Intel's upcoming Nova Lake-S desktop processors are currently in testing with both AVX-512 and APX instruction sets enabled, marking a significant return of advanced vector processing to consumer hardware. Two SKUs have been spotted in testing: a 24-core model at 3.4 GHz and a 28-core model at 3.2 GHz, both powered by "Coyote Cove" P-Cores and "Arctic Wolf" E-Cores. This development aligns with Intel's 60th Architecture Instruction Set Extensions and Future Features manual, which signaled the comeback of 512-bit vector processing on desktops after years of absence.

Previously, Intel disabled AVX-512 on client CPUs like Alder Lake and Raptor Lake due to design complexities between P-Cores and E-Cores, limiting the feature to Xeon server processors. With Nova Lake, these optimizations are now extending to mainstream desktops, improving software alignment with HEDT and server segments. The Core Ultra 400 Nova Lake-S lineup will introduce a new branding strategy and multiple configurations.

Single compute die variants are expected to launch first, with dual compute die models following. The 28-core DS version is slated for Q1 2027, while K-series SKUs may arrive in early Q2. A 52-core flagship is anticipated in late May.