CPU Description

Release & Generation

Released January 2025
Intel Core Ultra Series 2 (Arrow Lake)
Desktop implementation of Arrow Lake architecture using TSMC N3B process, featuring Lion Cove Performance-cores and Skymont Efficiency-cores

Core Configuration & Speeds

8 Performance-cores + 12 Efficiency-cores = 20 cores / 20 threads
66 MB total cache (30 MB L3 + 36 MB L2)
Up to 5.3 GHz boost (Performance-cores up to 5.2 GHz, Efficiency-cores up to 4.6 GHz)
65W base power / 182W maximum turbo power

Memory Support

DDR5 up to 6400 MT/s, dual-channel; ECC supported

Socket

LGA 1851 (FCLGA1851); requires Z890/B860 chipset motherboards for Arrow Lake platform

Variants

265: Standard 65W TDP; includes integrated Intel graphics (4 Xe-cores)
265K: Unlocked multiplier; higher base clocks (3.9/3.3 GHz vs 2.4/1.8 GHz), 125W base power, up to 5.5 GHz max turbo
265KF: Same as 265K but no integrated graphics (0 Xe-cores)
265F: Same as 265 but no integrated graphics (0 Xe-cores)
265T: Low-power variant with 35W base power / 112W max turbo and slightly reduced clocks

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