Comparison of XFX Speedster MERC 319 Radeon RX 6900 XT Limited Black Gaming video card vs Palit GeForce GTX 1080 OC Super JetStream video card by specifications and benchmarks. XFX Speedster MERC 319 Radeon RX 6900 XT Limited Black Gaming runs at 2.150 GHz+ 18 % base clock speed and has 16 GB of GDDR6 memory, while video card Palit GeForce GTX 1080 OC Super JetStream runs at 1.708 GHz+ 6 % base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 300 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.