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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.

0 of 23 fields comparable

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SpecCerebras Wafer-Scale Engine 3Alibaba Qwen2.5-72B-Instruct (Q4 quant)
Context Window Tokens K—128
Cores900,000—
CS4 Introduced2026-08-18—
CS4 Wse3 Turbo Count3—
DIE Size MM246,225—
Dual Card Count—2
Dual Card Vram GB—24
Fabric Bandwidth Pbit S214—
GPT Version—5
Memory Bandwidth PB S21—
ON Chip Sram GB44—
Parameter Count B—72
Peak AI Petaflops125—
Process NodeTSMC 5nm—
Qwen Version—3
Qwen25 72B Instruct—Qwen2.5-72B-Instruct
Qwen25 Version—2.5
Qwen3 Largest Dense Checkpoint B—32
RTX 5090 Pairing Vram GB—32
Status Checked—2026-09-24
Transistors Trillion4—
Vram Required GB—44
Wse3 Turbo Peak AI Petaflops250—