AMD Radeon R9 280 's Advantages
Larger VRAM bandwidth (240.0GB/s vs 124.0GB/s)
1024 additional rendering cores
Intel Arc A310 's Advantages
Released 8 years and 7 months late
Boost Clock has increased by 88% (1750MHz vs 933MHz)
More VRAM (4GB vs 3GB)
Lower TDP (30W vs 200W)