NVIDIA GeForce 825M 's Advantages
Released 6 years and 8 months late
Boost Clock941MHz
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (14.40GB/s vs 6.400GB/s)
376 additional rendering cores
NVIDIA GeForce 8400M G 's Advantages
Lower TDP (10W vs 33W)