Comparison of SAPPHIRE NITRO+ Radeon RX 6600 XT video card vs GIGABYTE GeForce RTX 2060 GAMING OC PRO WHITE 6G video card by specs and benchmarks. SAPPHIRE NITRO+ Radeon RX 6600 XT runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card GIGABYTE GeForce RTX 2060 GAMING OC PRO WHITE 6G runs at 1.968 GHz base clock speed and has 6 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 160 W, and the second is 160 W . Compare the benchmark results to find out which video card is better.