Comparison of AMD Radeon R6 (Kaveri) video card vs Intel Iris Pro Graphics P580 video card by specs and benchmarks. AMD Radeon R6 (Kaveri) runs at 0.800 GHz base clock speed and has 2 GB of memory, while video card Intel Iris Pro Graphics P580 runs at 0.800 GHz base clock speed and has 64 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.