AWS Trainium2

The chip behind Project Rainier: 96 GiB of HBM, 1,299 FP8 TFLOPS per chip, 64 chips per Trn2 UltraServer and nearly 500,000 chips in the Rainier cluster that Anthropic uses to build and deploy Claude. Sources and verification dates.

Memory96 GB
Bandwidth2.9 TB/s
FP81,299 TFLOPS
BF16667 TFLOPS
Largest pod64 chips
Owner Amazon Web Services Status Deployed US cloud

Verified

Open the primary source Compare side by side

Every published figure

Source per value
Owner The company that specified the chip and runs it in its own cloud, data centers or products.
Amazon Web Services 1
Role What the owner says the chip is for: training, inference, both, or a general-purpose server CPU.
Training and inference 1
Design partner The ASIC house that co-designed or physically implemented the chip (Broadcom, Marvell, MediaTek, Alchip, GUC and others), as stated by the owner, the partner, a filing or named trade-press reporting. 'In-house' when the owner states it designed the chip itself, including through an acquired team such as Annapurna Labs.
In-house (Annapurna Labs) 3
Memory On-package memory type (HBM2e, HBM3, HBM3E, LPDDR5) or, for CPUs, the memory the socket drives (DDR5).
HBM 1
Memory capacity GB On-package memory per chip in GB. Blank for CPUs, whose memory sits off-package.
96 1
Memory bandwidth TB/s Peak memory bandwidth per chip in TB/s, as published.
2.9 1
BF16 TFLOPS Published BF16 throughput per chip or accelerator module in TFLOPS. FP16 is a separate column. See the precision note for sparsity and module scope.
667 1
FP8 TFLOPS Published peak FP8 throughput per chip in TFLOPS. The precision note records sparsity where the owner states it. Blank when the owner gives no FP8 figure.
1,299 1
Precision note What the throughput figures mean: dense or sparse, which precision, per chip or per package, and any figure the owner states only in another unit.
Per chip: 1,299 FP8 TFLOPS and 667 BF16/FP16/TF32 TFLOPS. AWS lists 2,563 TFLOPS separately as sparse, not used here. 1
Largest pod chips The largest scale-up domain the owner states: chips per pod, UltraServer, supernode or rack joined by the chip-to-chip interconnect.
64 2
Status Announced: public roadmap without verified deployment. Sampling: first silicon or limited internal use. Preview: customers can request early access, without a GA claim. Deployed: stated production use or general availability. Discontinued: program stopped.
Deployed 2
Announced Year the owner first announced the chip publicly.
2,023 4
Deployment scale The largest deployment the owner or a named report states: chip counts, clusters, gigawatts or regions.
Project Rainier: nearly 500,000 Trainium2 chips live in October 2025; Anthropic’s Claude now runs on more than one million Trainium2 chips (Amazon). 2
How to get it How an outside buyer can use the chip: a named cloud instance or service, a product, or 'Internal only'.
AWS EC2 Trn2 instances and Trn2 UltraServers 2

Not verified in the sources reviewed: partner basis, foundry, node, fp16, mxfp8, mxfp4, mx8, mx4, int8, fp4, power.

Sources

  1. AWS Neuron docs: Trainium2 architecture accessed 2026-11-11
  2. Amazon: Project Rainier, one of the world's largest AI compute clusters accessed 2026-11-11
  3. Amazon: How Amazon became one of the world's top chip companies in a decade accessed 2026-11-11
  4. Amazon: AWS unveils Graviton4 and Trainium2, November 28, 2023 accessed 2026-11-11