Comparison of EVGA GeForce GTX 970 SC Gaming video card vs Zotac GeForce GTX 970 AMP! Extreme Core video card by specifications and benchmarks. EVGA GeForce GTX 970 SC Gaming runs at 1.140 GHz+ 9 % base clock speed and has 4 GB of GDDR5 memory, while video card Zotac GeForce GTX 970 AMP! Extreme Core runs at 1.228 GHz+ 17 % base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 145 W-2 %, and the second is 145 W-2 %. Compare the table of benchmark results to find out which graphic card is better.