Exclusive: Intel Core Ultra 400 “Nova Lake-S” Roadmap Leaks – Up to 52 Cores, DDR5-8000, and a Surprise Socket Promise
The next major desktop platform from Intel is taking shape. Based on updated roadmaps shared with partners, we can now confirm key details about the Nova Lake-S family, which will be branded as the Core Ultra 400 series (Series 4). The leaked preliminary SKU list, obtained by VideoCardz, paints a detailed picture of a platform designed for both mainstream and high-end desktop (HEDT) segments.
Forward Socket Compatibility – A First for Intel
One of the most significant revelations in the material is explicit mention of forward socket compatibility and reuse of existing Socket V cooling solutions. While Intel has historically moved to new sockets every two generations, this roadmap note suggests the company is preparing a longer lifespan for its upcoming desktop platform. For enthusiasts, that could mean a cooler investment that lasts multiple CPU upgrades.
Core Architecture and Memory Support
Nova Lake-S introduces Coyote Cove P-cores and Arctic Wolf E-cores, alongside an NPU 6 AI accelerator. Memory support jumps to DDR5-8000 MT/s (native), a substantial increase over current platforms. The chipset also brings integrated Wi-Fi 7, Low Energy Audio, Wi-Fi-based sensing, ECC, CUDIMM and CSODIMM memory, and support for up to four independent displays.
Connectivity includes discrete graphics over PCIe 5.0 x16, CPU bifurcation (x4/x4/x4/x4), up to three x4 PCIe 5.0 links from the chipset, up to eight SSDs across PCIe 5.0 and 4.0, and two Thunderbolt 5 connections.
Five Die Packages, 13 SKUs
Intel is planning five distinct desktop die packages, ranging from entry-level to enthusiast:
- 8-core die: 4 P-cores + 0 E-cores (plus 4 LP E-cores on hub)
- 16-core die: 4 P-cores + 8 E-cores
- 28-core die: 8 P-cores + 16 E-cores
- 44-core dual-die: Two (8+12) chiplets + 4 LP E-cores
- 52-core dual-die: Two (8+16) chiplets + 4 LP E-cores
All desktop packages include 4 LP E-cores, NPU6, dual-channel DDR memory, 24 PCIe Gen5 lanes, two Thunderbolt 5 ports, and 2 Xe3 GPU cores – meaning even the highest-end SKUs share the same basic integrated graphics block.
The preliminary SKU list shows 13 planned parts across TDP levels of 35W, 65W, 125W, and 175W. The two 175W top models – 52-core and 44-core – are the rumored Core X series HEDT successors, positioned above the mainstream Core Ultra 9.
Mainstream Lineup Highlights
- Core Ultra 9: 28-core (8P+16E+4LPE) at 125W, plus a 22-core variant (6P+12E+4LPE) at 65W
- Core Ultra 7: 24-core (8P+12E+4LPE) at 125W/65W, and a 16-core (4P+8E+4LPE) at 65W/35W
- Core Ultra 5: 22-core (6P+12E+4LPE) at 125W/65W (including a GTO “F” variant without graphics), plus 12-core and 8-core options
- Core Ultra 3: 6-core (2P+0E+4LPE) at 65W/35W
Production Timeline
Intel is planning mass production of Nova Lake in the fourth quarter of this year, with a desktop launch expected in early 2027 (likely CES). The detailed SKU list suggests engineering validation is well underway.
Also, Read
- Intel’s “Big Battlemage” BMG-G31 Packs 27.7 Billion Transistors, But It’s Not for Gamers
- Intel Nova Lake-S Rumor: Dual-Tile Desktop CPU Gets Bumped from 42 to 44 Cores
- Intel Core Ultra 5 250KF Plus appears at $199, first Arrow Lake Refresh chip under $200
Bottom Line
Nova Lake-S looks to be Intel’s most ambitious desktop platform in years, offering everything from low-power 6-core chips to 52-core HEDT monsters. The explicit promise of forward socket compatibility could finally address one of Intel’s longest-standing criticisms. With DDR5-8000, Thunderbolt 5, Wi-Fi 7, and NPU6, the Core Ultra 400 series aims to keep the desktop relevant well into the AI era.
Source: videocardz