Intel Core i5-3570K vs Intel Core i7-2600K

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Core i5-3570K compared with Core i7-2600K

	IntelCore i5-3570K	IntelCore i7-2600K
Overview
Released
Released	April 2012	January 2011
Cores and clocks
Cores
Cores	4	4
Threads
Threads	4	8 (better)
Base clock
Base clock	3.4 GHz	3.4 GHz
Boost clock
Boost clock	3.8 GHz	3.8 GHz
L3 cache
L3 cache	6 MB	8 MB (better)
Cores
Cores	Four cores without Hyper-Threading; Intel Turbo Boost 2.0 supported. Intel VT-x supported; VT-d is not supported on this model.	Four cores with Hyper-Threading; Intel Turbo Boost 2.0. Expert Reviews and TechRadar confirm the unlocked CPU multiplier.
Clocks
Clocks	Maximum turbo is a single-core frequency; sustained clocks and overclocking depend on motherboard support and cooling. Intel publishes TDP without a separate maximum turbo-power figure.	Maximum turbo is a single-core frequency; sustained clocks depend on cooling. Intel's 5 January launch notice gives 9 January availability for quad-core systems.
Graphics and AI
Built-in graphics
Built-in graphics	Yes	Yes
Graphics
Graphics	Intel HD Graphics 4000; 650 MHz base, up to 1.15 GHz; three displays; Quick Sync Video. Intel's launch information identifies DirectX 11 support; available outputs depend on the motherboard.	Intel HD Graphics 3000; 850 MHz base, up to 1.35 GHz; two displays; Quick Sync Video.
Platform
Socket
Socket	LGA1155	LGA1155
Base power
Base power	77 W	95 W
Unlocked
Unlocked	Yes	Yes
Memory support
Memory support	Up to 32 GB; two channels; DDR3-1333/1600; 25.6 GB/s maximum bandwidth; ECC not supported.	Up to 32 GB; two channels; DDR3-1066/1333; 21 GB/s maximum bandwidth as Intel publishes; ECC not supported.
PCIe
PCIe	PCIe 3.0; configurations up to 1×16, 2×8 or 1×8+2×4, as listed by Intel. Motherboard support determines available slot configurations.	PCIe 2.0; 16 CPU lanes.
Process
Process	22 nm; Ivy Bridge; 3D tri-gate transistors; 37.5 × 37.5 mm package; 67.4°C Tcase limit, not a junction-temperature limit.	32 nm; Sandy Bridge; 37.5 × 37.5 mm package; 72.6°C maximum case temperature, not junction temperature.
Cooler
Cooler	LGA1155-compatible cooling required. Intel announced the quad-core family on 23 April 2012; Ars Technica's contemporaneous launch report quotes Newegg confirming retail sale on 29 April. The archived maker sale notice could not be read, so the day is supported by named secondary retail coverage.	LGA1155 is incompatible with LGA1156. TechRadar describes the launch P67 chipset as supporting CPU overclocking and H67 as supporting the integrated graphics output; chipset choice affects available features. Intel publishes no separate maximum turbo-power figure.