Alleged Intel Arrow Lake-S CPU Power Limits Revealed: 125W PL1, 177W PL2, 333W PL4 For 8+16 Core Unlocked SKU

Alleged power limits of Intel's Arrow Lake-S Desktop CPU featuring 8 P-Cores and 16 E-Cores have been revealed by Darkmont.

Intel Arrow Lake-S Desktop CPUs With 24 Cores Feature 125W PL1, 177W PL2 & 333W PL4 Power Limits On Unlocked SKUs

As per the leaked chart, we get to see the power limits of an Intel Arrow Lake-S Desktop CPU. This specific SKU is configured with 8 P-Cores based on the Lion Cove and 16 E-Cores based on the new Crestmont architectures for a total of 24 cores and 32 threads. This is the same configuration that we get on the current flagship, the Core i9-13900K and Core i9-14900K.

The chart states a 125W Baseline power which is a standard for Intel's Unlocked CPUs. All Unlocked "K" chips have a PL1 rating of 125W and this specific SKU has a PL2 rating of 177W. The PL2 rating is much lower than what we get on the Core i9-13900K (rated at 253W). That's a 76W or 43% power reduction for PL2. The same is the case with the PL4 power limit which is rated at 333W. The Core i9-13900K has a PL4 limit of 420W so we are looking at an 87W or 26% reduction here too. The TaU duration is retained at 56 seconds while the CPU features a 3+2 core design phase.

• Intel Raptor Lake 125W (PL1/PL2/PL4) 24 Core SKU - 125W / 253W / 420W
• Intel Arrow Lake 125W (PL1/PL2/PL4) 24 Core SKU - 125W / 177W / 333W

Now all of these power limits could be only specific to early engineering samples but if they end up in the final design too, that would mean that Arrow Lake-S Desktop CPUs might end up being very efficient compared to existing 13th and 14th Gen parts that utilize the Intel 7 (10nm ESF) node. It is known that Intel's Arrow Lake-S Desktop CPUs will be making use of the new 20A process node on the compute tile so that is expected to give them a major efficiency boost.

As per our previous leak, the Intel Arrow Lake-S CPU lineup would feature the following CPU dies:

• Arrow Lake-S 24 (8P + 16E) / 4 Xe Cores / 125W TDP
• Arrow Lake-S 24 (8P + 16E) / 4 Xe Cores / 65W TDP
• Arrow Lake-S 24 (8P + 16E) / 4 Xe Cores / 35W TDP

Intel Arrow Lake-S Desktop CPUs will be heading to the next-gen LGA 1851 socket featured on 800-series motherboards with the following features:

• LGA 1851 Socket Longevity Planned Uptill 2026
• DDR5 Only Compatibility, No DDR4 Support
• Kicks off With 800-Series Motherboards
• Support For Up To DDR5-6400 Memory (Native JEDEC)
• Increased PCIe Gen 5.0 Lanes Through CPU & PCH
• Arrow Lake-S First Desktop Family Supported
• Arrow Lake-S CPUs feature 3 MB L2 Cache Per P-Core
• Arrow Lake-S CPUs feature refreshed Alchemist iGPUs
• Arrow Lake-S CPUs feature integrated LLC "Adamantine" for GPU Tile
• Arrow Lake-S CPUs feature 8+16, 8+0, 6+8 CPU SKUs
• Launching In 2H 2024

The Intel Arrow Lake-S Desktop CPUs are still a year away from launch and we might not hear from Intel about them for several months prior to the launch. What we know is that the 14th Gen Raptor Lake Refresh Desktop CPUs are the last family on the LGA 1700 socket after which the company will transition to the aforementioned LGA 1851 socketed platforms.

Intel Desktop CPU Generations Comparison:

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