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

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

Rig A

AWS · cloud-model

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Rig B

NVIDIA · workstation

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0 of 43 fields comparable

Spec	AWS Trainium2	NVIDIA RTX PRO 4500 Blackwell
AI Tops	—	1,687
Bandwidth GB S	—	896
Bf16 Tflops PER Chip	667	—
Chips PER Trn2 Instance	16	—
Chips PER Ultraserver	64	—
Cuda Cores	—	10,496
Displayport Count	—	4
Displayport Version	—	2.1
ECC	—	true
Form factor	—	4.4 in H x 10.5 in L, dual slot
FP8 Dense Petaflops PER Chip	1.3	—
FP8 Sparse Petaflops PER Chip	5.2	—
HBM Bandwidth TB S PER Chip	2.9	—
HBM Capacity GB PER Chip	96	—
HBM Type	HBM3	—
Lineup Lower Models	—	RTX PRO 4000, RTX PRO 2000
Memory BUS Bits	—	256
Neuroncores PER Chip	8	—
Nvdec Count	—	2
Nvdec GEN	—	6
Nvenc Count	—	2
Nvenc GEN	—	9
Pcie GEN	—	5
RT Cores	—	82
RT Cores GEN	—	4
RTX PRO 2000 MAX Power W	—	70
RTX PRO 4000 MAX Power W	—	145
Slot Width	—	2
TDP (W)↓ better	—	200
Tensor Cores	—	328
Tensor Cores GEN	—	5
Trainium3 GA	2025-12-02	—
Trainium3 HBM Bandwidth TB S	4.9	—
Trainium3 Hbm3e GB PER Chip	144	—
Trn2 Instance FP8 Petaflops	20.8	—
Trn2 Instance HBM TB	1.5	—
Trn3 Ultraserver FP8 Pflops	362	—
Trn3 Ultraserver MAX Chips	144	—
Ultraserver FP8 Petaflops	83.2	—
Ultraserver Total HBM Bandwidth TB S	185	—
Ultraserver Total HBM TB	6	—
VRAM (GB)	—	32
Vram Type	—	GDDR7 ECC