Comparison of ASRock Radeon RX 6700 XT Challenger D 12GB video card vs EVGA GeForce GTX 1660 Ti SC ULTRA GAMING video card by specifications and benchmarks. ASRock Radeon RX 6700 XT Challenger D 12GB runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card EVGA GeForce GTX 1660 Ti SC ULTRA GAMING runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 230 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.