AMD Radeon RX 560 XT 's Advantages
Released 5 years and 11 months late
Boost Clock has increased by 23% (1226MHz vs 1000MHz)
More VRAM (4GB vs 3GB)
Lower TDP (150W vs 375W)
AMD Radeon HD 8990 OEM 's Advantages
Larger VRAM bandwidth (288.0GB/s vs 224.0GB/s)
256 additional rendering cores