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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 27 fields comparable

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SpecFrontier (OLCF-5)SambaNova SN40L Reconfigurable Dataflow Unit
AcceleratorAMD Instinct MI250X—
Bf16 Tflops PER Socket—638
Cabinets74—
Cores9,066,176—
CPUAMD 3rd Gen EPYC 64C 2GHz—
Current Family Listed—SN50, SN40
DDR Bandwidth GB S—200
Ddr5 Capacity TB—1.5
HBM Bandwidth TB S—1.8
Hbm3 Capacity GB—64
Installation Year2,021—
InterconnectHPE Slingshot-11—
LocationDOE/SC/Oak Ridge National Laboratory—
ManufacturerHPE—
ModelHPE Cray EX235a—
ON Chip Sram MB—520
Packaging—3x CoWoS-S, 2 accelerator dies
Pattern Compute Units—1,040
Power KW24,607—
Process Node—TSMC 5nm
Rmax Pflops1,353—
Rpeak Pflops2,055.72—
Status Checked—2026-09-24
Successor—SN50 (fifth-generation RDU)
Successor Introduced—2026-02-24
Top500 Rank Jun20263—
Top500 Rank Nov20252—