Comparison of EVGA GeForce RTX 3090 XC3 GAMING video card vs Zotac GAMING GeForce RTX 3080 AMP Holo LHR 12GB video card by specifications and benchmarks. EVGA GeForce RTX 3090 XC3 GAMING runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory, while video card Zotac GAMING GeForce RTX 3080 AMP Holo LHR 12GB runs at 1.260 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 350 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.