NVIDIA GeForce GTX 690 's Advantages
Larger VRAM bandwidth (192.3GB/s vs 96.00GB/s)
768 additional rendering cores
NVIDIA RTX A400 's Advantages
Released 11 years and 11 months late
Boost Clock has increased by 73% (1762MHz vs 1019MHz)
More VRAM (4GB vs 2GB)
Lower TDP (50W vs 300W)