Comparison of XFX Speedster MERC 319 Radeon RX 6800 XT Core Gaming video card vs GIGABYTE Radeon RX 6700 XT EAGLE OC 12G 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 GIGABYTE Radeon RX 6700 XT EAGLE OC 12G runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.