Dual SLI GTX 275 vs GTX 660

[Senor Snarf]

I'm running a pair of GTX 275's in SLI and am looking to make a worthwhile upgrade, that will keep me running games on ultra high for a few years like these things did. Would a single GTX 660 give me a large performance increase? I'm also not sure if my rig would bottleneck it. Here's my specs, I'd really appreciate any advice on this:

Intel Core i7 920 @ 2.67GHz
6GB DDR3 RAM @ 1600MHZ
Two 640 GB WD Caviar Blacks in RAID 0
NVIDIA GeForce GTX 275 x 2 in SLI
ASUS P6T motherboard

 

[ko888]

Your original choice EVGA 02G-P4-2678-KR GeForce GTX 670 FTW 2GB has 1.49X the performance of two GeForce GTX 275 in 2-way SLI mode.

The MSI N660 Ti PE 2GD5/OC GeForce GTX 660 Ti 2GB has 1.3X the performance of two GeForce GTX 275 in 2-way SLI mode.

 

[sam_p_lay]

Is that from the nVidia website? I'd estimate a very small performance gain from a GTX660 or GTX660 Ti. Your SLI setup is probably quite close in performance to a single GTX480 / GTX570 / HD6970 / HD7850 if that's any help. If you need more graphics muscle, you'd want to step right up to a GTX670 for a noticeable improvement, or wait for next year's models.

 

[Senor Snarf]

I think I'm gonna go with the 670, as a 1.3x increase from the 660 really isn't worth hundreds of dollars to me. Go big or or go home, right? Within reason anyway.

Thanks for the advice guys.

 

[ko888]

Another benefit is that you'll have more performance with lower power consumption and heat than your current SLI setup.

 

[Senor Snarf]

Best answer selected by Senor Snarf.