Comparison of XFX Speedster MERC 319 Radeon RX 6700 XT Black Gaming video card vs MANLI GeForce RTX 2080 SUPER (M3423+N502-00) video card by specifications and benchmarks. XFX Speedster MERC 319 Radeon RX 6700 XT Black Gaming runs at 2.457 GHz+ 6 % base clock speed and has 12 GB of GDDR6 memory, while video card MANLI GeForce RTX 2080 SUPER (M3423+N502-00) runs at 1.650 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 211 W-8 %, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.