Intel Core i5-2500K vs Intel Core i5-3570K

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Core i5-2500K compared with Core i5-3570K

	IntelCore i5-2500K	IntelCore i5-3570K
Overview
Released
Released	January 2011	April 2012
Cores and clocks
Cores
Cores	4	4
Threads
Threads	4	4
Base clock
Base clock	3.3 GHz	3.4 GHz
Boost clock
Boost clock	3.7 GHz	3.8 GHz (better)
L3 cache
L3 cache	6 MB	6 MB
Cores
Cores	Four cores without Hyper-Threading; Intel Turbo Boost 2.0 and VT-x supported; VT-d not supported.	Four cores without Hyper-Threading; Intel Turbo Boost 2.0 supported. Intel VT-x supported; VT-d is not supported on this model.
Clocks
Clocks	Maximum turbo is a single-core frequency. The multiplier is unlocked, but motherboard support and cooling determine available overclocking; the original H67 platform does not support CPU multiplier overclocking.	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.
Graphics and AI
Built-in graphics
Built-in graphics	Yes	Yes
Graphics
Graphics	Intel HD Graphics 3000; 850 MHz base, up to 1.10 GHz; two displays; Quick Sync Video. Available display outputs and access to integrated graphics depend on the motherboard.	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.
Platform
Socket
Socket	LGA1155	LGA1155
Base power
Base power	95 W	77 W
Unlocked
Unlocked	Yes	Yes
Memory support
Memory support	Up to 32 GB; two channels; DDR3-1066/1333; 21 GB/s maximum bandwidth as published by Intel; ECC not supported.	Up to 32 GB; two channels; DDR3-1333/1600; 25.6 GB/s maximum bandwidth; ECC not supported.
PCIe
PCIe	PCIe 2.0; up to 16 CPU lanes. Motherboard support determines available slot configurations.	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.
Process
Process	32 nm; Sandy Bridge; 37.5 × 37.5 mm package; 72.6°C Tcase limit, not a junction-temperature limit.	22 nm; Ivy Bridge; 3D tri-gate transistors; 37.5 × 37.5 mm package; 67.4°C Tcase limit, not a junction-temperature limit.
Cooler
Cooler	LGA1155-compatible cooling required. Intel's 5 January 2011 announcement gives 9 January availability for quad-core systems; APH Networks' contemporaneous exact-model review also identifies 9 January as the processor's release date.	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.