Comparison of AMD Radeon R7 - 384 (Kaveri) video card vs AMD Radeon HD 8400 video card by specs and benchmarks. AMD Radeon R7 - 384 (Kaveri) runs at 0.760 GHz base clock speed and has 2 GB of memory, while video card AMD Radeon HD 8400 runs at 0.760 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.