Comparison of GIGABYTE GeForce GTX 1660 OC 6G video card vs PNY GeForce RTX 3090 24GB XLR8 Gaming REVEL EPIC-X RGB video card by specifications and benchmarks. GIGABYTE GeForce GTX 1660 OC 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card PNY GeForce RTX 3090 24GB XLR8 Gaming REVEL EPIC-X RGB runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 120 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.