Comparison of GALAX GeForce GTX 1080 EX OC video card vs EVGA GeForce GTX 1080 Ti FOUNDERS EDITION 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 EVGA GeForce GTX 1080 Ti FOUNDERS EDITION runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 180 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.