Comparison of Intel Iris Pro Graphics P580 video card vs AMD Radeon Vega 3 Graphics video card by specs and benchmarks. Intel Iris Pro Graphics P580 runs at 0.350 GHz base clock speed and has 64 GB of memory, while video card AMD Radeon Vega 3 Graphics runs at 0.350 GHz base clock speed and has 2 GB of memory. The weight is different, -- vs --. The TDP of the first video card is --, and the second is -- . Compare the benchmark results to find out which video card is better.