Comparison of Sapphire Nitro+ Radeon RX Vega 64 LE video card vs ZOTAC GeForce GTX 1080 Ti AMP Extreme Core Edition video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX Vega 64 LE runs at 1.423 GHz+ 14 % base clock speed and has 8 GB of HBM2 memory, while video card ZOTAC GeForce GTX 1080 Ti AMP Extreme Core Edition runs at 1.607 GHz+ 9 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 295 W, and the second is 320 W+ 28 %. Compare the table of benchmark results to find out which graphic card is better.