Chips · accelerators · AMD

AMD Instinct MI325X · Instinct MI300

1,300 gigaflops of dense BF16 compute per watt, at 1,000 W

Promised for the fourth quarter of 2024; past its date, no dated shipment on record. Epoch AI names it at no AI data center and no GPU cluster.

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Each figure in AMD’s own words

one chip, dense compute; memory is high-bandwidth memory
BF16, dense
1,300 TFLOPS Peak bfloat16 1.3 PFLOPs AMD Instinct MI325X product page (1.3 PFLOPS on the page)
FP8, dense
2,610 TFLOPS Peak Eight-bit Precision (FP8) Performance (E5M2, E4M3) 2.61 PFLOPs AMD Instinct MI325X product page (2.61 PFLOPS on the page)
Memory
256 GB Dedicated Memory Size 256 GB AMD Instinct MI325X product page
Memory bandwidth
6 TB/s Peak Memory Bandwidth 6 TB/s AMD Instinct MI325X product page
Maximum power
1,000 W Typical Board Power (TBP) 1000W AMD Instinct MI325X product page
Compute per watt
1,300 GFLOPS/Wdense BF16 over maximum power; 2,610 GFLOPS/W at FP8

No readable AMD page or filing states that MI325X production shipments started; AMD's earnings releases for Q4 2024 to Q2 2025 do not name the MI325X, so delivered is left empty. The June 2024 announcement gave 288GB of memory; the shipped part has 256 GB.

3 dated promises

each date links to the page it is quoted from
  1. 2 Jun 2024 Promised availability in the fourth quarter of 2024. The expanded roadmap includes the AMD Instinct MI325X accelerators, with planned availability in Q4 2024 AMD Computex 2024 press release
  2. 30 Jul 2024 Promised availability in the fourth quarter of 2024. The roadmap includes the new AMD Instinct MI325X accelerator, planned to be available in Q4 2024 AMD second quarter 2024 financial results, 8-K exhibit 99.1
  3. 10 Oct 2024 Promised production shipments in the fourth quarter of 2024. AMD Instinct MI325X accelerators are currently on track for production shipments in Q4 2024 AMD Instinct MI325X launch press release

Named at no AI data center Epoch AI tracks

H100-equivalents and power are the whole site’s today, with every chip it holds

In no GPU cluster of Epoch AI’s list

Epoch AI’s list of AI supercomputers, which stops in July 2025

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