Comparison of GIGABYTE GeForce RTX 4090 GAMING 24G video card vs Gainward GeForce RTX 4090 Phantom video card by specifications and benchmarks. GIGABYTE GeForce RTX 4090 GAMING 24G runs at 2.235 GHz base clock speed and has 24 GB of GDDR6X memory, while video card Gainward GeForce RTX 4090 Phantom runs at 2.235 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 450 W, and the second is 450 W. Compare the table of benchmark results to find out which graphic card is better.