Comparison of GALAX GeForce GTX 1080 Ti video card vs PNY GeForce GTX 980 Ti XLR8 OC video card by specifications and benchmarks. GALAX GeForce GTX 1080 Ti runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card PNY GeForce GTX 980 Ti XLR8 OC runs at 1.165 GHz+ 17 % base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 250 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.