Comparison of GIGABYTE Radeon R9 Nano video card vs AMD Radeon R9 Nano video card by specs and benchmarks. GIGABYTE Radeon R9 Nano runs at 1.000 GHz base clock speed and has 4 GB of HBM memory, while video card AMD Radeon R9 Nano runs at 1.000 GHz base clock speed and has 4 GB of HBM memory. The weight is different, -- vs --. The TDP of the first video card is 175 W, and the second is 175 W . Compare the benchmark results to find out which video card is better.