Intel's Diamond Rapids Xeon Slips to 2027 With 512 Cores and 16-Channel Memory, Coral Rapids Brings Back SMT in 2028 1

Intel’s Next Xeon Chapter: Diamond Rapids Delayed to 2027 With 512 Cores and 16-Channel Memory, While 2028’s Coral Rapids Revives SMT

Intel’s server CPU roadmap is taking a notable turn, with fresh details suggesting that the next wave of Xeon processors will arrive later than originally expected—while also scaling to massive core counts designed for the future of data center computing.

The upcoming Intel Xeon “Diamond Rapids” family was once expected much sooner, but recent information points to a slip into 2027. The delay is being attributed to a mix of factors, including manufacturing yield challenges and a broader platform reshuffle that reportedly involved canceling an 8-channel line. The result is a clearer, if later, target: a mid-2027 release centered on a 16-channel platform aimed at high-end servers and multi-socket deployments.

What’s drawing the most attention is Diamond Rapids’ potential core count. The lineup is expected to start by scaling up to 256 cores, then climb as high as 512 cores shortly after the main 16-channel platform reaches volume availability. If this plays out, Diamond Rapids could become one of the most core-dense Xeon generations Intel has ever put into the data center market—positioning it for hyperscale workloads, virtualization, and AI-heavy server tasks that thrive on parallel processing.

Another key detail: Diamond Rapids is expected to be the final Xeon generation built around a non-SMT design, meaning it would not use simultaneous multithreading. Despite the lack of SMT, Intel is apparently leaning on new core architecture, with Diamond Rapids expected to use Panther Cove-X as its P-Core design.

Compatibility is also shaping up to be a major selling point. The standard Diamond Rapids 16-channel processors and the higher-core-count 512-core variants are expected to work on the same platform. In practical terms, that could allow data centers to upgrade to higher-core SKUs later without requiring a new socket or a full platform replacement—an important cost and deployment advantage for large server fleets.

On the platform side, Diamond Rapids is rumored to introduce two new tiles, including a compute tile described as a “Core Building Block.” One noteworthy architectural change is that Intel is expected to separate the integrated memory controller rather than keeping it on the same tile as compute, a different approach compared to some prior designs. Early platform talk also points to extremely high power envelopes, with figures up to 650W TDP being mentioned for the LGA 9324 platform, along with multi-socket support—clearly aimed at top-tier enterprise and cloud environments.

Looking past Diamond Rapids, the next step is said to be “Coral Rapids,” currently targeted for mid-2028 on 8-channel platforms. The headline change there is the return of SMT on P-Cores, signaling Intel may be shifting strategies again to maximize throughput and efficiency per socket. There’s also speculation that Coral Rapids could be accelerated due to rising demand tied to agentic AI workloads—systems that rely on autonomous, multi-step reasoning and orchestration, often increasing pressure on both CPU compute and memory bandwidth.

Beyond these two generations, there’s growing chatter that Intel’s Xeon strategy could intersect more directly with the broader AI ecosystem, including work on custom x86 offerings and deeper integration opportunities as major players expand their CPU options across x86 and Arm. For anyone watching the data center CPU race, the next couple of years are shaping up to be pivotal, with Diamond Rapids’ platform shift, extreme core scaling, and Coral Rapids’ SMT return setting the stage for a new era of Xeon competition.