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The GPU That Doubles H100 Memory Without Changing the Rest of Your Cluster
The H100 has an 80 GB HBM3 ceiling. The NVIDIA H200 removes it — 141 GB of HBM3e with 4.8 TB/s memory bandwidth, un 75 percent capacity increase and 60 percent bandwidth increase over H100, in the same SXM5 form factor with the same NVLink topology. For LLM teams whose models exceed 80 GB per GPU — 70B parameter models in full precision, MoE models with large expert weights, or long-context inference with huge KV caches — the H200 is the drop-in upgrade that doubles usable memory per GPU without redesigning the cluster fabric.
Spécifications techniques
| Paramètre | spécification |
|---|---|
| Architecture GPU | NVIDIA Hopper (GH100, same die as H100 SXM5) |
| Couleurs CUDA | 16,896 |
| Noyaux tenseurs | 528 (4th Gen, Hopper) |
| Mémoire | 141 GB HBM3e |
| Bande passante mémoire | 4.8 To/s (vs H100’s 3.35 To/s, +43 percent) |
| Memory Capacity | 141 Go (vs H100’s 80 Go, +76 percent) |
| Interface | PCIe 5.0 x16 (SXM5 module via NVSwitch or PCIe variant) |
| NVLien | 900 Go/s (NVSwitch, jusqu'à 8 GPUs in one node) |
| FP8 Tensor Core (avec parcimonie) | 3,958 TFLOPS |
| FP16/BF16 Tensor Core (avec parcimonie) | 1,979 TFLOPS |
| Noyau tenseur TF32 | 989 TFLOPS |
| FP64 | 67 TFLOPS |
| Moteur de transformateur | Oui (PC8, automatic precision selection) |
| MOI (GPU multi-instances) | Jusqu'à 7 instances |
| TDP | 700O (SXM5), ~600W (Variante PCIe) |
| Facteur de forme | SXM5 module (8-GPU NVLink node) ou PCIe 5.0 double emplacement |
| Supported Platforms | Dell XE9680 (8x H200), xFusion G5500 V7 (up to 8-10x), NVIDIA DGX H200 |
| garantie | 3-année (with server) |
H200 vs H100 vs A100 — The Memory Ceiling Comparison
| Fonctionnalité | H200 141GB | H100 80 Go | A100 80 Go |
|---|---|---|---|
| Mémoire | 141 GB HBM3e | 80 GB HBM3 | 80 GB HBM2e |
| Bande passante mémoire | 4.8 To/s | 3.35 To/s | 2.0 To/s |
| FP8 Tensor (sparsity) | 3,958 TFLOPS | 3,958 TFLOPS (same compute die) | N / A (no FP8) |
| 70B Model Fit (FP16, no quant) | Oui (141 GB holds ~140 GB weights+KV) | Non (needs 2 GPUs or quantization) | Non (needs quantization) |
| Long-Context Inference (100K+ tokens) | Excellent (large KV cache fits) | KV cache overflows to CPU | KV cache overflows to CPU |
| Prix (par rapport à H100) | ~135-145 percent | 100 percent | ~50 percent |
Why the 141 GB Matters: The Model Fitting Problem
Training or serving a 70B parameter model in BF16 requires roughly 140 GB of GPU memory — 70B x 2 bytes per parameter. The H100’s 80 GB cannot hold it: you either quantize (losing precision), use tensor parallelism across 2 GPU (doubling memory traffic and halving scaling efficiency), or stream weights (killing throughput). The H200’s 141 GB fits the full model plus KV cache on a single GPU. For inference, a 32K-token context window with a 70B model consumes ~20 GB of KV cache on top of weights — the H200 is the only single-GPU option that fits both without spilling. This is the difference between an inference server that serves one request at a time and one that serves 8-16 concurrent requests.
Compatible Platforms
SXM5 variant: Dell XE9680 (8x H200, NVLink NVSwitch fabric), xFusion G5500 V7, NVIDIA DGX H200. Variante PCIe: any server with 700W GPU power delivery and adequate airflow. Verify server firmware supports H200 before ordering — H200 requires BIOS/BMC updates on platforms originally shipping with H100.
Source via Xincuan
We configure H200 GPU servers with factory-direct pricing, 3-an de garantie, and global shipping. Lead times are shorter than 2025 H200 allocation; contact us for current availability.
