Is it worth it to upgrade from a GTX 660 SC to a 670

CBJ023

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Mar 17, 2013
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Hello, I have a EVGA 660 Superclocked graphics card. Testing it with Furmark and EVGA Pricsion it seems to have a GPU Clock of 1201mhz at 1.174 volts. (100 more than it says it should be on Amazon) I'm wondering if it would be worth it to sell it and upgrade to a 670 with a GPU clock of 1084. My card has a better GPU clock, but 200mz less memory and 384 less CUDA Cores. Do the Cuda cores make a big difference in performance? The 200mhz alone seems like it wouldn't be worth buying a new graphics card over, since I might even be able to overclock the card a little bit more than the SC. So basically is teh 1201 GPU clock my 660 is running good, and are CUDA cores a big factor in the performance of a graphics card.