Comparison of GALAX GeForce GTX 1080 EX OC video card vs GALAX GeForce RTX 3080 SG (1-Click OC) LHR video card by specifications and benchmarks. GALAX GeForce GTX 1080 EX OC runs at 1.657 GHz+ 3 % base clock speed and has 8 GB of GDDR5X memory, while video card GALAX GeForce RTX 3080 SG (1-Click OC) LHR runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 180 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.