Comparison of ZOTAC GeForce GTX 980 Ti video card vs XFX SPEEDSTER SWFT 319 Radeon RX 6800 CORE video card by specs and benchmarks. ZOTAC GeForce GTX 980 Ti runs at 1.000 GHz base clock speed and has 6 GB of GDDR5 memory, while video card XFX SPEEDSTER SWFT 319 Radeon RX 6800 CORE runs at 1.000 GHz base clock speed and has 16 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.