AMD Radeon RX Vega 56 's Advantages
Released 2 years and 3 months late
Boost Clock has increased by 89% (1471MHz vs 780MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (409.6GB/s vs 64.00GB/s)
3200 additional rendering cores
AMD Radeon R7 340 OEM 's Advantages
Lower TDP (50W vs 210W)