AMD Radeon R9 270 's Advantages
Lower TDP (150W vs 175W)
NVIDIA GeForce RTX 2070 's Advantages
Released 4 years and 11 months late
Boost Clock has increased by 75% (1620MHz vs 925MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (448.0GB/s vs 179.2GB/s)
1024 additional rendering cores