Intel · Core

Core i5-2500K

Released January 2011

An unlocked four-core Sandy Bridge desktop processor with integrated graphics for compatible LGA1155 systems.

Cores
4/4
Boost
3.7 GHz
L3
6 MB
Power
95 W
Socket
LGA1155

What reviewers say

Contemporary reviews find strong performance and good value, particularly for upgrading from Core 2 systems. ServeTheHome finds encoding performance close to the more expensive Core i7-2600K in its tested workload, with low idle platform power. Integrated graphics suit media use better than demanding games. Overclocking requires a suitable motherboard and adequate cooling, while moving to LGA1155 adds motherboard cost.

From expertreviews.co.uk and servethehome.com

Cores and clocks

Cores
4
Threads
4
Base clock
3.3 GHz
Boost clock
3.7 GHz
L3 cache
6 MB
Cores
Four cores without Hyper-Threading; Intel Turbo Boost 2.0 and VT-x supported; VT-d not supported.
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.

Graphics and AI

Built-in graphics
Yes
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.

Platform

Socket
LGA1155
Base power
95 W
Unlocked
Yes
Memory support
Up to 32 GB; two channels; DDR3-1066/1333; 21 GB/s maximum bandwidth as published by Intel; ECC not supported.
PCIe
PCIe 2.0; up to 16 CPU lanes. Motherboard support determines available slot configurations.
Process
32 nm; Sandy Bridge; 37.5 × 37.5 mm package; 72.6°C Tcase limit, not a junction-temperature limit.
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.

Pros and cons

Pros

  • Unlocked CPU multiplier
  • Integrated HD Graphics 3000
  • Quick Sync Video support

Cons

  • No Hyper-Threading
  • PCIe 2.0 support
  • Requires DDR3 memory

Closest rivals

Model
CoresBoostL3PowerSocketReleased
4/83.8 GHz8 MB95 WLGA1155Jan 2011
4/83.6 GHz8 MB95 WLGA1156Jun 2010
4/43.8 GHz6 MB77 WLGA1155Apr 2012

Newer model: Core i5-3570K.

Sources

  1. intel.com/content/www/us/en/products/sku/52210/intel-core-i52500k-processor-6m-…
  2. intc.com/news-events/press-releases/detail/702/intel-brings-eye-candy-to-masses…
  3. intel.com/content/dam/www/public/us/en/documents/corporate-information/intel-co…
  4. aphnetworks.com/reviews/intel_core_i5_2500k
  5. aphnetworks.com/reviews/intel_core_i5_2500k/2

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