Please note that this post is tagged as a rumor .
Leak: Core Ultra 400 Nova Lake-S K-series may exceed 700W at full load (PL4 level)
Two leakers posted fresh technical notes about Intel’s upcoming Core Ultra 400 desktop lineup (Nova Lake-S), including a new high-end power claim and several platform behavior details. The posts use “NVL-S” for the desktop family and “NVL-K” for the unlocked K-series model discussed here.
Nova Lake K-Series 700W in PL4
The headline number comes from kopite7kimi, who says “the power consumption of a full-load NVL-K is over 700 watts.” The post does not specify the workload or test conditions beyond “full-load,” and Intel has not confirmed any power targets for Nova Lake-S.
It is believed to be the PL4 level, also known as Power Level 4, the highest power rating for Intel CPUs. To understand what PL4 is, one should refer you to Raptor Lake-S post where the figure for 13th Gen series was up to 314W for the performance profile and 125W TDP SKU. Therefore, alleged Nova Lake K-series figure would be over twice as high. For Core Ultra 9 285K that figure is reportedly 490W in Extreme profile.
The 700W PL4 figure is specifically for the dual-tile config. This CPU has combined 16 P-cores, 32 E-Cores and 4 LPE cores.
Source: X/Twitter
Overclocking and temperature monitoring
Jaykihn shared preliminary thermal and monitoring behavior for NVL-S. He says TJMax cannot be offset, thermal throttling cannot be disabled, and the on-die sensor can report from -64 C to 100 C (TJMax) when Negative Temperature Reporting is enabled.
Jaykihn also commented on control and configuration. In response to a BCLK overclocking question, he says LP E-cores are not affected by BCLK or ECLK. Interestingly, he also says the processor can boot with only LP E-cores, or with LP E-cores plus E-cores while P-cores are disabled , and that entire compute dies can be disabled. He adds that disabling is per-cluster because both P-cores and E-cores are now clustered.
Intel Nova Lake-S is now expected to debut between 2026 and 2027. Intel confirmed Nova Lake will launch by the end of this year, but did not specify if that’s mobile or desktop part.
| Intel Desktop Platforms Specs (Rumors) | ||||||
|---|---|---|---|---|---|---|
| VideoCardz.com | Codename | Socket | CPU Cores | GPU | NPU | BLLC |
| Core (Ultra) 400 Nova Lake-S ⬅️ | Nova Lake-S | LGA-1954 | 52 (16P + 32E + 4 LP-E) | Xe3(p)-LPG | NPU6 | ✅ |
| Core (Ultra) 200 Arrow Lake-S Refresh | Arrow Lake-S Refresh | LGA-1851 | 24 (8P + 16E) | Xe-LPG | NPU3 | ❌ |
| Core (Ultra) 200 Arrow Lake-S | Arrow Lake-S | LGA-1851 | 24 (8P + 16E) | Xe-LPG | NPU3 | ❌ |
| 14th Gen Core Raptor Lake-S Refresh | Raptor Lake-S Refresh | LGA-1700 | 24 (8P + 16E) | Xe-LP | ❌ | ❌ |
| 13th Gen Core Raptor Lake-S | Raptor Lake-S | LGA-1700 | 24 (8P + 16E) | Xe-LP | ❌ | ❌ |
| 12th Gen Core Alder Lake-S | Alder Lake-S | LGA-1700 | 16 (8P + 8E) | Xe-LP | ❌ | ❌ |
Source: Jaykihn , Kopite7kimi
