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Discussion Starter · #1 ·
Hey guys, just added another 5870 to my loop. I just didn't have enough money for the 7970 that I wanted. I'm really suprised at how well the crossfire set up is working BF3 works great on ultra minus AA. Just to test it out I did a Crysis Warhead bench on Frost and compared it to review sites that featured the 7970. I realize that this game is DX10 and that it won't use much for than 1GB of vram, but is this crossfire set up really more powerful? I also realize the 7970 was test at 1920x1200 and mine is 1920x1080, but I can't believe those extra pixels will result in a drop of 20 FPS.

Now that I look, I'm also beating out a 6990, am I dong something wrong? I do have a relatively high OC on both cards, 1030core freq and 1250mem.

Anadtech results: 50.3 FPS
5870 Crossfire: 71.41 FPS
Same graphical settings
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Here is a result of the 7970 while OCed and on the same res of 1920x1080p. 5870 crossfire shows a 15% increase in performance.

Quote:
Originally Posted by BinaryDemon View Post

I would have figured your crossfire setup was about equal, but yep you seem to be doing alot better than other 7970's in the same test. From another review:
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Other Benches:

Quote:
Originally Posted by Smykster View Post

Ok results are in for BF3 ultra quality 16xAF x4MSAA and HBAO on. My first result is no AA second result is x4MSAA, the thrid pics Anantech's run, I emulated their run as we both used operation swordbreaker. I will say before hand the the results averageing to 71FPS are misleading as it was choppy as hells at some points, and smooth at others. That being said, with the way it ran, I'd never play with AA on on this setup(AA off was smooth as butter). I think this is a vram limitation.
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Quote:
Originally Posted by Smykster View Post

Another comparison with a DX11 title, Dirt 3.
7970: 86fps
5870 crossfire: 123fps
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Newbie2009 was kind enough to get my some of his 7970 Crysis 2 benchmarks. Now the 5870 might seem more powerful in raw gpu power, but I needed a test that featured new technology to show the downside of have 2 cards from 2 generations in past. IE Heavy DX11 and teselation.

7970 OC Benchmark results: 91fps no AA, 88FPS x4AA

5870 OC Crossfire: 85FPS no AA, 38FPS x4 AA

Tesselation didn't seem to be the downfall of crossfire 5870's are for the most part, the FPS was competitive with the HD 7970. Adding AAx4 to the mix had the 5870's fall flat on their face as vram was maxed out, a huge difference in performance from the 5870's to the 7970. This makes me wonder hd 2gb variant of the 5870 would work on a benchmark like this.

7970 OC Benchmark results: 91fps no AA, 88FPS x4AA
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5870 OC Crossfire: 85FPS no AA, 38FPS x4 AA
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Wow, nice job. The only likely possibility i could think of might be driver based. Perhaps the Crossfire scaling for your cards was suddenly improved a fair margin for Crysis Warhead, otherwise it could perhaps even be down to something like time of day (with it having to render more/less shadows than the original benchmark). Are you perhaps running an overclock on your graphics card as well?
 

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I would have figured your crossfire setup was about equal, but yep you seem to be doing alot better than other 7970's in the same test. From another review:

335
 

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Discussion Starter · #7 ·
Quote:
Originally Posted by BinaryDemon View Post

I would have figured your crossfire setup was about equal, but yep you seem to be doing alot better than other 7970's in the same test. From another review:
335
Quote:
Originally Posted by microman View Post

apples and oranges bro... same resolution or none of this matters
Done my friend.
 

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I would easily believe that a HD 5870 CrossfireX beats a 7970. Besides, the HD 5870 was released more in the Crysis era, so it in theory would work better.
And are these tests done in DX9 or DX10?

EDIT:
doh.gif
I see that it is DX10 in the options haha
 

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this shows ATI was win before AMD came in?
 

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Discussion Starter · #12 ·
Quote:
Originally Posted by Soccerking3000 View Post

well because you are at 1920x1080 and not 1920x1200 you have 10% less pixels to run (2.3 mill vs 2 mill) so that has a lot to do with it
Already address in previous comment. still bests it by 10fps, 15% faster. This was in dx10 btw. Can somone recommend a dx11 benchmarking tool? I'd love to see how it compares with newer graphics tests. I'm certain that it will lose in highly tessellated benches but, for science, ya know?
 

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Discussion Starter · #14 ·
Quote:
Originally Posted by BinaryDemon View Post

I would have figured your crossfire setup was about equal, but yep you seem to be doing alot better than other 7970's in the same test. From another review:
335
Nope, that's average. No the mention, the 7970 is OCed so that is a more comparable number.
 

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If it makes you sleep better at night, it's all good. Though I surely won't going back to Cypress anytime soon.
 

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Discussion Starter · #16 ·
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Originally Posted by tsm106 View Post

If it makes you sleep better at night, it's all good. Though I surely won't going back to Cypress anytime soon.
I was sleeping just fine before hand bro. Why the aggressive negative tone? I'm simply sharing benchmarking results with a website that appreciates them. I could care less whose system is more powerful. I'm just surprised by the results of the test and decided to share them. I'm sure you're not tossing and turning too much with your quad-fire over there, that is of course, if GPU power determines the quality of your sleep.
 

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Mature drivers + Crossfire + that sexy overclock.. I would expect no less. Two top end cards from 3 generations ago narrowly besting the current single top end card, spells +1 for the 7970, to me. That's some real improvement.

There really wasn't much improvement from Cypress to Cayman. Cypress had some crippling faults that were addressed with Cayman, but overall performance wasn't much different. Tahiti shows real progress.

With a 7970 underwater and overclocked with mature drivers I'd expect nearly double the performance of a 5870, while chewing through heavy-tessellation titles. 100% performance improvements per 3 generations on a regular would be lovely.
 

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CrossfireX 5870's are still a quite fast for what they are.
The 2GB versions are quite capable for eyefinity.

Doesn't surprise me any.
 

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Nice! Kind of makes me wish I didnt sell one of my 5870s.
 
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