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[Toms] Triple-GPU Scaling: AMD CrossFire Vs. Nvidia SLI

post #1 of 93
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Quote:
Two GPUs are great, but are three that much better? When it comes to multi-card scaling, can AMD finally beat Nvidia? Who really needs this much performance? We loaded a super-fast system in single-, dual-, and triple-GPU configurations to find out.

The battle for GPU supremacy is a bit of a waiting game. The recent launch of AMD's Radeon HD 6990 (AMD Radeon HD 6990 4 GB Review: Antilles Makes [Too Much] Noise) and upcoming introduction of Nvidia's GeForce GTX 590 help demonstrate.

Roughly every six moths, two companies with similarly-capable products wait to see what the other one will showcase, hoping to trump that introduction a few days later by tweaking the clocks, power, and configuration of their own product. Both firms use these delays to build anticipation among followers. Though, as that very same 6990 story showed us, being a "fan" of either company is just silly. Why make excuses for one design team's poor execution and then slam the competition for the very same thing?
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post #2 of 93
No contest
How about them drivers?

Historically NV has had superior 2 card scaling, looks like that has changed.
I'd like to see quad scaling as well.
Edited by grunion - 3/14/11 at 5:32am
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post #3 of 93
3-way not worth it, yet.
post #4 of 93
Quote:
Any Radeon HD 6950 CrossFire solution beats any GeForce GTX 570 SLI configuration at 2560x1600, regardless of whether two or three cards are used.
Problem is the graphs in the beginning show different.

But either way. Either card is amazing, and is a good choice. You can't really go wrong with AMD or Nvidia.
post #5 of 93
Quote:
Originally Posted by SupaSupra View Post
Problem is the graphs in the beginning show different.

But either way. Either card is amazing, and is a good choice. You can't really go wrong with AMD or Nvidia.
This.
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post #6 of 93
Impressive scaling from the 6950 at high resolutions..
post #7 of 93
Quote:
Originally Posted by SupaSupra View Post
Problem is the graphs in the beginning show different.

But either way. Either card is amazing, and is a good choice. You can't really go wrong with AMD or Nvidia.
Quote:
Originally Posted by Velcrowchickensoup View Post
This.
What, specifically?
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post #8 of 93
interesting.
post #9 of 93
Cheapest GTX 570 at www.overclockers.co.uk is £270 making Tri-SLI £810

Cheapest 6950 at www.overclockers.co.uk is £210 making Tri-Fire £630

Cheapest 6970 at www.overclockers.co.uk is £265 making Tri-Fire £795

It really is a no brainer to work out which system to go for especially if you can get all 3 of them 6950's to unlock then the GTX 570 will be seriously struggling
Edited by almighty15 - 3/14/11 at 5:42am
post #10 of 93
Scaling can always be hit or miss, gen-to-gen/card-to-card. What I found interesting was how much faster the nVidia cards remained despite 'inferior scaling' or whatever you want to call it. Hell, 2 way SLI is about identical to Trifire:



The dropoff between 2/3 is still terrible for both any way you slice it.
Edited by Celeras - 3/14/11 at 5:44am
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