NVIDIA Single Card, Multi-GPU: GeForce 7950 GX2
by Derek Wilson on June 5, 2006 12:00 PM EST- Posted in
- GPUs
Quake 4 Performance
With Quake 4, low resolutions are very CPU limited, but we can start to see the advantage of 7950 GX2 when AA is enabled. Quake 4 scales very well on multi-GPU solutions, so its expected that the 7950 GX2 should come out on top in this benchmark.
Moving on, our theories are confirmed: the 7950 GX2 continues to remain that the top of the list in terms of average frame rate under Quake 4. Enabling AA is still necessary for the advantage to become significant, but the gap between the new fastest single card and the rest of the pack is definitely increasing.
At 2048x1536, even without AA the 7950 GX2 shows an 18% advantage over the next fastest single PCIe slot solution. Enabling 4xAA instantly boosts that lead to over 43%. In fact, running at 2048x1536 with 4xAA rather than one of the CPU limited resolutions on a 7950 GX2 will only cost you about 28% in performance over all.
With Quake 4, low resolutions are very CPU limited, but we can start to see the advantage of 7950 GX2 when AA is enabled. Quake 4 scales very well on multi-GPU solutions, so its expected that the 7950 GX2 should come out on top in this benchmark.
Moving on, our theories are confirmed: the 7950 GX2 continues to remain that the top of the list in terms of average frame rate under Quake 4. Enabling AA is still necessary for the advantage to become significant, but the gap between the new fastest single card and the rest of the pack is definitely increasing.
At 2048x1536, even without AA the 7950 GX2 shows an 18% advantage over the next fastest single PCIe slot solution. Enabling 4xAA instantly boosts that lead to over 43%. In fact, running at 2048x1536 with 4xAA rather than one of the CPU limited resolutions on a 7950 GX2 will only cost you about 28% in performance over all.
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DerekWilson - Monday, June 5, 2006 - link
Hello all,Just want to inform everyone that the article is now as it was intended to be. As has been mentioned before, we had some server trouble this morning which distracted me from getting everything posted up quite correctly.
Here's a short list of things added since the article went live --
1) Idle and Load power and power commentary
2) Analysis on each benchmark page for each resolution
3) a corrected typo wrt power draw between the 7950 GX2 and X1900XT
Sorry for the oversight, but all should be in order now. Please let me know if anything is out of the ordinary.
wilki24 - Tuesday, June 6, 2006 - link
Any chance to include an Oblivion page in the review?I'm thinking of buying one of these beasts, but I'd really like to see that first.
Thanks!
Jeff7181 - Tuesday, June 6, 2006 - link
Based on the rest of the results, looks like it should be just ahead of a couple 7900GT's in SLI... so... figure 5-10% better performance than a pair of 7900GT's.Regs - Monday, June 5, 2006 - link
I play HL2 EP One at 1600x1200 4x/4x Max and it's perfectly playable with a over clocked 7800GT with a 2.4 GHz AMD. Though other games at that setting it's a slide show...so I really have no point. But hey, I posted!JarredWalton - Monday, June 5, 2006 - link
We show 64.1 FPS at that setting, so yes, the game is imminently playable at 16x12 4x/8x with anything 7800GT/X1800 level or higher.JarredWalton - Monday, June 5, 2006 - link
"eminently playable" as well. ;)DerekWilson - Monday, June 5, 2006 - link
lets have a hand for our editor folks :-)Fenixgoon - Monday, June 5, 2006 - link
Where's the ATI x1900 XT crossfire? that would definitely make a more complete benchmark (people buying 7900GT SLI will probably also look at x1900 or x1800 crossfire)JarredWalton - Monday, June 5, 2006 - link
Considering this is a $600 single PCIe slot (double-wide) solution, its fair to compare it to single GPUs. The 7900 GT SLI is thrown in for reference, and you can see how other multi-GPU solutions stack up in other articles. X1900 XT CF (and 7900 GTX SLI) will certainly be faster, but both will also cost at least 50% more. If nothing else, the PCIe switch is an interesting development.MacGuffin - Monday, June 5, 2006 - link
That point is valid. This is available from XFX for $599 at NewEgg as we speak (in stock). X1900XT Crossfire is atleast $400+$450=$850+. But still, I'm sure it would make for a nice shootout (7900GTX SLI, X1900XT CF and this lone warrior).Quick question: does the 7950GX2 require games to have SLI-profiles for it to utilize both GPUs?