Comparison of ZOTAC Gaming GeForce RTX 3080 Ti AMP Extreme Holo video card vs Gainward GeForce RTX 3080 Ti Phantom GS video card by specs and benchmarks. ZOTAC Gaming GeForce RTX 3080 Ti AMP Extreme Holo runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory, while video card Gainward GeForce RTX 3080 Ti Phantom GS runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The weight is different, -- vs --. The TDP of the first video card is 400 W+ 14 %, and the second is 400 W+ 14 % . Compare the benchmark results to find out which video card is better.