AMD's next-gen Instinct MI400 series recently came under fire after it was reported that the lineup is being pushed ahead, but the company's executive has denied it.
AMD's Instinct MI455X Faces Challenges With N2 Integration, But Team Red is Confident in Its H2 2026 Deployment
When it comes to the race for the best hardware for hyperscalers, NVIDIA has been leading for quite a few generations, and we saw the gap widen with the Blackwell generation. However, with AMD's Instinct MI400 series, particularly the MI455X, Team Red believes customers will have no 'argument left' not to pivot away from NVIDIA, given the architectural advancements. However, a SemiAnalysis report disclosed that the MI455X would see large-scale customer deployments with almost a year's delay, but AMD's Corporate VP of Software Development, Anush Elangovan, has denied the claims.
SemiAnalysis doesn't specifically highlight the reasons behind the delay, but according to Dylan Patel, AMD is facing challenges with N2 integration, which is why engineering samples are on track for H2 2026, but proper token production won't come before Q2 2027. As we understand it, AMD might face challenges migrating from traditional FinFET to GAA with N2, as it introduces microscopic manufacturing defects, leading to low-volume production at the start. Another major challenge with Team Red would be managing the scale-out (UALink) interconnect with the new N2 GAA structures, as line resistance and capacitance become major issues.
Yet again, on paper, AMD is on track for MI455X customer deployment in the upcoming quarters, but Dylan from SemiAnalysis is sure it will be pushed to Q2 2027. At the same time, NVIDIA's Vera Rubin is on track for hyperscaler integration by H2 2026, which means that if delay rumors turn out to be true for AMD, NVIDIA would yet again be the first ones to offer the next generation of infrastructure technology, giving Team Red a market that becomes much more competitive, once MI455X makes its debut.
AMD has been struggling to break into the infrastructure segment, with adoption lagging NVIDIA's, given that the company has faced several challenges in the past few quarters, including volume, ROCm disparities, and, of course, NVIDIA racing first to customer commitments. The Instinct MI455X is indeed a solid offering on paper, but it would be interesting to see how the timeline from sampling to deployment turns out to be.
About the author: Muhammad Zuhair is a hardware and technology reporter for Wccftech, specializing in the semiconductor industry and the complex interplay between technology, manufacturing, and geopolitics. His coverage focuses on the corporate strategies and technological roadmaps of industry giants like TSMC, NVIDIA, Samsung, and Intel. Zuhair's expertise lies in deconstructing complex topics such as fabrication nodes (e.g., 2nm process), the economic impact of policies like the CHIPS Act, and the strategic development of AI infrastructure from NVIDIA, AMD and Intel.
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