Leak: Intel Hammer Lake brings 'Thunder Hawk' unified cores to desktop, also revives multithreading

Moore's Law Is Dead (MLID) has detailed a handful of Intel's major client CPU families through the end of the decade. The leaker claims that Intel is phasing out traditional hybrid layouts in favor of a unified-core strategy, starting with Titan Lake, scaling to the desktop with Hammer Lake, and adding back Hyper-Threading. Tucked inside the leak are also new details on Intel's upcoming high-end mobile family featuring integrated RTX graphics tiles from NVIDIA.

Titan Lake is not a direct successor to Razor Lake, but it is allegedly an intermediary and experimental platform exclusive to the mobile segment. Per MLID, Titan Lake will fill up the U/P/PX/B/BX designations. Among these, U ,P, and PX refer to mobile offerings with an Arc integrated GPU featuring up to 16 Xe3P cores, and a Titan Lake CPU die with up to 12 (8+4) Copper Shark unified cores and 4 Arctic Wolf LPE cores.

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It is believed that, much like AMD's dense C-cores, Intel will feature Copper Shark P and Copper Shark E variants. The unified "E" cores are simply denser, area-optimized versions of the exact same underlying architecture. According to industry rumors, the engineering shift behind Intel's unified core initiative aligns its design philosophy more closely with the E-core lineage than with the historical P-core team.

Each designation has a slightly tweaked GPU and CPU configuration, though we're unable to make out the finer details due to the low-quality image. The HUB tile reportedly packs 4 Low-Power-Efficient cores based on the Arctic Wolf architecture. Interestingly, there is mention of support for 192-bit LPDDR6 memory alongside 128-bit DDR5 across all variants. These CPUs are expected to slot in the H6-Package, which is said to be compatible with future Hammer Lake mobile products.

Variants with an NVIDIA RTX GPU chiplet fall under both the Titan Lake-B/BX and Serpent Lake designations and reportedly feature Memory on Package (MoP), as in Razor Lake-AX. These models are rumored to use an older-generation Razor Lake CPU tile with Griffin Cove P-cores and Arctic Wolf/Golden Eagle E-cores to ensure smoother integration. The flagship 'BX' variant, as far as can be seen, supports up to an 8P+16E+4LPE (28 hybrid cores) configuration, with an NVIDIA GPU classified as "Large".

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Hammer Lake is expected to launch after Titan Lake as a key architectural transition to both mobile and desktop, featuring Intel's second-generation unified Thunder Lake cores.

According to MLID, Hammer Lake mainstream tiers like Core Ultra 3 and 5 will feature only P-Cores, dropping E-Cores from much of the mainstream desktop lineup. That being said, dense cores will reportedly continue to be used in laptops for area efficiency and in high-core-count chips that aim for maximum multi-threading performance. The biggest change, however, is the alleged return of SMT (Hyper-Threading) with Thunder Hawk, something that CEO Lip-Bu Tan reaffirmed last year.

Moreover, leaked slides show that Hammer Lake will continue to use DDR5. Whether this means a hybrid memory controller like Alder Lake or a DDR5-only platform, we're uncertain.

While the leaker shared no additional details about Hammer Lake, it is reported that Nova Lake, Razor Lake, and Hammer Lake will all use the LGA 1954 desktop socket. This three-generation compatibility may finally address consumer frustration with Intel's historically short motherboard platform lifecycles.