Comparison of ZOTAC GAMING GeForce RTX 2080 AMP video card vs KFA2 GeForce RTX 3080 SG (1-Click OC) video card by specifications and benchmarks. ZOTAC GAMING GeForce RTX 2080 AMP runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory, while video card KFA2 GeForce RTX 3080 SG (1-Click OC) runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 225 W+ 5 %, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.