NVIDIA GeForce GTX 470M 's Advantages
Lower TDP (75W vs 100W)
NVIDIA GeForce GTX 870M 's Advantages
Released 3 years and 6 months late
Boost Clock967MHz
More VRAM (3GB vs 1536GB)
Larger VRAM bandwidth (120.0GB/s vs 72.00GB/s)
1056 additional rendering cores