THE CRUNCH

Intel's upcoming Core Ultra 4000 "Nova Lake-S" desktop processors will reportedly cap their maximum core frequency at 5.1 GHz whenever they run above 90°C, according to Intel leaker Jaykihn on X. The limit is said to apply to the whole Nova Lake-S desktop lineup and to work separately from regular thermal throttling at the 100°C TjMax, the chip's absolute temperature ceiling. Like TjMax, the 90°C threshold reportedly cannot be raised, and Jaykihn stresses the information is still preliminary. Intel has not confirmed any of this.

The cap is best understood as a safety net between normal boost behaviour and full thermal throttling. Below 90°C the chips should boost as usual, and models that never exceed 5.1 GHz in the first place would be unaffected. Because final Nova Lake clocks are not official yet, it is impossible to say how much performance the cap would cost, though the current Core Ultra 9 285K already boosts to 5.7 GHz, so a hot-running high-end chip could lose a sizable slice of its peak frequency.

The rumour also puts more weight on cooling. The 100°C TjMax would be lower than Arrow Lake's 105°C, which can be manually raised to 115°C on the 285K, and the 28-core Core Ultra 9 4970K BFC has reportedly been set to pull up to 296 W at PL2 despite its 125 W rating. Staying under 90°C at that kind of power draw would likely take a seriously capable cooler.

Nova Lake-S is currently expected to arrive in Q1 2027, and Club386 notes Intel has promised more information at CES 2027, so the details should firm up before launch.

Key dates

Nova Lake-S: what's next

  1. CES 2027

    Intel expected to reveal more information

  2. Q1 2027

    Nova Lake-S expected to arrive

Dates from Club386, TechPowerUp, as quoted in this brief.