AMD Radeon R5 340 OEM 's Advantages
Lower TDP (65W vs 185W)
AMD Radeon RX 580X 's Advantages
Released 2 years and 11 months late
Boost Clock has increased by 72% (1340MHz vs 780MHz)
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (256.0GB/s vs 36.80GB/s)
1920 additional rendering cores