Intel Core i7-14700K vs Intel Core i7-990X Extreme Edition

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Core i7-14700K compared with Core i7-990X Extreme Edition

	IntelCore i7-14700K	IntelCore i7-990X Extreme Edition
Overview
Released
Released	October 2023	February 2011
Cores and clocks
Cores
Cores	20 (8 performance, 12 efficiency) (better)	6
Threads
Threads	28 (better)	12
Base clock
Base clock	3.4 GHz	3.46 GHz
Boost clock
Boost clock	5.6 GHz (better)	3.73 GHz
L3 cache
L3 cache	33 MB (better)	12 MB
Cores
Cores	8 Performance-cores and 12 Efficient-cores, with Hyper-Threading; codename Raptor Lake	Six cores and twelve threads with Hyper-Threading; unlocked multiplier confirmed by bit-tech’s exact review.
Clocks
Clocks	P-core base 3.4 GHz, max turbo 5.5 GHz; E-core base 2.5 GHz, max turbo 4.3 GHz; Turbo Boost Max 3.0 5.6 GHz	3.46 GHz base and up to 3.73 GHz Turbo Boost. Intel gives Q1 2011; contemporary TechSpot launch coverage and Newegg’s exact listing support February availability. A maker-confirmed first-sale day was not found.
Cache
Cache	33 MB Intel Smart Cache (L3); 28 MB L2	12 MB shared L3 cache.
Graphics and AI
Built-in graphics
Built-in graphics	Yes	No
Graphics
Graphics	Intel UHD Graphics 770, 32 execution units, up to 1.6 GHz; outputs eDP 1.4b, DP 1.4a, HDMI 2.1; up to 4 displays	Intel's exact-model comparison chart lists no processor graphics.
Platform
Socket
Socket	LGA1700	LGA1366
Base power
Base power	125 W	130 W
Maximum power
Maximum power	253 W	–
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	–	Yes
Memory support
Memory support	Up to DDR5 5600 MT/s or up to DDR4 3200 MT/s; 2 channels, up to 192 GB; ECC supported	Three-channel DDR3-1066 in Intel’s exact-model chart.
PCIe
PCIe	PCIe 5.0 and 4.0; 20 lanes (Up to 1x16+4, 2x8+4); DMI 4.0 x8	The exact Newegg listing specifies 6.4 GT/s QPI. No processor PCIe lane count is assumed for this chipset-based platform.
Chipsets
Chipsets	Intel 600 and 700 series	–
Process
Process	Intel 7	32 nm; Gulftown.
Cooler
Cooler	max operating temperature 100 °C; thermal specification PCG 2020A	Intel's 32 nm Core i7-900 datasheet includes an unattached fan heatsink with boxed processors. Tray and second-hand packages may differ.