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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dug777 - Monday, June 5, 2006 - link
? Seems daft not to include CF in that kinda comparison...Mclendo06 - Monday, June 5, 2006 - link
One of the concens I have had regarding this card is the noise level relative to nVidia's other top offering, the 7900GTX. I have seen all over the net that nVidia's large 2-slot heatsink is extremely quiet compared to most others. As the 7950 GX2 has 2 single slot type coolers, I am assuming that the noise is going to be considerably higher, but I haven't seen anything regarding noise levels on any of the reviews I've read so far. Could you weigh in on this (objective info on noise, I'm not looking for dBA measurements or anything).Mclendo06 - Monday, June 5, 2006 - link
Great minds think alike. If you answer VooDooAddict's post, feel free to ignore mine.VooDooAddict - Monday, June 5, 2006 - link
:)DerekWilson - Monday, June 5, 2006 - link
as for noise, from a subjective perspective, the 7950 GX2 is on a similar level to the 7900 GTX. Both are much much much quieter than an ATI X1900 XT spinning up to full speed.VooDooAddict - Tuesday, June 6, 2006 - link
Thanks for the updateVooDooAddict - Monday, June 5, 2006 - link
I see that it's mentioned in the article that the 7950GX2 draws less power then the 7900GTX:"For those who live on the bleeding edge, this lower power alternative to the 7900 GTX is a solid way to go."
Do you have any numbers to support this? Is that only in comparison to 7900GTX SLI or does is it truely consume less power then a single 7900GTX?
Another thing not mentioned was the noise level or the heat produced. I understand that you can't get numbers for everything ... but things like noise level and heat could be commented on subjectivly.
If looking at "high end perforamnce parts," but primarily concerned with power consumption, heat produced, and noise levels ... It's my understanding that the 7900GT and 7900GTX are prefered over the ATI solutions.
DerekWilson - Monday, June 5, 2006 - link
sorry -- there was a two fold problem herewith the server issues this morning, the power section was accidentally left out at publication.
unfortuantely, i also mentioned the wrong card in the conclusion -- my original references to the 7900 GTX should have been to the X1900 XT. This has been corrected. Sorry for the confusion.
VooDooAddict - Tuesday, June 6, 2006 - link
Thanks for the clarification.Jojo7 - Monday, June 5, 2006 - link
Derek, tell us how you really feel about content protection. Hah.Good article. I wasn't aware how elegant this solution was until now. It works regardless of the chipset. Impressive.