Comparison of Gainward GeForce RTX 4080 Phoenix GS video card vs GIGABYTE GeForce RTX 3080 Eagle OC 10G video card by specs and benchmarks. Gainward GeForce RTX 4080 Phoenix GS runs at 2.205 GHz base clock speed and has 16 GB of GDDR6X memory, while video card GIGABYTE GeForce RTX 3080 Eagle OC 10G runs at 2.205 GHz base clock speed and has 10 GB of GDDR6X memory. The weight is different, -- vs --. The TDP of the first video card is 320 W, and the second is 320 W . Compare the benchmark results to find out which video card is better.