Chips · accelerators · AMD
AMD Instinct MI355X · Instinct MI350
1,786 gigaflops of dense BF16 compute per watt, at 1,400 W
Shipped the third quarter of 2025; shipped by the first date promised. 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
- 2,500 TFLOPS
Peak bfloat16 (BF16) Matrix Performance 2.5 PFLOPs
AMD Instinct MI355X product page (2.5 PFLOPS on the page) - FP8, dense
- 5,000 TFLOPS
Peak Open Compute Project Eight-bit Precision Matrix (OCP-FP8) Performance (E5M2, E4M3) 5 PFLOPs
AMD Instinct MI355X product page (5 PFLOPS on the page) - FP4, dense
- 10,100 TFLOPS
Peak Microscaling Four-bit Precision Matrix (MXFP4) Performance 10.1 PFLOPs
AMD Instinct MI355X product page (10.1 PFLOPS on the page) - Memory
- 288 GB
Dedicated Memory Size 288 GB
AMD Instinct MI355X product page - Memory bandwidth
- 8 TB/s
Peak Memory Bandwidth 8 TB/s
AMD Instinct MI355X product page - Maximum power
- 1,400 W
Typical Board Power (TBP) 1400W
AMD Instinct MI355X product page - Compute per watt
- 1,786 GFLOPS/Wdense BF16 over maximum power; 3,571 GFLOPS/W at FP8
AMD's promises name the MI350 Series, not the MI355X alone. No readable AMD page gives the MI355X first-shipment date; the record uses the Q3 2025 earnings release, which credits MI350 Series GPU sales for the quarter's data center revenue.
2 dated promises and the shipment
each date links to the page it is quoted from- 2 Jun 2024 Promised MI350 Series (CDNA 4) expected in 2025.
The next-generation AMD CDNATM 4 architecture, expected in 2025, will power the AMD Instinct MI350 Series
AMD Computex 2024 press release - 10 Oct 2024 Promised MI350 Series availability in the second half of 2025.
The AMD Instinct MI350 series accelerators are on track to be available during the second half of 2025
AMD Instinct MI325X launch press release - the third quarter of 2025 Shipped: Q3 2025 data center revenue driven by MI350 Series GPU sales (the series includes the MI355X).
Data Center segment revenue was $4.3 billion, up 22% year-over-year primarily driven by strong demand for 5th Gen AMD EPYCTM processors and AMD Instinct MI350 Series GPUs
AMD third quarter 2025 financial results, 8-K exhibit 99.1
Named at no AI data center Epoch AI tracks
H100-equivalents and power are the whole site’s today, with every chip it holdsIn no GPU cluster of Epoch AI’s list
Epoch AI’s list of AI supercomputers, which stops in July 2025Other AMD chips
- Instinct MI250X 684 gigaflops of dense BF16 compute per watt, at 560 W
- Instinct MI300X 1,733 gigaflops of dense BF16 compute per watt, at 750 W
- Instinct MI300A 1,290 gigaflops of dense BF16 compute per watt, at 760 W
- Instinct MI325X 1,300 gigaflops of dense BF16 compute per watt, at 1,000 W
- AMD’s own pages, each linked beside the figure or date it gives. Each page was read and each quote checked on 23 Oct 2026.
- Where it runs: Epoch AI, AI data centers and Epoch AI, GPU clusters, CC BY 4.0.