NVIDIA GeForce GT 1030 DDR4 's Advantages
Lower TDP (20W vs 150W)
NVIDIA GeForce GTX 1070 GDDR5X 's Advantages
Released 9 months late
Boost Clock has increased by 22% (1683MHz vs 1379MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.3GB/s vs 16.80GB/s)
1536 additional rendering cores