Intel ‘LGA-1851’ Platform Tipped to Launch in H2 2024 & Will Not Support DDR4 Memory

Hardware leaker TLC has dropped a series of tweets where we see a lot of details regarding Intel’s upcoming LGA 1851 platform. Allegedly, LGA 1851 or the 800 series of motherboards will launch in the second quarter of 2024. Moreover, this platform will be supported until 2026.

Arrow Lake-S ‘LGA 1851’ Platform Leaks

The leaker mentions that two Engineering Samples designs with 6P + 8E cores are under consideration. Similarly, the i5-14600 (Ultra 5 160) is expected to boast 8 performance courses, 2 more than the i5-13600 and i5-14600.

There may be a node difference between the higher-end and lower-end SKUs, though nothing is official.

LGA 1851 will support Arrow Lake and possibly a future generation as well. After Arrow Lake, MLID expects Intel to launch Nova Lake for desktop. Panther Lake, much like Lunar Lake may remain exclusive to the mobile market.

The iGPU featured in Arrow Lake will have a dedicated L3 cache. By dedicated, the leaker means that the L3 cache will be placed on the GPU tile / chiplet. It is possible for the Compute Tile to access this L3 cache, but that may introduce latency issues.

Recently, we saw a leak alleging that the L2 cache has increased by 50% (2MB – 3MB) per core. TLC has verified this claim, however, the L3 slice size should remain similar to Raptor Lake. Therefore, if we take the 40-core (8P+32E) ARL-S flagship into account, expect 56MB of L2 cache and 48MB of L3 cache.

Z890 Chipset & Intel’s Plans for Arrow Lake

The same leaker has in the past, shared specifications regarding the LGA 1851 platform. To recap, LGA 1851 will offer 20 PCIe Gen5 + 4 PCIe Gen4 lanes (CPU). The chipset should have 24 PCIe Gen4 lanes available. Of course, these are the specs for the Z890 chipset. The B860 and H810 chipsets will be slightly toned down in comparison.

All CPUs based on the LGA 1851 socket will require DDR5 memory, ending the era of DDR4. We expect to see support for DDR5-6400 but that is subject to change.

Currently, Intel plans to launch Raptor Lake Refresh (14th Gen) in the next few weeks. RPL-R will contend against AMD until Zen5 launches in H1 2024, after which Intel will launch Arrow Lake.

  • Codenamed Arrow Lake ‘ARL’
  • Lion-Cove based P-Cores / Skymont-based E-Cores
  • Up to 40 Cores (8P+32E)
  • SMT (Hyperthreading) Disabled
  • Intel 20A (2nm) / TSMC N3B Process Technology
  • Foveros (Chiplet) Design
  • Introduction of PowerVia RibbonFET
  • ES up to 21% Faster Than Raptor Lake-S (13th Generation Desktop)
  • Late 2024/Early 2025
  • LGA 1851 Socket (Possible Support for 3 Generations)

Future Generations

CPU GenerationCodenameTDP RangeProcess NodePerformance Core MicroarchitectureEfficient Core MicroarchitectureArchitectureRelease DateCores/ThreadsSocketMemory Support
13th GenerationRaptor Lake (RPL)35W-125WIntel 7 (10nm)Raptor CoveGracemontHybrid (Dual Core)Launched24/32LGA 1700DDR4-3200, DDR5-5600
14th GenerationRaptor Lake Refresh-S/HX (RPL-R)55W-125WIntel 7 (10nm)Raptor CoveGracemontHybrid (Dual Core)Yet to Launch24/32LGA 1700 / Mobile PlatformDDR5-6400
14th Generation (1st Gen Core)Raptor Lake U (RPL-U)~25W?Intel 7 (10nm)Raptor CoveGracemontHybrid (Dual Core)Yet to Launch?/?Mobile Platform
14th Generation (1st Gen Core Ultra)Meteor Lake (MTL)?/?Intel 4 (7nm)Redwood CoveCrestmontHybrid (Triple Core)Yet to Launch?/?Mobile PlatformLPDDR5x-7500
15th GenerationArrow Lake (ARL)35W-125WIntel 20A (2nm)/TSMC 3nmLion CoveSkymontHybrid (Quad Core)Q4 2440/40?LGA 1851
15th Generation MobileLunar Lake (LNL)18ALion Cove+Skymont2024+8/-
16th Generation MobilePanther Lake (PNL)18A?Cougar CoveSkymont/Darkmont2024/25
17th GenerationNova Lake14A?Royal Cove2026LGA 1851
18th GenerationBeast Lake10A???2027?36?

Source: TLC, momomo_us


Abdullah Faisal

With a love for computers since the age of five, Abdullah has always sought to delve into the depths of information, and uses it as his guiding light. He believes success is of utmost importance as history is written by the victor.