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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 GH200 Grace Hopper
Bf16 Matrix Pflops Dense2.5—
Bf16 Matrix Pflops Sparse5—
Compute Units256—
Coolingdirect liquid cooling (air-cooled option available)—
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—
Grace CPU Arch—Arm Neoverse V2
Grace CPU Cores—72
HBM (GB)288—
HBM GB Hbm3—96
HBM GB Hbm3e—144
HBM TypeHBM3E—
Hbm3e Bandwidth TB S—4.9
Helios Gpus PER Rack72—
Lpddr5x GB MAX—480
Memory bandwidth (TB/s)8—
Mxfp4 Matrix Pflops10.1—
Mxfp6 Matrix Pflops10.1—
Nvl2 AI Petaflops—8
Nvl2 Combined Bandwidth TB S—10
Nvl2 Total Hbm3e GB—282
Nvl2 Total Memory TB—1.2
Nvlink C2C Bandwidth GB S—900
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—
TBP Watts1,400—
TDP Watts MAX Unverified—1,000