Side-by-side, with the numbers that matter.
Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.
Rig A
AMD Instinct MI355X
AMD · accelerator
Change
- 1X Neo
- Agility Robotics Digit
- Alibaba Qwen2.5-72B-Instruct (Q4 quant)
- AMD Instinct MI300X
- AMD Instinct MI325X
- AMD Instinct MI355X
- Anthropic Claude Opus 4.7
- Apple Mac Pro (M2 Ultra, 2023)
- Apple Mac Studio (M3 Ultra)
- Apple MacBook Pro 16-inch, M4 Max (2024)
- Apptronik Apollo
- Aurora
- AWS Trainium2
- Boston Dynamics Atlas
- Boston Dynamics Spot
- Cerebras Wafer-Scale Engine 3
- El Capitan
- Figure 02
- Frontier (OLCF-5)
- Google Cloud TPU v5p
- Groq Language Processing Unit
- Intel Gaudi 3 HL-325L
- MSI GeForce RTX 5090 Suprim Liquid
- NVIDIA B100
- NVIDIA B200
- NVIDIA DGX B200
- NVIDIA DGX H200
- NVIDIA DGX Spark
- NVIDIA Eos DGX SuperPOD
- NVIDIA GB200
- NVIDIA GB200 NVL72
- NVIDIA GeForce RTX 4090 Founders Edition
- NVIDIA GeForce RTX 5070 Ti
- NVIDIA GeForce RTX 5080 Founders Edition
- NVIDIA GeForce RTX 5090 Founders Edition
- NVIDIA GH200 Grace Hopper
- NVIDIA H100
- NVIDIA H200
- NVIDIA HGX B200
- NVIDIA Jetson AGX Thor
- NVIDIA RTX PRO 4500 Blackwell
- NVIDIA RTX PRO 5000 Blackwell
- NVIDIA RTX PRO 6000 Blackwell
- OpenAI GPT-5
- SambaNova SN40L Reconfigurable Dataflow Unit
- Sanctuary AI Phoenix
- Tesla Optimus
- The Stargate Project
- Unitree B2
- Unitree G1
- Unitree H1
Rig B
OpenAI GPT-5
OpenAI · cloud-model
Change
- 1X Neo
- Agility Robotics Digit
- Alibaba Qwen2.5-72B-Instruct (Q4 quant)
- AMD Instinct MI300X
- AMD Instinct MI325X
- AMD Instinct MI355X
- Anthropic Claude Opus 4.7
- Apple Mac Pro (M2 Ultra, 2023)
- Apple Mac Studio (M3 Ultra)
- Apple MacBook Pro 16-inch, M4 Max (2024)
- Apptronik Apollo
- Aurora
- AWS Trainium2
- Boston Dynamics Atlas
- Boston Dynamics Spot
- Cerebras Wafer-Scale Engine 3
- El Capitan
- Figure 02
- Frontier (OLCF-5)
- Google Cloud TPU v5p
- Groq Language Processing Unit
- Intel Gaudi 3 HL-325L
- MSI GeForce RTX 5090 Suprim Liquid
- NVIDIA B100
- NVIDIA B200
- NVIDIA DGX B200
- NVIDIA DGX H200
- NVIDIA DGX Spark
- NVIDIA Eos DGX SuperPOD
- NVIDIA GB200
- NVIDIA GB200 NVL72
- NVIDIA GeForce RTX 4090 Founders Edition
- NVIDIA GeForce RTX 5070 Ti
- NVIDIA GeForce RTX 5080 Founders Edition
- NVIDIA GeForce RTX 5090 Founders Edition
- NVIDIA GH200 Grace Hopper
- NVIDIA H100
- NVIDIA H200
- NVIDIA HGX B200
- NVIDIA Jetson AGX Thor
- NVIDIA RTX PRO 4500 Blackwell
- NVIDIA RTX PRO 5000 Blackwell
- NVIDIA RTX PRO 6000 Blackwell
- OpenAI GPT-5
- SambaNova SN40L Reconfigurable Dataflow Unit
- Sanctuary AI Phoenix
- Tesla Optimus
- The Stargate Project
- Unitree B2
- Unitree G1
- Unitree H1
0 of 32 fields comparable
⇄ swap sides| Spec | AMD Instinct MI355X | OpenAI GPT-5 |
|---|---|---|
| Bf16 Matrix Pflops Dense | 2.5 | — |
| Bf16 Matrix Pflops Sparse | 5 | — |
| Codex Synergy Precision Bonus | — | 12 |
| Compute Units | 256 | — |
| Cooling | direct liquid cooling (air-cooled option available) | — |
| 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 | — |
| Gpt5 Context Window Tokens K | — | 400 |
| Gpt5 Input PER 1M USD | — | 1.25 |
| Gpt5 Output PER 1M USD | — | 10 |
| Gpt5 Snapshot | — | gpt-5-2025-08-07 |
| Gpt6 Astra Launch | — | 2026-09-03 |
| HBM (GB) | 288 | — |
| HBM Type | HBM3E | — |
| Helios Gpus PER Rack | 72 | — |
| Memory bandwidth (TB/s) | 8 | — |
| Mxfp4 Matrix Pflops | 10.1 | — |
| Mxfp6 Matrix Pflops | 10.1 | — |
| Pcie GEN | 5 | — |
| Process Node NM | 3 | — |
| 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 | — |
| Version Major | — | 5 |