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

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

Rig A

NVIDIA · workstation

Change

Rig B

AMD · accelerator

Change

0 of 45 fields comparable

Spec	NVIDIA GB200 NVL72	AMD Instinct MI355X
Bf16 Matrix Pflops Dense	—	2.5
Bf16 Matrix Pflops Sparse	—	5
Blackwell Gpus	72	—
Compute Trays	18	—
Compute Units	—	256
Cooling	liquid	direct liquid cooling (air-cooled option available)
CPU Memory Bandwidth TB S	14	—
CPU Memory Lpddr5x TB	17	—
Form factor	—	OAM
Fp16 Bf16 Pflops	360	—
Fp16 Matrix Pflops Dense	—	2.5
Fp16 Matrix Pflops Sparse	—	5
FP32 TFLOPS	5,760	—
Fp32 Vector Tflops	—	157.3
Fp64 Matrix Tflops	—	78.6
FP64 TFLOPS	2,880	—
FP8 FP6 Pflops	720	—
FP8 Matrix Pflops Dense	—	5
FP8 Matrix Pflops Sparse	—	10.1
GPU Memory Bandwidth TB S	576	—
Grace Cpus	36	—
HBM (GB)	—	288
HBM Type	—	HBM3E
Helios Gpus PER Rack	—	72
Int8 Pops	720	—
Memory bandwidth (TB/s)	—	8
Mxfp4 Matrix Pflops	—	10.1
Mxfp6 Matrix Pflops	—	10.1
Nvfp4 Pflops Dense	720	—
Nvfp4 Pflops Sparse	1,440	—
Nvlink Generation	5	—
Nvswitch Trays	9	—
Pcie GEN	—	5
Process Node NM	—	3
Rack Power KW Approx	120	—
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
Tf32 Pflops	180	—
Total ARM Cores	2,592	—
Total Hbm3e TB	13.4	—
Total Nvlink Bandwidth TB S	130	—