Comparison of GIGABYTE Radeon RX Vega 64 Silver 8G video card vs PNY RTX A2000 12GB video card by specifications and benchmarks. GIGABYTE Radeon RX Vega 64 Silver 8G runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card PNY RTX A2000 12GB runs at 0.562 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 70 W. Compare the table of benchmark results to find out which graphic card is better.