Comparison of Gainward GeForce RTX 3080 Ti Phoenix video card vs ASUS TUF Gaming GeForce RTX 3090 OC video card by specifications and benchmarks. Gainward GeForce RTX 3080 Ti Phoenix runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory, while video card ASUS TUF Gaming GeForce RTX 3090 OC runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 350 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.