NVIDIA Quadro K4200 's Advantages
Larger VRAM bandwidth (172.8GB/s vs 80.19GB/s)
704 additional rendering cores
NVIDIA Quadro M1200 Mobile 's Advantages
Released 2 years and 6 months late
Boost Clock has increased by 46% (1148MHz vs 784MHz)
Lower TDP (45W vs 108W)