Intel Nova Lake AX Details Image © IntelIntel Nova Lake AX Details (Image © Intel)

Top Configuration: The Core Ultra 9 4970K BFC

At the top of the leaked hierarchy is the Core Ultra 9 4970K BFC. This processor has a total of 28 cores, divided into 8 performance cores (P-cores), 16 efficiency cores (E-cores), and 4 low-power efficiency cores (LPE-cores).

Technically, this model stands out due to its integrated “Big Last-Level Cache” (bLLC), a feature designed to compete with large-cache alternatives on the market. The 4970K BFC is rated at a base power consumption of 125 W and features an integrated GPU consisting of 32 Execution Units (EUs). This configuration positions it above the previously leaked Core Ultra 9 4950K, which reportedly has 24 cores (8 P-cores and 16 E-cores) and lacks both LPE cores and the bLLC.

Core Ultra 4000 Nova Lake S LeakCore Ultra 4000 Nova Lake S Leak (Image © @laurentschoice auf X)

All Mid-Range and Efficiency-Class Models

The leaked information provides detailed insight into the lower-power Core Ultra 7 and Core Ultra 9 variants and shows a clear distinction based on the presence of bLLC:

  • Core Ultra 7 4870K BFC: This model has 24 cores and incorporates bLLC technology.
  • Core Ultra 7 4850K: This version is equipped with 20 cores and does not feature bLLC.
  • Core Ultra 9 4900 BFC: An efficiency-focused high-end chip with 22 cores and bLLC, which has a significantly lower rated power of 65 W.

The “BFC” suffix appears exclusively on models equipped with bLLC. This cache extension is considered Intel’s architectural response to 3D V-Cache implementations and aims to reduce memory latency and improve performance in gaming and professional applications.

While the 4970K BFC is rated at 125 W, reports suggest that actual power consumption under peak load could be significantly higher. In PL2 (Power Level 2) scenarios, the 28-core bLLC chip is rumored to reach a power consumption of up to 296 W. This discrepancy highlights the difference between sustained base performance and short-term boost performance.

Possible Launch Plans

The Nova Lake-S family is expected to be rolled out gradually. Recent indications suggest that qualification samples are already appearing in system information tools such as HWiNFO, meaning the hardware is in the final stages of validation. The first market launch is expected in the first quarter of 2027, with a focus on models featuring a single compute core. A flagship version with 52 cores is set to follow later in 2027, although specific technical details regarding this ultra-high-end SKU have not yet been announced.