Everything below is rumor-grade information. It comes from one leaker and the outlets repeating him.
What Jaykihn reportedly said
In a post dated October 4, 2026, Jaykihn said broader sampling of DS SKUs happens in December. He added that this is later than the other SKU segments in the Q1 lineup, but that December is when details would emerge before launch, "if any."
Those last two words matter. He is not promising benchmarks or specifications. He is saying December is when information could start to appear.
In a second post, he answered a question about launch order. He said "BFC will be the earliest launched among the lineup."
That creates an odd split:
- The BFC chips are said to launch first.
- Their wide sampling is said to come later than the other Q1 segments.
Why you haven't seen leaks
VideoCardz reports that Jaykihn says the lack of leaks does not mean these processors haven't been sampled. Instead, Intel is reportedly keeping DS access more restricted, much as AMD does with certain processors.
eTeknix argues this does not mean development is delayed. The story's headline uses the word "delayed", but no source offers evidence of a slipped schedule. The reporting supports restricted early access and a later broad rollout, not a delay.
Intel's motive is also unreported. Don't read "restricted sampling" as "anti-leak policy" or "trouble at the fab."
What is DS, and what is BFC?
Outlets disagree about what the DS label means.
- eTeknix says DS stands for "Dual Compute Tile." VideoCardz calls it an internal package designation for dual-compute-tile variants. Club386 likewise describes DS chips as the two-compute-tile parts, rumored to reach up to 52 cores.
- Northwood Blog, a Japanese hardware blog, posted on October 6 that it had heavily corrected its earlier account. Its correction says DS is not Dual Compute Tile but refers to models with big Last Level Cache (bLLC). It says those models are expected to ship as BFC.
The sources do agree that DS chips are tied to the BFC suffix and the bLLC cache. TechPowerUp says the BFC suffix has appeared on several leaked Core Ultra 4000 desktop processors and is linked to Intel's larger bLLC implementation. Which one DS literally means is not settled. Treat both readings as unconfirmed.
The rumored flagship
The chip named most often is the Core Ultra 9 4970K BFC. eTeknix describes it as the new top-of-the-range model, with 28 cores and an expanded bLLC cache. TechPowerUp describes the leaked configuration as eight P-cores, 16 E-cores and four LPE cores.
VideoCardz notes a recent SKU leak lists seven Core Ultra 4000 desktop processors, three of them BFC models. It says standard models without the BFC suffix are also listed. None of that is an official lineup.
Timing: what is and isn't known
- Intel's public stance: TechPowerUp says Nova Lake-S is currently expected in Q1 2027. That is the outlet's expectation, not an Intel announcement.
- Earlier official context: TechSpot reported in January that Intel CEO Lip-Bu Tan said on the Q4 2025 earnings call that Nova Lake desktop processors would arrive by the end of 2026. That was a broad statement about the product family. It said nothing about BFC, the 4970K or the DS label.
- December: The window applies to wider sampling, including qualification samples (QS). QS parts are close to final silicon and normally go to partners. eTeknix says they will reach system builders and industry partners. VideoCardz is more cautious and says only a "larger group." The wider claim is not established.
What this means for PC buyers
- Don't read much into the silence. Few BFC benchmarks have surfaced, and sample access is a plausible reason.
- Don't plan a purchase around a date. The leaks give no confirmed price, performance, availability, platform compatibility or final specifications.
- Watch December. If the sampling plan holds, more leaks are likelier then. Jaykihn himself hedged that with "if any," and he reportedly considers leaks from the restricted phase unlikely.
- Don't compare against AMD yet. No source provides test data for the BFC parts. The comparison to AMD's X3D chips is about design intent, not measured results.
The bottom line
The reporting supports three things. Jaykihn says DS samples are tightly controlled. He says broader sampling, including QS, comes in December. And he says BFC parts are meant to launch early. It does not support a development delay, a launch date or confirmed specifications. Until Intel says something itself, the Core Ultra 9 4970K BFC and its 28 cores are a leak to follow, not a spec sheet to rely on.