Intel's top-end Nova Lake desktop CPU said to devour up to 700W in PL4 — claimed power draw close to double Arrow Lake
Published: (February 10, 2026 at 12:30 PM EST)
2 min read
Source: Tom's Hardware
Source: Tom’s Hardware
Image credit: Intel
Overview
Intel’s upcoming desktop family, Nova Lake, is slated to debut later this year and will follow the Arrow Lake refresh expected in March. Rumors suggest significant architectural upgrades, including configurations with up to 52 cores and the addition of a big last‑level cache (bLLC) that rivals AMD’s X3D technology.
Power Limits
- PL4 (Maximum Power Limit): A hard limit designed to protect the processor when power limits are removed in the BIOS (e.g., using the Intel Extreme Performance profile).
- Reported PL4: Up to 700 W for Nova Lake, nearly double the 490 W PL4 of the outgoing Core Ultra 9 285K (Arrow Lake).
- PL1 & PL2: Represent sustained and burst power, respectively, and are the more relevant figures for typical operation. PL4 is disabled by default.
TJMax and Thermal Throttling
- Nova Lake will not allow offsetting TJMax, meaning the maximum safe operating temperature cannot be manually increased.
- TJMax: Expected to be around 105 °C, matching Arrow Lake (up from 100 °C on Raptor Lake).
- Once TJMax is reached, the CPU will automatically thermal‑throttle, and this behavior cannot be disabled.
“NVL‑S, preliminary (TJMax value). TJMax cannot be offset and thermal throttling cannot be disabled. The thermal sensor can report from -64 °C to 100 °C (TJMax) if Negative Temperature Reporting is enabled.” – Twitter, February 9 2026
Core Configuration and Clock Gating
- Nova Lake can operate without performance cores, relying solely on standard or low‑power efficiency cores.
- The lineup will introduce LP‑E cores on desktop, housed on a separate low‑power island.
- This architecture enables clock‑gating of large portions of the compute complex to save power and reduce heat when idle.
Variants
| Variant | Compute Tiles | Core Mix | bLLC Cache |
|---|---|---|---|
| NVL‑S (cut‑down) | 1 tile | 28 cores | — |
| NVL‑S (maxed‑out) | 2 tiles | 16 P‑cores, 32 E‑cores, 4 LP‑E cores (total 52) | Up to 288 MB (128 MB per tile) |
The 52‑core version positions Nova Lake against AMD’s upcoming Zen 6 flagship desktop CPUs.
Platform Details
- Socket: LGA 1954, backward compatible with coolers designed for LGA 1851.
- Motherboards: 900‑series chipset motherboards with up to 48 PCIe lanes, expected to launch in late 2026.
Related Leaks
- Mobile Variant: May be limited to a single compute tile.
- Nova Lake‑AX: Earlier rumors of an extreme “Strix Halo” competitor (28 CPU cores, 48 Xe‑cores, upgraded memory bus) have since faded.