Core Ultra 400 Series – 52 cores confirmed – x36 PCIe 5.0 lanes

Intel is back with a big B

Intel is tired being AMD favorite punching bag! The 2026 Nova Lake-S launch is a total architectural overhaul designed to do one thing: end the efficiency and gaming-cache debate once and for all. By moving to the Intel 18A (1.8 nm printed transistors) process node and the new LGA 1954 socket, Intel is delivering the most significant I/O and core-count jump in a decade.

Here is the direct breakdown of the confirmed specifications and the massive platform shifts.


The Core Specs: Core Ultra 400 Series

Intel is finally waking up and giving AMD something to worry about. The new Coyote Cove P-cores focus on raw IPC, while the Arctic Wolf E-cores provide the density required to hit a staggering 52-core count on a consumer desktop chip.

Nova Lake-S Confirmed Lineup

CPU Model Total Cores (P+E+LP) Max Boost Cache (L2+L3+bLLC) Architecture TDP (PL1/PL2) Est. Price
Ultra 9 490K 52 (16+32+4) 5.9 GHz 320 MB Coyote/Arctic 150W / 350W $749
Ultra 9 485K 44 (16+24+4) 5.7 GHz 288 MB Coyote/Arctic 125W / 300W $649
Ultra 7 470K 28 (8+16+4) 5.5 GHz 144 MB Coyote/Arctic 125W / 250W $489
Ultra 5 450K 24 (8+12+4) 5.3 GHz 144 MB Coyote/Arctic 125W / 200W $329
Ultra 5 440 20 (8+8+4) 5.1 GHz 76 MB Coyote/Arctic 65W / 150W $259


LP E-cores, a new kind of CORES ( whaaaat?)

LP E-cores (Low-Power Efficiency cores) are a specialized class of processor cores designed to handle the absolute lightest background tasks while using a fraction of the power required by standard cores.

Introduced with Intel’s “Meteor Lake” architecture (Core Ultra Series 1) and expanded in the Nova Lake lineup, these cores are physically separated from the main “Compute Tile” where the heavy-duty P-cores and E-cores live. Instead, they reside on the SoC (System on a Chip) Tile.


1. Why do they exist?

In traditional architectures, even a simple task like playing a video or checking for Wi-Fi signals would “wake up” the entire CPU compute die. This draws significant power.

LP E-cores allow the main, power-hungry compute tiles to enter a deep sleep state while the laptop is idle or performing basic tasks. This “Low Power Island” strategy is the primary reason modern laptops can achieve 20+ hours of battery life during video playback.


2. What tasks do they handle?

LP E-cores are not meant for gaming, rendering, or heavy browsing. They manage “micro-tasks” such as:


3. The Thread Director’s Role

Intel uses an AI-based hardware component called the Thread Director to decide which core handles which task. The logic generally follows this hierarchy:

  1. LP E-cores: Background tasks and media.

  2. E-cores: Multi-threaded workloads and background apps while the PC is active.

  3. P-cores: High-performance demands (gaming, active app in focus).


4. Key Benefits

In short, LP E-cores are the “janitors” of the CPU—they keep the system running quietly in the background so the “athletes” (P-cores) only have to work when it’s time to compete.


BANDWIDTH and PCIe Lanes

36 CPU sourced PCIe-Lanes

The biggest bottleneck of previous generations—choosing between GPU speed and SSD speed—is gone. Nova Lake-S provides 36 PCIe Gen5 lanes directly from the CPU.

Lane Category Lane Count Type Function / Destination
User Graphics 16 Lanes PCIe 5.0 Primary GPU Slot (x16)
User Storage 8 Lanes PCIe 5.0 2x Dedicated M.2 NVMe Slots (x4 each)
DMI Reserved 4 Lanes PCIe 5.0 DMI 5.0 x4 Link to Z990 Chipset
Thunderbolt Reserved 8 Lanes PCIe 5.0 Dual Thunderbolt 5 Controllers (x4 each)
Total CPU Native 36 Lanes Gen 5 Total Silicon Physical Budget

The Z990 Chipset: The New Backbone

The Z990 PCH (Platform Controller Hub) isn’t just a USB hub; it’s a high-bandwidth traffic controller. It connects to the CPU via an upgraded DMI Gen5 x8 link (only4 previously), doubling the “highway” speed between your peripherals and your processor.

Key Z990 Features:

Lane Category Count Status Purpose / Typical Usage
PCIe 5.0 Lanes 12 At Will High-speed Gen 5 NVMe SSD slots (slots 2/3/4) or 100GbE networking.
PCIe 4.0 Lanes 12 At Will Wi-Fi 7 modules, legacy M.2 slots, or PCIe x4 expansion cards.
Flex I/O (SATA) 8 Reserved* Dedicated to 8x SATA 6G ports for hard drives/SATA SSDs.
Flex I/O (USB) 16 Reserved* Powers up to 14 USB ports (including 5x USB 3.2 20G).

New type of motherboards

Radical PCB Changes: The Road to PCIe 6.0

The move to the Z990 platform introduces strict new motherboard manufacturing standards. To support the signal integrity required for these speeds, motherboards are shifting to ultra-low-loss PCB materials (like Megtron 7) and increasing layer counts to a minimum of 8 to 10 layers for even mid-range boards.

This is why you hear enthusiasts talking about PCIe 6.0: while Nova Lake is a Gen5 platform, its high-end traces and the Z990 chipset are “Gen6-ready.” PCIe 6.0 uses PAM4 signaling, which effectively doubles bandwidth but is incredibly sensitive to noise. These new high-end PCBs are over-engineered to ensure that when the next “refresh” arrives with true Gen6 support, the signal remains stable across the motherboard’s traces.


AMD is in it deep… and they need to leak something very soon to reassure red-team fans.

They have been the king of the hills roughly since 2016 and the first Gen Ryzen. Things seems like it might be changing soon!

Event Estimated Timing
Official Announcement Computex (June 2026) or Intel Innovation (Sept 2026)
Reviews & Pre-orders October 2026
Shelf Availability November 2026 (Just in time for the holidays)

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