Comparison of Sapphire Radeon RX 5700 8G video card vs Colorful iGame GeForce GTX 1070 Ti Vulcan X Top-V video card by specs and benchmarks. Sapphire Radeon RX 5700 8G runs at 1.465 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Colorful iGame GeForce GTX 1070 Ti Vulcan X Top-V runs at 1.465 GHz base clock speed and has 8 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 180 W, and the second is 180 W . Compare the benchmark results to find out which video card is better.