Side-by-side GPU comparison: specs, memory, compute performance, and live cloud pricing.
Verdict
B100 has 48 GB more VRAM, making it better suited for large models and long context windows. For compute-bound workloads like training, B100 delivers 64.3× higher FP16 throughput.
Specifications
| B100 | M3 Ultra (192 GB) | |
|---|---|---|
| VRAM | 192 GB | 144 GB |
| VRAM Type | HBM3e | LPDDR5 |
| Memory Bandwidth | 8.0 TB/s | 0.8 TB/s |
| FP16 Performance | 1750 TFLOPS | 27 TFLOPS |
| Manufacturer | NVIDIA | Apple |
| FP8 Support | Yes | No |
| FP4 Support | Yes | No |
Price / Performance
Based on cheapest single-GPU on-demand pricing. Lower $/TFLOP = better compute value; lower $/GB = better memory value.
| B100 | M3 Ultra (192 GB) | |
|---|---|---|
| $/hr (cheapest) | — | — |
| $/TFLOP (compute value) | — | — |
| $/GB VRAM (memory value) | — | — |
Cloud Pricing
Cheapest on-demand price per provider (single GPU).
B100
No cloud pricing available.
M3 Ultra (192 GB)
No cloud pricing available.
Model Compatibility
Models from the catalog that fit on each GPU, grouped by required precision.
B100 (1000 models)
M3 Ultra (192 GB) (1000 models)
You might also compare…
Pricing data refreshed hourly · Last updated June 1, 2026 · Browse all comparisons