NVIDIA GeForce GTX 860M 's Advantages
Boost Clock has increased by 6% (1085MHz vs 1024MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (80.19GB/s vs 14.40GB/s)
256 additional rendering cores
AMD Radeon 530 Mobile 's Advantages
Released 3 years and 3 months late
Lower TDP (50W vs 75W)