Comparison of ASRock Radeon RX 6600 Challenger ITX video card vs PNY GeForce GTX 1080 V2 video card by specifications and benchmarks. ASRock Radeon RX 6600 Challenger ITX runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card PNY GeForce GTX 1080 V2 runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 132 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.