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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.

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SpecAMD Instinct MI355XNVIDIA DGX H200
Bf16 Matrix Pflops Dense2.5—
Bf16 Matrix Pflops Sparse5—
Compute Units256—
Coolingdirect liquid cooling (air-cooled option available)—
CPU—2x Intel Xeon Platinum 8480C
CPU Cores Total—112
Form factorOAM—
Fp16 Matrix Pflops Dense2.5—
Fp16 Matrix Pflops Sparse5—
Fp32 Vector Tflops157.3—
Fp64 Matrix Tflops78.6—
FP8 Matrix Pflops Dense5—
FP8 Matrix Pflops Sparse10.1—
FP8 Petaflops—32
GPU Count—8
GPU Model—H200 SXM
HBM (GB)288—
HBM TypeHBM3E—
Helios Gpus PER Rack72—
Internal Storage—8x 3.84TB NVMe U.2
MAX Power KW—10.2
Memory bandwidth (TB/s)8—
Mxfp4 Matrix Pflops10.1—
Mxfp6 Matrix Pflops10.1—
Network MAX Gbps PER Port—400
Network Peak TB S—1
Network Ports—8x ConnectX-7 single-port (4x OSFP)
Nvlink PER GPU Bandwidth GB S—900
Nvswitch Bandwidth TB S—7.2
Nvswitch Count—4
OS Storage—2x 1.92TB NVMe M.2
Pcie GEN5—
Process Node NM3—
Successor Cdna Version5—
Successor FamilyAMD Instinct MI400 Series (MI455X)—
Successor Launch2026-07-23—
Successor Mi455x Bandwidth TB S23.3—
Successor Mi455x Hbm4 GB432—
System Memory TB—2
TBP Watts1,400—
Total GPU Memory GB—1,128