AMD Radeon R7 265 's Advantages
Larger VRAM bandwidth (179.2GB/s vs 96.00GB/s)
256 additional rendering cores
NVIDIA RTX A400 's Advantages
Released 10 years and 2 months late
Boost Clock has increased by 90% (1762MHz vs 925MHz)
More VRAM (4GB vs 2GB)
Lower TDP (50W vs 150W)