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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 MI355XThe Stargate Project
Abilene Trained Model—GPT-5.5
Abilene Trained Model Version—5.5
Bf16 Matrix Pflops Dense2.5—
Bf16 Matrix Pflops Sparse5—
Capacity Added Prior 90 Days GW MIN—3
Capacity Added Window Days—90
Capacity Update Date—2026-04-29
Compute Units256—
Coolingdirect liquid cooling (air-cooled option available)—
Custom Silicon Announced—Broadcom (10 GW)
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—
HBM (GB)288—
HBM TypeHBM3E—
Helios Gpus PER Rack72—
Memory bandwidth (TB/s)8—
Mxfp4 Matrix Pflops10.1—
Mxfp6 Matrix Pflops10.1—
Oracle Partnership GW—5
Partners—OpenAI, SoftBank, Oracle, MGX
Pcie GEN5—
Planned Capacity GW 2025—7
Planned Chip Count Million—2
Primary Accelerator Announced—NVIDIA GB200 (initial Oracle racks)
Primary Site—Abilene, Texas
Process Node NM3—
Secondary Accelerator Announced—AMD Instinct (up to 6 GW)
Secured Capacity Commitment Deadline Year—2,029
Secured Capacity Commitment GW—10
Status Checked—2026-09-24
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—
Total Planned Investment USD Billion—400