Which configuration is better and will last the longest? A GTX 660 Windforce Edition in SLI (8x/8x) or a single GTX 970?

madcal2000

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May 24, 2015
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I currently have a GTX 660 Windforce Edition and my friend has the exact same as me. He has recently upgraded to a GTX 960 and has offered to sell me his 660 so I can put it in SLI. My CPU can only have SLI in 8x/8x as my CPU only has 16 PCI-e lanes. I have been looking at a GTX 970 but I don't know which configuration will be faster and more future-proof.
 
Solution
A single gtx 970 should be faster than sli 660. 8x Gen 3 is still enough bandwidth for even the fastest cards and is not the reason why 970 outperforms sli 660. The extra 1.5 gb of vram and the extra cuda cores is. Cards with more vram tend to stay relevant longer.
A single gtx 970 should be faster than sli 660. 8x Gen 3 is still enough bandwidth for even the fastest cards and is not the reason why 970 outperforms sli 660. The extra 1.5 gb of vram and the extra cuda cores is. Cards with more vram tend to stay relevant longer.
 
Solution