Comparison of PowerColor Radeon RX 5500 XT ITX 4G video card vs GIGABYTE Radeon RX 6700 XT 12G video card by specifications and benchmarks. PowerColor Radeon RX 5500 XT ITX 4G runs at 1.607 GHz base clock speed and has 4 GB of GDDR6 memory, while video card GIGABYTE Radeon RX 6700 XT 12G runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 130 W, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.