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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 3SambaNova SN40L Reconfigurable Dataflow Unit
Bf16 Tflops PER Socket—638
Cores900,000—
CS4 Introduced2026-08-18—
CS4 Wse3 Turbo Count3—
Current Family Listed—SN50, SN40
DDR Bandwidth GB S—200
Ddr5 Capacity TB—1.5
DIE Size MM246,225—
Fabric Bandwidth Pbit S214—
HBM Bandwidth TB S—1.8
Hbm3 Capacity GB—64
Memory Bandwidth PB S21—
ON Chip Sram GB44—
ON Chip Sram MB—520
Packaging—3x CoWoS-S, 2 accelerator dies
Pattern Compute Units—1,040
Peak AI Petaflops125—
Process NodeTSMC 5nmTSMC 5nm
Status Checked—2026-09-24
Successor—SN50 (fifth-generation RDU)
Successor Introduced—2026-02-24
Transistors Trillion4—
Wse3 Turbo Peak AI Petaflops250—