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GPU Comparison

AMD Instinct MI355X vs NVIDIA H100 SXM

How the AMD Instinct MI355X and NVIDIA H100 SXM compare across memory, compute, power and form factor, with the stronger figure highlighted on each row. Vendor-specific figures (CUDA vs stream processors, Tensor vs matrix cores) are listed on their own rows.

Specification CDNA 4 AMD Instinct MI355X NVIDIA alternative: NVIDIA B200 → NVIDIA H100 SXM HOPPER NVIDIA H100 SXM View Product →
Pricing
Price Not sold by NVNexus –
Overview
Architecture AMD CDNA 4 Hopper
Memory
Memory 288 GB HBM3E 80 GB HBM3
Memory Bandwidth 8 TB/s 3.35 TB/s
Memory Interface 8192-bit –
Compute
Stream Processors (AMD) 16,384 (256 CUs) –
Matrix Cores / AI Accelerators (AMD) 1,024 –
FP32 157.3 TFLOPS 67 TFLOPS
FP64 Tensor 78.6 TFLOPS 67 TFLOPS
TF32 Tensor – 989 TFLOPS
FP16/BF16 Tensor 2.5 PFLOPS / 5 (sparse) TFLOPS 1,979 TFLOPS
FP8 Tensor 5 PFLOPS / 10.1 (sparse) TFLOPS 3,958 TFLOPS
FP4 Tensor 10.1 PFLOPS TFLOPS –
INT8 Tensor – 3,958 TOPS
Platform
Interface PCIe Gen5 x16 Gen5 128 GB/s
NVLink / Infinity Fabric Infinity Fabric, 1,075 GB/s aggregate 900 GB/s (4th Gen)
TDP 1400W Up to 700W (configurable)
Form Factor OAM module (8-GPU platform) SXM
Multi-Instance GPU (MIG) – Up to 7 instances (10GB each)
Cooling Liquid cooled –
Transistors 185 billion –
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