Comparison of ASUS ROG Poseidon GeForce GTX 1080 Ti Platinum edition video card vs GIGABYTE GeForce GTX 980 Ti Xtreme Gaming C video card by specs and benchmarks. ASUS ROG Poseidon GeForce GTX 1080 Ti Platinum edition runs at 1.594 GHz+ 8 % base clock speed and has 11 GB of GDDR5X memory, while video card GIGABYTE GeForce GTX 980 Ti Xtreme Gaming C runs at 1.594 GHz+ 8 % base clock speed and has 6 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.