The Architecture Instruction Set Extensions Programming Reference, Revision 063, has been leaked, confirming Intel's next-generation processor iteration roadmap.
The document details the CPUID identification codes for the consumer-grade processors codenamed Razor Lake and the Coral Rapids server processors, suggesting that both architectures have entered substantive development stages.
According to Intel's current roadmap, Razor Lake will succeed Nova Lake, becoming the main architecture for the desktop and laptop markets around 2028. Meanwhile, Coral Rapids is positioned as the next-generation Xeon server platform following Diamond Rapids.
Simply put, the CPUID identification code is a key basis for software to identify processor identity and supported features. This disclosure means that the underlying software ecosystem has begun early adaptation for these "future-proof" hardware components.
Regarding platform segmentation, the CPUID identification code patterns for the Razor Lake desktop version are 300F6x and 300FAx, while the laptop version uses 300F7x and 300F9x.
Notably, previous reports indicate that the Razor Lake-S desktop series will continue to use the LGA 1954 socket, which is undoubtedly good news for hardware enthusiasts hoping for a longer platform lifespan.
The server-side Coral Rapids has an independent identification code of 400F8x, indicating a clear distinction in architectural design from consumer-grade products.
In terms of technical features, Razor Lake introduces a security function called SSBD_PSFD_U_S, which provides more granular user-mode and kernel-mode control for specific speculative execution memory operations.
Furthermore, the new architecture supports APIC-Timer virtualization technology, a hardware solution that optimizes the efficiency of timer event handling in virtual machine environments.
Currently, this document primarily serves software developers and does not include specific data on clock speeds, core counts, or actual performance benchmarks.
Since it is still early before the expected 2028 launch, there remain many variables regarding Razor Lake's final retail naming, manufacturing process, and specific GPU pairing solutions.