn't a good value:  too many Cape Verde dies can meet 7770 specs, so AMD would rather sell a 7770 for more.  If far more dies go in the 7850 bin than the 7870, then I'd expect to see the 7850 going for $200 sooner rather than later.

Nvidia will presumably shake things up with new cards, too.  But GK106 is still nowhere to be found, and GK107 is very much taking its time in coming to desktops.  GK107 will probably be quite a bit slower than a Radeon HD 7770, but could still be a compelling value at $100 if Nvidia prices it appropriately.

-----

Edit:  I meant to put this in the hardware section, not The Pub.  Sorry.  My mistake.

Normally I agree with most of the stuff you post, but the 7770 is a piece of crap. 

Just one of the sources I use for GPU stuff: Link

 

They tend to be fairly spot on.

Well I do not dislike the card, but the card seems to be getting hot rather quickly. It has a hard time even in a game like Just Cause 2 and in ARMA2 it can reach up to 80C (I think it hit 82C once) and that is with an extra fan on the side of the panel blowing air in. Without it, the card would most likely reset itself all the time. 

Then again it is rather hot outside as well right now. So giving it the benifit of the doubt. Overall an ok card though for the price. 

 

Just a side note  - Every ATI card I have owned put out way too much heat.

 

And everytime I have seen someone build a full system, and they go with a ATI card, they replace the stock cooler for an aftermarket cooler.

  Thorkune

Spotlight Poster

Joined: 9/28/06
Posts: 1842

Dyslexics of the world...UNTIE!

5/28/12 5:51:47 PM#38
Originally posted by caremuchless

Just a side note  - Every ATI card I have owned put out way too much heat.

 

And everytime I have seen someone build a full system, and they go with a ATI card, they replace the stock cooler for an aftermarket cooler.

I agree with you. My 5770 HD used to run very hot. I had to upgrade my case just for SWTOR. The overheating issues were crazy. I never had any heating issues with my 8800GT alpha dog.

  Woopin

Apprentice Member

Joined: 3/14/07
Posts: 1029

5/28/12 6:01:45 PM#39

Once I find anything that can slow down my Overclocked watercooled MSI GTX580 then I will upgrade. But I have found nothing that bogs it down as of yet. But when I upgrade and I will be going for the top card at the time buying a water block and overclocking as I always do.

I love the GTX cards if I am honest so I would of gone for the GTX680 for sure.

  Quizzical

Guide

Joined: 12/11/08
Posts: 13597

 
OP  5/28/12 8:38:11 PM#40
Originally posted by HorrorScope
Originally posted by Quizzical
Originally posted by HorrorScope

Why is a 7770 better then a 460?

The GeForce GTX 460s that you've seen reviews of are long gone, as those were discontinued more than a year ago.  The GeForce GTX 460s that you can buy today are a different card entirely, and weren't sent to reviewers, so we can only guess how they perform.

As compared to those GTX 460s, a Radeon HD 7770 is probably:

-faster

-cheaper

-uses far less power

-has a better feature set

The advantage of the GTX 460 is, well, there isn't one.

 

Faster, nope. Close to even.

Cheaper, nope. $99 for a 460.

Less Power, true. However neither are hogs.

Better feature set, yes on paper.

Most would say advantage NVidia vs ATI when equal. Less compatibility issues.

 

Updated Review:

http://www.ultimatehardware.net/amd/msi_radeon_hd_7770_page5.htm

"making the MSI GeForce GTX 460 the winner."

 

Then there are these to digest:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130759&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Video%20Cards-_-EVGA-_-14130759&AID=10440897&PID=3962334&SID=

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130770

Performance probably is fairly close between a GeForce GTX 460 and a Radeon HD 7770.  The factory overclocked (this matters if you're comparing it to a stock 7770!) GeForce GTX 460 listed in the review that you found on some obscure site is mostly unrelated (well, they're both Fermi, so they're not completely unrelated) to the GeForce GTX 460 that you'd get new today.  It's a different GPU die entirely, not to mention a different memory bus width.

As for a new GTX 460 for $99, give a link.  The cheapest new one on New Egg is $148 before rebate.  The cheapest Radeon HD 7770 is $125.

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