Comparison of Gainward GeForce RTX 3090 Phoenix video card vs ASUS ROG Strix GeForce RTX 3080 Ti video card by specs and benchmarks. Gainward GeForce RTX 3090 Phoenix runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory, while video card ASUS ROG Strix GeForce RTX 3080 Ti runs at 1.395 GHz base clock speed and has 12 GB of GDDR6X memory. The weight is different, -- vs --. The TDP of the first video card is 350 W, and the second is 350 W . Compare the benchmark results to find out which video card is better.