Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

Rig A

Intel / HPE · workstation

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Rig B

AMD · accelerator

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0 of 38 fields comparable

Spec	Aurora	AMD Instinct MI355X
Accelerator	Intel Data Center GPU Max	—
Architecture	HPE Cray EX with Intel Exascale Compute Blade	—
Bf16 Matrix Pflops Dense	—	2.5
Bf16 Matrix Pflops Sparse	—	5
Compute Units	—	256
Cooling	—	direct liquid cooling (air-cooled option available)
Cores	9,264,128	—
CPU	Intel Xeon CPU Max 9470 52C 2.4GHz	—
Form factor	—	OAM
Fp16 Matrix Pflops Dense	—	2.5
Fp16 Matrix Pflops Sparse	—	5
Fp32 Vector Tflops	—	157.3
Fp64 Matrix Tflops	—	78.6
FP8 Matrix Pflops Dense	—	5
FP8 Matrix Pflops Sparse	—	10.1
HBM (GB)	—	288
HBM Type	—	HBM3E
Helios Gpus PER Rack	—	72
Installation Year	2,023	—
Interconnect	HPE Slingshot-11	—
Location	DOE/SC/Argonne National Laboratory	—
Manufacturer	Intel / HPE	—
Memory bandwidth (TB/s)	—	8
Mxfp4 Matrix Pflops	—	10.1
Mxfp6 Matrix Pflops	—	10.1
Pcie GEN	—	5
Power KW	38,698.36	—
Process Node NM	—	3
Rmax Pflops	1,012	—
Rpeak Pflops	1,980.01	—
Successor Cdna Version	—	5
Successor Family	—	AMD Instinct MI400 Series (MI455X)
Successor Launch	—	2026-07-23
Successor Mi455x Bandwidth TB S	—	23.3
Successor Mi455x Hbm4 GB	—	432
TBP Watts	—	1,400
Top500 Rank Jun2026	4	—
Top500 Rank Nov2025	3	—