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Interesting... CF 6950s (ULd) vs CF 2GB 5870s

post #1 of 14
Thread Starter 
I was feeling kinda bad about selling my two HIS 2GB 6950s for two Sapphire 5870 E6s for the sole reason of being able to run OSX, so I decided to run a 3dMark11 bench. I was expecting around 7,000 points, considering the 5870s are supposed to scale at around 70%. I set everything identical to when I tested my 6950s:

CPU: 4.5GHz HT on
GPUS: CF HD 6950 ULd @ 900MHz, 1475MHz (2 XFire bridges)
RAM: 1600 8-8-8-24

vs.

CPU: 4.5GHz HT on
GPUS: CF Sapphire HD 5870 Eyefinity 6 @ 1GHz, 1300MHz (2 XFire bridges)
RAM: 1600 8-8-8-24

As to the GPU OC, I just set them both to their MAX OC, to get their maximum performance.

So I was expecting around 7k points when the bench was loading the scores, but when I saw the actual score I was surprised.

5870s = 9790
6950s = 9743

5870 Score
6950 Score

Some explanations for this could be that I was using CCC 11.3 on the 6950s, and 11.5b for the 5870s, but this is truly impressive, why aren't my 5870s scaling crapily?

EDIT: Also, just for fun I found this, it's my old GTX 480's 3DMark11 run: Click Me Too
Edited by snelan - 5/26/11 at 2:12pm
    
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post #2 of 14
Synthetic benchmark...
The 3930
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post #3 of 14
I'm confused as to why you have two X-Fire bridges?
    
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post #4 of 14
Thread Starter 
Quote:
Originally Posted by tsm106 View Post
Synthetic benchmark...
That's what I'm thinking, but I always thought it was pretty accurate.

I'm gonna try Ungine now, the 5870s will fail due to the tesselation.
    
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post #5 of 14
Thread Starter 
Quote:
Originally Posted by Senator View Post
I'm confused as to why you have two X-Fire bridges?
Because I would lose the other one if I put it in my drawer.
    
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post #6 of 14
Eureka!
    
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post #7 of 14
Thread Starter 
I dug up the 6950s score page, it's up now - 9743
    
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post #8 of 14
6950 CF is much faster than 5870 CF.
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post #9 of 14
Thread Starter 
Quote:
Originally Posted by Stefy View Post
6950 CF is much faster than 5870 CF.
That's my point
    
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post #10 of 14
Well, there's no explanation needed. Synthetic benchmarks are useless.
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