NVIDIA Tesla P4 's Advantages
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (192.3GB/s vs 80.00GB/s)
1664 additional rendering cores
NVIDIA T500 Mobile 's Advantages
Released 4 years and 3 months late
Boost Clock has increased by 52% (1695MHz vs 1114MHz)
Lower TDP (18W vs 75W)