Comparison of Colorful GeForce GTX 1660 Ti SI 6G-V video card vs SAPPHIRE PULSE AMD Radeon RX 6500 XT video card by specifications and benchmarks. Colorful GeForce GTX 1660 Ti SI 6G-V runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card SAPPHIRE PULSE AMD Radeon RX 6500 XT 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 130 W+ 21 %. Compare the table of benchmark results to find out which graphic card is better.