Intel Core i7-3820 vs Intel Core i9-14900KS

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Core i7-3820 compared with Core i9-14900KS

	IntelCore i7-3820	IntelCore i9-14900KS
Overview
Released
Released	February 2012	March 2024
Cores and clocks
Cores
Cores	4	24 (8 performance, 16 efficiency) (better)
Threads
Threads	8	32 (better)
Base clock
Base clock	3.6 GHz	3.2 GHz
Boost clock
Boost clock	3.8 GHz	6.2 GHz (better)
L3 cache
L3 cache	10 MB	36 MB (better)
Cores
Cores	Four cores and eight threads; Sandy Bridge-E with Hyper-Threading. The multiplier is only partly unlocked, as both exact reviews explain; unlocked is false here because it is not fully unlocked.	Raptor Lake; 8 Performance-cores with Hyper-Threading and 16 Efficient-cores
Clocks
Clocks	Turbo Boost 2.0 up to 3.80 GHz from Intel’s current sheet; KitGuru’s engineering-sample review table instead states 3.90 GHz. Intel staff acknowledged release in February 2012; month precision is retained rather than treating the forum’s proposed day as verified sale.	P-core base 3.2 GHz and turbo 5.7 GHz; E-core base 2.4 GHz and turbo 4.5 GHz; Turbo Boost Max 3.0 5.9 GHz; Thermal Velocity Boost up to 6.2 GHz
Cache
Cache	10 MB Intel Smart Cache; L3 level confirmed by both exact reviews.	32 MB L2 cache
Graphics and AI
Built-in graphics
Built-in graphics	No	Yes
Graphics
Graphics	No integrated graphics or Quick Sync, confirmed by KitGuru’s exact-model review.	Intel UHD Graphics 770; 32 execution units; 300 MHz base and 1.65 GHz maximum dynamic clock
Platform
Socket
Socket	LGA2011	LGA1700
Base power
Base power	130 W	150 W
Maximum power
Maximum power	–	253 W
Unlocked
Unlocked	No	Yes
Cooler in the box
Cooler in the box	No	–
Memory support
Memory support	Four channels of DDR3-1066/1333/1600; 51.2 GB/s maximum published bandwidth; no ECC. Intel’s anomalous 64.23 GB maximum-memory value is not normalised into a guessed capacity.	Up to 192 GB; two channels; DDR5-5600 or DDR4-3200; ECC support depends on the motherboard and configuration
PCIe
PCIe	40 CPU lanes; Intel’s current sheet lists PCIe 2.0, while both contemporary reviews describe PCIe 3.0 capability. The manufacturer’s current literal figure is retained with this conflict explicit.	20 CPU lanes; PCIe 5.0 and 4.0
Chipsets
Chipsets	Intel X79; LGA2011.	Intel recommends Z790 or Z690 with the latest BIOS
Process
Process	32 nm; Sandy Bridge-E.	Intel 7
Cooler
Cooler	Exact BX80619I73820 Newegg listing states cooling device not included. Intel gives a case-temperature limit of 66.8°C.	Maximum operating temperature 100 °C; maker maximum turbo power 253 W. The 320 W Extreme profiles used in launch reviews are separate operating configurations.