AMD Radeon RX 470D 's Advantages
Released 2 years and 11 months late
Boost Clock has increased by 55% (1206MHz vs 780MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (211.2GB/s vs 28.80GB/s)
1472 additional rendering cores
AMD Radeon R7 240 OEM 's Advantages
Lower TDP (50W vs 120W)