Comparison of ASUS ROG Poseidon GeForce GTX 980 video card vs ASUS ROG Matrix GeForce GTX 980 video card by specifications and benchmarks. ASUS ROG Poseidon GeForce GTX 980 runs at 1.127 GHz base clock speed and has 4 GB of GDDR5 memory, while video card ASUS ROG Matrix GeForce GTX 980 runs at 1.127 GHz base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 165 W, and the second is 165 W. Compare the table of benchmark results to find out which graphic card is better.