Comparison of ZOTAC GeForce GTX 1080 Ti AMP Extreme video card vs GALAX GeForce GTX 1080 Ti EX OC White video card by specifications and benchmarks. ZOTAC GeForce GTX 1080 Ti AMP Extreme runs at 1.645 GHz+ 11 % base clock speed and has 11 GB of GDDR5X memory, while video card GALAX GeForce GTX 1080 Ti EX OC White runs at 1.531 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 320 W+ 28 %, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.