Comparison of Colorful GeForce GTX 1660 Ti 6G-V video card vs PowerColor Radeon RX 6500 XT ITX 4GB video card by specifications and benchmarks. Colorful GeForce GTX 1660 Ti 6G-V runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card PowerColor Radeon RX 6500 XT ITX 4GB runs at 2.200 GHz base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 107 W. Compare the table of benchmark results to find out which graphic card is better.