Intel Core i7-875K vs Intel Core Ultra 9 285K

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Core i7-875K compared with Core Ultra 9 285K

	IntelCore i7-875K	IntelCore Ultra 9 285K
Overview
Released
Released	June 2010	October 2024
Cores and clocks
Cores
Cores	4	24 (8 performance, 16 efficiency) (better)
Threads
Threads	8	24 (better)
Base clock
Base clock	2.93 GHz	3.7 GHz
Boost clock
Boost clock	3.6 GHz	5.7 GHz (better)
L3 cache
L3 cache	8 MB	36 MB (better)
Cores
Cores	Four cores and eight threads with Hyper-Threading; unlocked multiplier confirmed in both exact reviews.	8 Performance-cores and 16 Efficient-cores, no Hyper-Threading; codename Arrow Lake
Clocks
Clocks	2.93 GHz base and up to 3.60 GHz Turbo Boost. Intel’s exact comparison chart gives Q2 2010. The 28 May review/announcement precedes the June retail availability documented by AKIBA PC Hotline; month precision is retained because a maker-confirmed first-sale day was not found.	P-core base 3.7 GHz, max turbo 5.5 GHz; E-core base 3.2 GHz, max turbo 4.6 GHz; Turbo Boost Max 3.0 5.6 GHz; Thermal Velocity Boost 5.7 GHz
Cache
Cache	8 MB shared L3 cache.	36 MB Intel Smart Cache (L3); 40 MB L2
Graphics and AI
Built-in graphics
Built-in graphics	No	Yes
Graphics
Graphics	Intel’s exact-model chart lists no processor graphics.	Intel Graphics, 4 Xe-cores, up to 2 GHz; outputs eDP1.4b, DP 2.1 UHBR20, HDMI 2.1 FRL; up to 4 displays; H.264, HEVC and AV1 encode and decode
AI engine
AI engine	–	Intel AI Boost NPU, 13 TOPS (INT8); 36 TOPS for the whole processor
Platform
Socket
Socket	LGA1156	LGA1851
Base power
Base power	95 W	125 W
Maximum power
Maximum power	–	250 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	–
Memory support
Memory support	DDR3-1333 rated maximum in Intel’s exact chart; two-channel memory confirmed by bit-tech’s exact review.	Up to DDR5 6400 MT/s; 2 channels, up to 256 GB; ECC supported
PCIe
PCIe	16 PCIe 2.0 lanes in PC Perspective’s exact-model review introduction.	PCIe 5.0 and 4.0; 24 lanes (Up to 1x16+2x4, 2x8+2x4, 1x8+4x4); DMI 4 x8; Thunderbolt 4 built in
Process
Process	45 nm; Lynnfield.	TSMC N3B (CPU)
Cooler
Cooler	The exact Newegg listing and contemporary AKIBA PC Hotline retail report confirm that the boxed model has no cooler.	max operating temperature 105 °C; thermal specification PCG 2020A