Comparison of GALAX GeForce RTX 4090 SG White (1-Click OC) video card vs Gainward GeForce RTX 3090 Ti Phantom video card by specs and benchmarks. GALAX GeForce RTX 4090 SG White (1-Click OC) runs at 2.235 GHz base clock speed and has 24 GB of GDDR6X memory, while video card Gainward GeForce RTX 3090 Ti Phantom runs at 2.235 GHz base clock speed and has 24 GB of GDDR6X memory. The weight is different, -- vs --. The TDP of the first video card is 450 W, and the second is 450 W . Compare the benchmark results to find out which video card is better.