Comparison of PowerColor Hellhound Radeon RX 6700 XT video card vs SAPPHIRE PULSE Radeon RX 6700 XT video card by specs and benchmarks. PowerColor Hellhound Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card SAPPHIRE PULSE Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 230 W, and the second is 230 W . Compare the benchmark results to find out which video card is better.