Comparison of XFX Speedster MERC 319 Radeon RX 6800 XT Core Gaming video card vs PNY GeForce RTX 2080 XLR8 Gaming video card by specifications and benchmarks. XFX Speedster MERC 319 Radeon RX 6800 XT Core Gaming runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card PNY GeForce RTX 2080 XLR8 Gaming runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 215 W. Compare the table of benchmark results to find out which graphic card is better.