Intel 15th Gen Core i9-15900K Spotted: 24 Cores/24 Threads: No Hyper-Threading or Rentable Units

Update: Intel 15th Gen Core i7-15700K, Core i9-15900K Specs and Release Date.

An Intel 15th Gen Arrow Lake CPU has been spotted in the Linux GNU (courtesy: InstLatX64). Featuring 24 threads with a base clock of 3000MHz, we’re likely looking at the Core i9-15900K or the Core Ultra 9. The fact that the thread count is the same as the core count means that hyper-threading is missing, and with no mention of Rentable Units, Arrow Lake will be a unique lineup, to say the least.

Intel 15th Gen Core i9-15900K

Hyper-threading may have been disabled from the BIOS, but this would be the second time we’ve seen an Arrow Lake sample without active hyper-threading. The previous sample (leaked by YuuKi_Ans) was also a 24-core (8P +16E) chip with no hyper-threading, a 3.5GHz base clock, and a 125W TDP.

Intel 15th Gen Core i9-15900K

The interesting question is whether Arrow Lake will architecturally support hyper-threading, and if so, will it be disabled from the BIOS like AVX512 on early 12th Gen chips? The decision to remove SMT without a suitable replacement feels unnecessary. Was hyper-threading removed because it didn’t provide any tangible performance advantages or because early plans for Rentable Units didn’t pan out?

Areej Syed

Processors, PC gaming, and the past. I have been writing about computer hardware for over seven years with more than 5000 published articles. Started off during engineering college and haven't stopped since. Mass Effect, Dragon Age, Divinity, Torment, Baldur's Gate and so much more... Contact: areejs12@hardwaretimes.com.
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