Comparison of AMD Radeon R3 (Beema) video card vs AMD Radeon RX 680M video card by specs and benchmarks. AMD Radeon R3 (Beema) runs at 0.600 GHz base clock speed and has 2 GB of memory, while video card AMD Radeon RX 680M runs at 0.600 GHz base clock speed and has 8 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.