#mi455x — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #mi455x, aggregated by home.social.
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We are taking a deep dive look into AMD's Instinct MI455X accelerator and its CDNA 5 architecture, the backbone of AMD's next-gen AI server offerings and their massive Helios rackscale system#amd #CDNA5 #HBM4 #Helios #Instinct #MI455X #UALink #UltraAcceleratorLink
AMD Instinct MI455X Deep Dive: CDNA 5 Marks The Next Era of Instinct -
RT @SebAaltonen: Die AMD MI4555X scheint großartig zu sein: 40 Petaflops MXFP6 (gemeinsamer Exponent → Qualität nahe an fp8). 432 GB RAM mit ~20 TB/s. MXFP6-quantisiertes Kimi K3 sollte auf 6 GPUs passen. Das sind rund 300.000 US-Dollar für unbegrenzte Frontier-Modell-Token für etwa 10 Entwickler… videocardz.com/newz/amd-inst… Link AMD Instinct MI455X GPU: 432 GB HBM4 und 23,3 TB/s Speicherbandbreite - VideoCardz.com Die neue Instinct-GPU verwendet ein Chiplet-Paket mit zwei Fabric-Dies und zwei I/O-Dies. Die maximale Speicherbandbreite beträgt 23,3 TB/s. videocardz.com
mehr auf Arint.info
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RT @SebAaltonen: Die AMD MI4555X sieht vielversprechend aus: 40 Petaflops mit MXFP6 (gemeinsamer Exponent → Qualität nahe an FP8). 432 GB RAM mit ~20 TB/s Bandbreite. MXFP6-quantisiertes Kimi K3 sollte auf 6 GPUs Platz finden. Das entspricht etwa 300.000 US-Dollar für unbegrenzte Frontier-Modell-Token für ca. 10 Entwickler… videocardz.com/newz/amd-inst… Link: AMD Instinct MI455X GPU – 432 GB HBM4 und 23,3 TB/s Speicherbandbreite – VideoCardz.com. Die neue Instinct-GPU nutzt ein Chiplet-Paket mit zwei Fabric-Dies und zwei I/O-Dies. Die maximale Speicherbandbreite beträgt 23,3 TB/s. videocardz.com
mehr auf Arint.info
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#AMD Says “#Helios” Racks And #MI400 Series #GPU On Track For 2H 2026
AMD has been working on the Open Rack Wide v3 specification, a double-wide rack that AMD calls “Helios” and that is the platform for delivering #rackscale compute based on the “Altair” MI400 series GPU accelerators. This series includes the #MI450, #MI430X, and the #MI455X for the Helios rackscale systems, which will have 64, 72, or 128 GPUs per system, and possibly MI440X for eight-way system nodes.
https://www.nextplatform.com/2026/02/23/amd-says-helios-racks-and-mi400-series-gpus-on-track-for-2h-2026/ -
#AMD threatens to go medieval on Nvidia with #Epyc and #Instinct: What we know so far
AMD teased its next-generation #AI accelerators at #CES2026, with CEO Lisa Su boasting the #MI500-series will deliver a 1,000x uplift in performance over its two-year-old #MI300X #GPU.
if AMD wants to stay competitive with Nvidia, MI500-series will need to deliver performance on par with if not better than Rubin Ultra Kyber racks.
AMD joins the #rackscale race with #MI455X #Helios racks.
https://www.theregister.com/2026/01/07/mi500x_amd_ai/ -
#AMD touts Instinct #MI430X, #MI440X, and #MI455X #AI accelerators and #Helios #rackscale AI architecture at CES — full MI400-series family fulfills a broad range of infrastructure and customer requirements
The newly disclosed MI440X and MI455X are set to be optimized for low-precision workloads, such as FP4, FP8, & BF16. The previously disclosed MI430X targets both sovereign AI and #HPC thus fully supports FP32 and FP64 technical computing and traditional #supercomputing
https://www.tomshardware.com/tech-industry/artificial-intelligence/amd-touts-instinct-mi430x-mi440x-and-mi455x-ai-accelerators-and-helios-rack-scale-ai-architecture-at-ces-full-mi400-series-family-fulfills-a-broad-range-of-infrastructure-and-customer-requirements -
#HPE to ship #rackscale #AI system using #AMD's #Helios in #2026
Announced ahead of HPE's Discover event in Barcelona this week. Helios is intended to operate a rack full of nodes fitted with accelerators as if they were one single large #GPU, like Nvidia's DGX GB200 NVL72 system, to which Helios is pitched as a rival. Helios will be a vehicle for its next-generation Instinct #MI455X GPUs and its 6th-gen Epyc CPUs, codenamed Venice, both of which are due next year.
https://www.theregister.com/2025/12/02/hpe_amd_helios_racks/