NVIDIA Single Card, Multi-GPU: GeForce 7950 GX2
by Derek Wilson on June 5, 2006 12:00 PM EST- Posted in
- GPUs
F.E.A.R. Performance
These benchmarks stand to show that F.E.A.R. is in no way a CPU limited game. Even at 1280x1024, the 7950 GX2 shows about a 28% performance lead over the 7900 GTX. Enabling AA pushes that performance lead up over 46%. The point proved here is that there will come a time when more games will demand 7950 GX2 level power at even common desktop resolutions. F.E.A.R. is currently one of the exceptions to the rule, so we still don't recommend that gamers who commonly play at resolutions below 1600x1200 invest in this level of hardware.
The multi-GPU solutions continue to excel under F.E.A.R. as resolution in creases. While the 7900 GT and X1900 GT start to become borderline playable at 1600x1200 with 4xAA, there 7900 GT SLI and 7950 GX2 are still butter smooth.
Even at 2048x1536 with 4xAA, NVIDIA's new high end flagship sails on at an enjoyable 45 fps. The gap between the X1900 XT starts to close at this resolution, dropping back down to only about a 30% lead, but this is understandable considering the volume of data that needs to be sent from one GPU to another. Added stress on memory bandwidth could also be the reason we see the 7900 GT SLI closing the performance gap between itself and the 7950 GX2 (which has a 120Mhz lower effective data rate off of each GPU).
These benchmarks stand to show that F.E.A.R. is in no way a CPU limited game. Even at 1280x1024, the 7950 GX2 shows about a 28% performance lead over the 7900 GTX. Enabling AA pushes that performance lead up over 46%. The point proved here is that there will come a time when more games will demand 7950 GX2 level power at even common desktop resolutions. F.E.A.R. is currently one of the exceptions to the rule, so we still don't recommend that gamers who commonly play at resolutions below 1600x1200 invest in this level of hardware.
The multi-GPU solutions continue to excel under F.E.A.R. as resolution in creases. While the 7900 GT and X1900 GT start to become borderline playable at 1600x1200 with 4xAA, there 7900 GT SLI and 7950 GX2 are still butter smooth.
Even at 2048x1536 with 4xAA, NVIDIA's new high end flagship sails on at an enjoyable 45 fps. The gap between the X1900 XT starts to close at this resolution, dropping back down to only about a 30% lead, but this is understandable considering the volume of data that needs to be sent from one GPU to another. Added stress on memory bandwidth could also be the reason we see the 7900 GT SLI closing the performance gap between itself and the 7950 GX2 (which has a 120Mhz lower effective data rate off of each GPU).
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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.