Comparison of KFA2 GeForce GTX 970 EXOC Infin8 Black Edition video card vs Zotac GeForce GTX 970 AMP! Extreme Core video card by specifications and benchmarks. KFA2 GeForce GTX 970 EXOC Infin8 Black Edition runs at 1.178 GHz+ 12 % 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.