Comparison of GIGABYTE Radeon R9 Nano video card vs AMD Radeon R9 Nano video card by specifications 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 TDP of the first video card is 175 W, and the second is 175 W. Compare the table of benchmark results to find out which graphic card is better.