A new leak may have given us our clearest look yet at Intel’s first wave of Nova Lake-S desktop processors, including a Core Ultra 9 4970K BFC with 28 cores, 28 threads, a 125W power rating, integrated graphics, and Intel’s rumored large-cache technology.
The seven-model list also suggests Intel could use its new “BFC” branding to separate large-cache processors from conventional Nova Lake-S chips, while substantially higher-core-count dual-compute-tile models may follow later.
The specifications remain unofficial. Intel has not formally announced these individual processors, final clock speeds, pricing, or performance figures, so the leaked lineup should be treated as an early look at how Nova Lake-S could be segmented rather than a confirmed retail launch sheet.
Nova Lake is expected to belong to Intel’s Core Ultra Series 4 generation, also commonly referred to in reporting as the Core Ultra 400 family. The newly leaked desktop identifiers use four-digit model numbers such as 4970K and 4950K, representing another naming shift from current desktop parts such as the Core Ultra 9 285K.
Core Ultra 9 4970K BFC Headlines the Leaked Nova Lake-S Lineup
According to a leaked SKU table reported by Tom’s Hardware, the apparent flagship is the Core Ultra 9 4970K BFC, built around an 8 P-core, 16 E-core, and 4 LP-E-core configuration for 28 total CPU cores.
That configuration would also mean 28 threads, with one software thread per physical core rather than the two-thread-per-P-core behavior familiar from older Hyper-Threaded Intel desktop processors. That distinction is worth keeping in mind when comparing Nova Lake’s headline core count with previous Intel generations.
The chip is listed with a 125W power rating and integrated graphics containing 32 execution units. Previous Nova Lake reporting has also linked Intel’s large last-level cache, commonly referred to as bLLC, with capacities of up to 144 MB on a single compute tile.
The “BFC” branding appears alongside three models in the leaked lineup and is believed to identify processors equipped with the larger cache configuration. Intel has not publicly explained what the BFC abbreviation means, however, so the letters should not yet be treated as official Intel marketing terminology.
BFC Models Could Become Intel’s Large-Cache Gaming Strategy
The most interesting part of the leak may not be the raw core count at all. Intel appears to be preparing a separate group of Nova Lake-S processors built around substantially larger last-level caches.
That would put Intel in more direct competition with AMD’s Ryzen X3D processors, where additional cache has repeatedly proven useful in gaming workloads that benefit from keeping more frequently accessed data close to the CPU cores.
Cache capacity alone does not guarantee better gaming performance. Latency, memory behavior, scheduling, clock speeds, core architecture, and game-engine characteristics all matter. Until independent benchmarks are available, the rumored 144 MB figure should be viewed as an architectural feature rather than a performance result.
The 4970K BFC is joined by two other BFC-branded processors in the leaked lineup: the Core Ultra 9 4900 BFC and Core Ultra 7 4870K BFC. That suggests Intel may be preparing large-cache options at several points in the product stack rather than reserving the technology exclusively for a single flagship.
ITD Insight
The BFC models may tell us more about Intel’s strategy than the model numbers themselves. Rather than competing only through higher frequencies and core counts, Intel appears to be preparing cache-heavy desktop CPUs aimed at workloads, particularly gaming, that can benefit from keeping more data close to the cores. If that approach delivers the intended gains, Nova Lake could give Intel a more direct architectural response to AMD’s successful X3D lineup.
Nova Lake-S Segmentation Goes Beyond Core Counts
The leaked specifications point toward several distinct Nova Lake-S configurations, with BFC models adding LP-E cores and larger cache configurations alongside conventional K-series processors.
- Core Ultra 9 4970K BFC: 8 P-cores, 16 E-cores, and 4 LP-E cores for 28 cores and 28 threads; 125W; 32-EU integrated graphics.
- Core Ultra 9 4950K: 8 P-cores plus 16 E-cores for 24 cores and 24 threads; 125W; 32-EU integrated graphics.
- Core Ultra 9 4900 BFC: 6 P-cores, 12 E-cores, and 4 LP-E cores for 22 cores and 22 threads; 65W; 32-EU integrated graphics.
- Core Ultra 7 4870K BFC: 8 P-cores, 12 E-cores, and 4 LP-E cores for 24 cores and 24 threads; 125W; 32-EU integrated graphics.
- Core Ultra 7 4850K: 8 P-cores plus 12 E-cores for 20 cores and 20 threads; 125W; 32-EU integrated graphics.
- Core Ultra 5 4650K: 6 P-cores plus 12 E-cores for 18 cores and 18 threads; 125W; 32-EU integrated graphics.
- Core Ultra 5 4650KF: 6 P-cores plus 12 E-cores for 18 cores and 18 threads; 125W; integrated graphics disabled.
The four LP-E cores associated with the BFC configurations increase their total core counts beyond otherwise similar models. The 4970K BFC therefore reaches 28 cores, while the conventional 4950K configuration contains 24 cores based on the leaked 8+16 breakdown.
The same pattern appears farther down the lineup. The 4870K BFC reaches 24 cores through an 8+12+4 arrangement, while the 4850K contains 8 P-cores and 12 E-cores for 20 total cores. Likewise, the conventional Core Ultra 5 models use a 6+12 configuration for 18 cores.
Core Ultra 9 4900 BFC Could Be an Interesting 65W Outlier
One of the more unusual models is the Core Ultra 9 4900 BFC. The leaked table lists the processor with 6 P-cores, 12 E-cores, and 4 LP-E cores for 22 total cores, but with a substantially lower 65W rating.
If that specification reaches retail unchanged, the 4900 BFC could become an interesting option for compact desktops, quieter workstations, and performance-oriented systems where cooling capacity matters as much as absolute multicore throughput.
A large-cache processor with a lower sustained power target could also appeal to homelab users looking for strong general-purpose performance without automatically building around the thermal requirements of a 125W flagship.
That remains a theoretical advantage for now. Power ratings alone do not tell us actual package power under boost conditions, real-world efficiency, clock behavior, or cooling requirements. Those questions will require final firmware and independent testing.
LGA 1954 Turns Nova Lake Into a Platform Upgrade
Nova Lake-S is expected to move Intel’s mainstream desktop platform to the new LGA 1954 socket. Z990 and Z970 motherboards have been associated with the platform, meaning existing Intel desktop boards are not expected to support Nova Lake through a simple BIOS update.
That makes Nova Lake more than a processor upgrade. Buyers will need to consider motherboard pricing, memory compatibility, connectivity, power delivery, firmware maturity, and cooler support when calculating the real cost of moving to the new platform.
For anyone already invested in a recent Intel system, that platform cost could matter just as much as the CPU’s benchmark performance. Nova Lake will ultimately have to compete on total system value, not simply raw processor speed.
Integrated Graphics Remain Across Most of the Leaked Stack
Another consistent feature in the leaked lineup is a 32-EU integrated GPU on most models.
The exception is the Core Ultra 5 4650KF, which is listed without active integrated graphics. That follows Intel’s traditional use of an F-series designation for processors that require a discrete GPU for graphics output.
For gaming PCs already equipped with a dedicated graphics card, that distinction may not matter much. For workstations and homelab systems, however, integrated graphics can still be useful for troubleshooting, hardware-accelerated media workloads, basic display output, or operating a machine temporarily without a discrete GPU.
52-Core Nova Lake CPUs May Follow Later
The seven leaked processors do not include the much larger Nova Lake configurations that have appeared in previous reports. Those rumors describe dual-compute-tile processors reaching as high as 52 cores, potentially using two compute tiles rather than the single-tile configuration expected for the initial mainstream desktop products.
If accurate, that could eventually create two very different classes of Nova Lake desktop processors: conventional enthusiast parts topping out around the 28-core range initially, followed by substantially denser configurations aimed at heavier workstation-style or high-end desktop workloads.
Those later processors remain considerably less certain than the seven models in the latest leak. Intel has not announced final specifications, branding, pricing, or an exact release schedule for a 52-core desktop Nova Lake product.
What This Means for PC Builders
For builders, there are several reasons to watch Nova Lake-S even if some specifications change before launch.
The 4970K BFC suggests Intel may be putting renewed emphasis on gaming performance through additional cache rather than relying exclusively on frequency and core-count increases. The 4900 BFC hints at a potentially interesting lower-power option, while the widespread use of integrated graphics keeps most of the lineup flexible for general-purpose desktops, workstations, and homelab systems.
The tradeoff is the platform transition. Moving to LGA 1954 means Nova Lake will not be a drop-in upgrade for current Intel desktop owners, and motherboard cost will become part of any performance-per-dollar comparison.
There are also still major pieces missing. The leak does not give us final retail pricing, boost clocks, detailed memory support, actual power consumption, gaming benchmarks, productivity performance, or motherboard pricing. Any buying recommendation made before those details are available would be premature.
Bottom Line
The latest Nova Lake-S leak paints a more detailed picture of Intel’s next desktop generation, with seven processors reportedly planned around the initial lineup and the Core Ultra 9 4970K BFC sitting at the top with an 8+16+4 configuration for 28 cores and 28 threads.
More important than the raw core count may be Intel’s rumored BFC strategy. Large-cache versions of Nova Lake could give the company a new way to compete with AMD’s Ryzen X3D processors in gaming while still offering conventional K-series models and lower-power configurations elsewhere in the stack.
For now, however, the individual SKUs and specifications remain unconfirmed. Intel still needs to establish final clocks, pricing, motherboard costs, power behavior, and real-world performance before Nova Lake can be judged as a platform. Until then, this leak is best viewed as an increasingly detailed roadmap of where Intel’s next desktop generation may be heading.