B200 SXM 192GB vs AMD Instinct MI325X
AI GPU comparison · NVIDIA vs AMD · 2025 vs 2024
B200 SXM 192GB vs AMD Instinct MI325X — head to head
| Metric | B200 SXM 192GB | AMD Instinct MI325X |
|---|---|---|
| Relative tier | 100/100 | 96/100 |
| TDP / power | 1000 W | 1000 W |
| Memory | 192 GB | 256 GB |
| Bandwidth | 8000 GB/s | 6000 GB/s |
| Boost clock | 1975 MHz | 2100 MHz |
| FP16 compute | 2250 TFLOPS | 1307 TFLOPS |
Which one should you pick?
B200 SXM 192GB leads by ~4 tier points — a modest relative-performance gap. 256 GB VRAM on the larger card vs 192 GB. Tier is a TweakGearPro planning estimate, not a benchmark — verify with reviews that match your exact workload, resolution and workload mix before buying.
Specs: vendor datasheets / TechPowerUp database, retrieved 2026-08-29. Tier is a TweakGearPro relative performance index (estimate), not a benchmark guarantee.
Full specifications
B200 SXM 192GB
| Brand / series | NVIDIA Datacenter Blackwell |
|---|---|
| Architecture / class | Blackwell |
| Launch year | 2025 |
| Memory | 192 GB HBM3e · 8192-bit · 8000 GB/s |
| Boost clock | 1975 MHz |
| FP16 compute | 2250 TFLOPS |
| FP8 compute | 4500 TFLOPS |
| Interconnect | NVLink 5 / SXM6 |
| TDP | 1000 W |
| Relative tier | 100/100 — Enthusiast flagship |
AMD Instinct MI325X
| Brand / series | AMD Instinct MI325 |
|---|---|
| Architecture / class | CDNA 3 |
| Launch year | 2024 |
| Memory | 256 GB HBM3e · 8192-bit · 6000 GB/s |
| Boost clock | 2100 MHz |
| FP16 compute | 1307 TFLOPS |
| FP8 compute | 2614 TFLOPS |
| Interconnect | Infinity Fabric |
| TDP | 1000 W |
| Relative tier | 96/100 — Enthusiast flagship |