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

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

Rig A

HPE / AMD · workstation

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Rig B

NVIDIA · workstation

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0 of 40 fields comparable

Spec	Frontier (OLCF-5)	NVIDIA DGX B200
Accelerator	AMD Instinct MI250X	—
Bluefield3 Dpus	—	2
Cabinets	74	—
Cores	9,066,176	—
CPU	AMD 3rd Gen EPYC 64C 2GHz	—
CPU Base GHZ	—	2.1
CPU Count	—	2
CPU MAX Boost GHZ	—	4
CPU Model	—	Intel Xeon Platinum 8570
FP4 Pflops Dense	—	72
FP4 Pflops Sparse	—	144
FP8 Pflops	—	72
Gpus	—	8
HBM Bandwidth TB S	—	64
Height MM	—	444
Installation Year	2,021	—
Interconnect	HPE Slingshot-11	—
Internal Storage TB	—	30.72
Length MM	—	897.1
Location	DOE/SC/Oak Ridge National Laboratory	—
Manufacturer	HPE	—
MAX Power KW	—	14.3
Model	HPE Cray EX235a	—
Networking Osfp Ports	—	4
Nvswitch Count	—	2
OS	—	NVIDIA DGX OS / Ubuntu
OS Storage TB	—	3.8
PER Port Gbps MAX	—	400
Power KW	24,607	—
Rack Units	—	10
Rmax Pflops	1,353	—
Rpeak Pflops	2,055.72	—
System Memory GB Default	—	2,048
System Memory GB MAX	—	4,096
Top500 Rank Jun2026	3	—
Top500 Rank Nov2025	2	—
Total CPU Cores	—	112
Total Hbm3e GB	—	1,440
Total Nvlink Bandwidth TB S	—	14.4
Width MM	—	482.2