Skip to content
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 29 fields comparable

⇄ swap sides
SpecSambaNova SN40L Reconfigurable Dataflow UnitEl Capitan
Accelerator—AMD Instinct MI300A (APU)
Bf16 Tflops PER Socket638—
Cores—11,340,000
CPU—AMD 4th Gen EPYC 24C 1.8GHz
Current Family ListedSN50, SN40—
DDR Bandwidth GB S200—
Ddr5 Capacity TB1.5—
HBM Bandwidth TB S1.8—
Hbm3 Capacity GB64—
Hpcg Tflops—17,406
Installation Year—2,024
Interconnect—HPE Slingshot-11
Location—DOE/NNSA/Lawrence Livermore National Laboratory
Manufacturer—HPE
Model—HPE Cray EX255a
ON Chip Sram MB520—
Packaging3x CoWoS-S, 2 accelerator dies—
Pattern Compute Units1,040—
Power KW—29,684.62
Process NodeTSMC 5nm—
Rmax Pflops—1,809
Rpeak Pflops—2,821.1
Status Checked2026-09-24—
SuccessorSN50 (fifth-generation RDU)—
Successor Introduced2026-02-24—
Top500 Jun2026 NO1—LineShine (National Supercomputing Centre in Shenzhen, China)
Top500 Rank Jun2026—2
Top500 Rank Nov2024—1
Top500 Rank Nov2025—1