NVIDIA GeForce GTX 1660 's Advantages
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (192.1GB/s vs 64.00GB/s)
640 additional rendering cores
AMD Radeon PRO W6300 's Advantages
Released 2 years and 10 months late
Boost Clock has increased by 14% (2040MHz vs 1785MHz)
Lower TDP (25W vs 120W)