Comparison of XFX Radeon RX 580 GTR XXX Edition 8GB Crimson video card vs Colorful iGame GeForce GTX 1660 Ti Advanced OC 6G-V video card by specifications and benchmarks. XFX Radeon RX 580 GTR XXX Edition 8GB Crimson runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card Colorful iGame GeForce GTX 1660 Ti Advanced OC 6G-V runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 185 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.