NVIDIA H100 PCIe 's Advantages
Boost Clock has increased by 3% (1755MHz vs 1700MHz)
512 additional rendering cores
Lower TDP (350W vs 600W)
AMD Radeon Instinct MI300 's Advantages
Released 10 months late
More VRAM (128GB vs 80GB)
Larger VRAM bandwidth (3277GB/s vs 2039GB/s)