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MCS · Rigs · Compare

Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

Rig A

NVIDIA H100

NVIDIA · accelerator

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Rig B

AMD Instinct MI355X

AMD · accelerator

Change

2 of 38 fields comparable

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NVIDIA H100AMD Instinct MI355X
HBM (GB)
80
288
Memory bandwidth (TB/s)
3.35
8
SpecNVIDIA H100AMD Instinct MI355X
HBM (GB)80288
Memory bandwidth (TB/s)3.358
Bf16 Matrix Pflops Dense—2.5
Bf16 Matrix Pflops Sparse—5
BF16 TFLOPS (sparse)1,979—
Compute Units—256
Cooling—direct liquid cooling (air-cooled option available)
Form factorSXMOAM
Fp16 Matrix Pflops Dense—2.5
Fp16 Matrix Pflops Sparse—5
FP16 TFLOPS (dense)989.5—
FP16 TFLOPS (sparse)1,979—
FP32 TFLOPS67—
Fp32 Vector Tflops—157.3
Fp64 Matrix Tflops—78.6
FP64 Tensor TFLOPS67—
FP64 TFLOPS34—
FP8 Matrix Pflops Dense—5
FP8 Matrix Pflops Sparse—10.1
FP8 TFLOPS (dense)1,979—
FP8 TFLOPS (sparse)3,958—
HBM Type—HBM3E
Helios Gpus PER Rack—72
INT8 TOPS (sparse)3,958—
Memory typeHBM3—
Mxfp4 Matrix Pflops—10.1
Mxfp6 Matrix Pflops—10.1
NVLink bandwidth (GB/s)900—
Pcie GEN—5
Process Node NM—3
Successor Cdna Version—5
Successor Family—AMD Instinct MI400 Series (MI455X)
Successor Launch—2026-07-23
Successor Mi455x Bandwidth TB S—23.3
Successor Mi455x Hbm4 GB—432
TBP Watts—1,400
TDP max (W)↓ better700—
TF32 TFLOPS (sparse)989—