At 1920x1200 all on medium dx10 and 64 bit, Crysis Benchmark: 8800gts g92 = 36fps, 8800gts g92x2 sli = 35 fps??? WTF! My system is below. Shouldnt sli give better performance??? OR whats the point? Im not sure what is wrong. I have all the most current drivers from 1.1 to 1.2 to 1.2.1. I also have vista sp1. In the nvidia control panel I enabled sli but I dont see any benefits accept in 3dmarks. Could this be caused by a psu problem? I have an 850W antec made for sli. Also when I overclock my fps seem to go down. Could someone please help me. PLEASE, im at my wits end with this build, im about to throw it out the window.

Upgrade drivers probably? 169.21 latest drivers WHQL

I have the latest gpu drivers. Also, I have tried both cards separately and they both work. Please, does anyone have any ideas?

Nothing?? Im sad!

Do u see performance gains in any other games at all? and how much of an improvement in 3dmark r u actually getting?

Wat performace gain in other games ? If still as single card, check if sli is properly enabled in bios or flipped pcb switch between two pci-e to ensure sli ?

Very basic question, but sometimes we miss the obvious: if you run GPU-Z, does it report "NVidia SLI" enabled?

Ok, Gpu-z shows that sli is enabled. In other games I get about 0-5 fps better then with no sli. On 3dmarks I get 11250 with one gpu and 12400 with two gpus in sli. Any ideas? Thanks for the help so far. I dont understand. Maybe sli just sucks for newer games and or cards.

When you say "latest drivers" do you mean the 169.25 or the 174.74?

While I think of it, have you tried running the 32 bits version? I came across this thread and even if its old, it might be worth a try.

Hi Ryanthesav.
 
Sounds like you may need to tweak the Nvidia control panel settings a little.
 
Under Nvidia control panel, go to manage 3d settings and then program settings. Find crysis under "select a program to override." Find SLI performance mode. Try changing that setting to "Force Alternate Frame Rendering 1 or Force Alternate Frame Rendering 2." I've found that AFR mode 2 seems to work for me the best. Also at that resolution you will want to make sure antialiasing is set to "application controlled." Shut it off in the game settings. You will also want to make sure your anisotrophic filtering is set no higher than 4 or 8.

Sli is over rated. You bought into marketing hype.

On the GPU charts @ Tom's Hardware... they really need to add Crysis. It's [U]the[/U] game that everyone benchmarks by.
 
And @ roadrunner197069, a lot of times, SLI is not overrated:
http://www23.tomshardware.com/grap [...] &chart=338
http://www23.tomshardware.com/grap [...] &chart=278
 
A lot of other games at that res have that much (and better) performance. Generally it depends on the motherboard, the game and its resolution, and the card itself.

jpmeaney thank you thank you thank you I gained about 10 to 15 fps on average changing the sli performance mode. I wish there were more people  like you on this forum. Thank you again.

 
Sssh, if it wasn't for morons like the OP with more money than sense nVidia would not be able to create the excellent single GPU solutions at cheap prices.
 
I say let them buy SLI, one card, two cards, THREE cards, <lightning flash and thunder clap> A HAHAHA!

^ Does it look better? Or play better?
 
@ doomsdaydave11: Every game has its magical FPS number and after that number is met the rest is waste. You eye cant tell the difference.

It looks the same and just has better fps. Parts that I used to get 35 fps I now get about 55fps and parts that I would get 20fps I now get about 30fps. I don't think many people know about this tweak, at least I didn't. Bf2gameplaya, this second card was from my tax refund; I'm not rich, take it easy bro.

I've had really good SLI experiences (7600GT and 8800GTS 640mb). Over hyped? Most definitely. Worth it? Up for debate.

I think you're all wrong--I think he is bottlenecked by his CPU.
 

I think in many ways ur right hesskia. Im waiting for the phenoms to be overclockable to 3ghz and then ill go quad.

Glad ya got it sorted ryan, i dont think sli is a waste, you can acheive good r