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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

Anthropic Claude Opus 4.7

Anthropic · cloud-model

Change

Rig B

AMD Instinct MI355X

AMD · accelerator

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SpecAnthropic Claude Opus 4.7AMD Instinct MI355X
Bf16 Matrix Pflops Dense—2.5
Bf16 Matrix Pflops Sparse—5
Cache Discount Percent90—
Cache Read PER 1M USD0.5—
Claude Code Synergy Precision Bonus15—
Compute Units—256
Context Window Tokens M1—
Cooling—direct liquid cooling (air-cooled option available)
Current Opus ModelClaude Opus 5.5—
Current Opus Version5.5—
Form factor—OAM
Fp16 Matrix Pflops Dense—2.5
Fp16 Matrix Pflops Sparse—5
Fp32 Vector Tflops—157.3
Fp64 Matrix Tflops—78.6
FP8 Matrix Pflops Dense—5
FP8 Matrix Pflops Sparse—10.1
HBM (GB)—288
HBM Type—HBM3E
Helios Gpus PER Rack—72
Lifecycle Statuslegacy (still available)—
MAX Output Tokens K128—
Memory bandwidth (TB/s)—8
Mxfp4 Matrix Pflops—10.1
Mxfp6 Matrix Pflops—10.1
Pcie GEN—5
Pricing Input PER 1M USD5—
Pricing Output PER 1M USD25—
Process Node NM—3
Released2026-04-16—
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
TOP Listed ModelClaude Fable 5.1—
TOP Listed Model Version5.1—
Version Decimal4.7—
Version Major4—
Version Minor7—