Intel Core i7-5820K vs Intel Core i9-14900K

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Core i7-5820K compared with Core i9-14900K

	IntelCore i7-5820K	IntelCore i9-14900K
Overview
Released
Released	August 2014	October 2023
Cores and clocks
Cores
Cores	6	24 (8 performance, 16 efficiency) (better)
Threads
Threads	12	32 (better)
Base clock
Base clock	3.3 GHz	3.2 GHz
Boost clock
Boost clock	3.6 GHz	6 GHz (better)
L3 cache
L3 cache	15 MB	36 MB (better)
Cores
Cores	Haswell-E; six cores with Hyper-Threading; unlocked multiplier and lack of integrated graphics confirmed by exact-model reviews	8 Performance-cores and 16 Efficient-cores, with Hyper-Threading; codename Raptor Lake
Clocks
Clocks	–	P-core base 3.2 GHz, max turbo 5.6 GHz; E-core base 2.4 GHz, max turbo 4.4 GHz; Turbo Boost Max 3.0 5.8 GHz; Thermal Velocity Boost 6 GHz
Cache
Cache	–	36 MB Intel Smart Cache (L3); 32 MB L2
Graphics and AI
Built-in graphics
Built-in graphics	No	Yes
Graphics
Graphics	–	Intel UHD Graphics 770, 32 execution units, up to 1.65 GHz; outputs eDP 1.4b, DP 1.4a, HDMI 2.1; up to 4 displays
Platform
Socket
Socket	LGA2011-v3	LGA1700
Base power
Base power	140 W	125 W
Maximum power
Maximum power	–	253 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	–
Memory support
Memory support	Up to 64 GB; four channels; DDR4-1600/1866/2133; maximum bandwidth 68 GB/s; no ECC support	Up to DDR5 5600 MT/s or up to DDR4 3200 MT/s; 2 channels, up to 192 GB; ECC supported
PCIe
PCIe	28 CPU lanes; PCIe 3.0	PCIe 5.0 and 4.0; 20 lanes (Up to 1x16+4, 2x8+4); DMI 4.0 x8
Chipsets
Chipsets	X99 and LGA2011-v3, as distinguished by Intel's Core i7 comparison chart and exact-model reviews. August release month follows Intel's 29 August family availability notice and contemporary exact-model stock coverage; an exact maker-SKU first-sale day was not established.	Intel 600 and 700 series
Process
Process	22 nm; package size 52.5 × 45 mm	Intel 7
Cooler
Cooler	Intel explicitly excludes a fan and heatsink from the boxed product; a separate cooler is required	max operating temperature 100 °C; thermal specification PCG 2020A