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

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

Rig A

AMD · accelerator

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Rig B

NVIDIA · workstation

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0 of 51 fields comparable

Spec	AMD Instinct MI355X	NVIDIA DGX B200
Bf16 Matrix Pflops Dense	2.5	—
Bf16 Matrix Pflops Sparse	5	—
Bluefield3 Dpus	—	2
Compute Units	256	—
Cooling	direct liquid cooling (air-cooled option available)	—
CPU Base GHZ	—	2.1
CPU Count	—	2
CPU MAX Boost GHZ	—	4
CPU Model	—	Intel Xeon Platinum 8570
Form factor	OAM	—
Fp16 Matrix Pflops Dense	2.5	—
Fp16 Matrix Pflops Sparse	5	—
Fp32 Vector Tflops	157.3	—
FP4 Pflops Dense	—	72
FP4 Pflops Sparse	—	144
Fp64 Matrix Tflops	78.6	—
FP8 Matrix Pflops Dense	5	—
FP8 Matrix Pflops Sparse	10.1	—
FP8 Pflops	—	72
Gpus	—	8
HBM (GB)	288	—
HBM Bandwidth TB S	—	64
HBM Type	HBM3E	—
Height MM	—	444
Helios Gpus PER Rack	72	—
Internal Storage TB	—	30.72
Length MM	—	897.1
MAX Power KW	—	14.3
Memory bandwidth (TB/s)	8	—
Mxfp4 Matrix Pflops	10.1	—
Mxfp6 Matrix Pflops	10.1	—
Networking Osfp Ports	—	4
Nvswitch Count	—	2
OS	—	NVIDIA DGX OS / Ubuntu
OS Storage TB	—	3.8
Pcie GEN	5	—
PER Port Gbps MAX	—	400
Process Node NM	3	—
Rack Units	—	10
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	—
System Memory GB Default	—	2,048
System Memory GB MAX	—	4,096
TBP Watts	1,400	—
Total CPU Cores	—	112
Total Hbm3e GB	—	1,440
Total Nvlink Bandwidth TB S	—	14.4
Width MM	—	482.2