Intel Core i5 2500K 

Released January, 2011
  • 3.3 GHz
  • Quad core
  • Unlocked
8.6 Out of 10

The Intel Core i5 2500K is an amazing core from Intel, sporting four powerful cores, each clocking at the impressive speed of 3.3GHz, sporting a 6MB L3 cache and also having the option to reach up to 3.7GHz with Turbo Boost. The integrated Intel HD Graphics 3000 even further increases the overall performance of the 2500K, being about twice as fast as previous Intel HD Graphics cards. In conclusion this processor is a great piece of hardware, offering amazing speeds, great graphic capabilities and a reasonable price for this kind of performance.

CPUBoss Review Our evaluation of the Intel Core i5 2500K among desktop CPUs (over 75W)


Benchmark performance using all cores

Core i5 2500K
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Core i5 2500K
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Core i5 2500K
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Core i5 2500K
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Core i5 2500K
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


Are you paying a premium for performance?

Core i5 2500K
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


CPUBoss Score

Combination of all six facets

Core i5 2500K

Benchmarks Real world tests of the Intel Core i5 2500K

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Core i5 2500K
Core i5 3470

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 2500K
Core i5 3570K
Core i5 3470

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 2500K
Core i5 3470

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 2500K
2,530,000 MB/s
Core i5 3570K
2,650,000 MB/s
Core i5 3470
2,470,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i5 2500K
Core i5 3470
Core i5 3570K

GeekBench (64-bit) Data courtesy Primate Labs

Core i5 2500K
Core i5 3470
Core i5 3570K

PassMark Data courtesy Passmark

Core i5 2500K
Core i5 3470

PassMark (Single Core)

Core i5 2500K
Core i5 3470

Reviews Word on the street for the Intel Core i5 2500K

In the PCMark Vantage full-system performance test, the Core i5-2500K earned an overall score of 10,271—not at all far behind the Core i7-2600K's result of 10,368, and surprisingly close (all things considered) to the 10,970 we saw with the Core i7-970—Intel's lower-end six-core LGA1366 CPU.

In terms of 3D performance, the detail spec changes include an upgrade from DX10 to DX10.

Boots up faster, daily things are faster, gaming results in more FPS and it clocks 10x better and higher.


9.4 Out of 10

What People Are Saying Give it to me straight

Socket Type

Thing survived a PSU short that took out a P67-UD4-B3, hit 5.2ghz long enough for a bench to finish, tho i forget which (was a year ago).
by Asbestos (Oct, 2012)
I got this CPU because I could get great overcloking off it and native SATA 3.
by Sean-Webster (Nov, 2011)
Mine happens to be one of the "worse" chips, as it requires 1.49v for 4.9GHz.
by pioneerisloud (Nov, 2011)


It is only around $225 USD, is easily overclockable, and the LGA 1155 motherboards are also inexpensive.
by carrotman (Nov, 2011)
Nothing I have done besides P95, or FAHClient can get this CPU's usage above 50.
by White-Fire (Dec, 2011)
And even though I got it for 210, you can get this chip way cheaper maybe $180, from here at OCN, or your local microcenter.
by mend0k (Dec, 2011)


This chip has been an absolute dream for overclocking, fairly easy to do and the performance boost you get in comparison with older platforms is mind blowing.
by munaim1 (Dec, 2011)
Pros: Fast,Solid...and overclocks like nothing you've ever seen...on air.
by PROBN4LYFE (Nov, 2011)
Pros: Great performance and overclocking ability, never really gets hot, and it is extremely cheap for how good it is.
by carrotman (Nov, 2011)


i use this for absolutely everything in between the lines of hardcore gaming and 3D modeling and this processor has never let me down.
by shadowhero18 (May, 2012)
It's cheap and crushes any game you throw at it.
by CaptainIntel (Jan, 2012)
The integrated video may not be tops, but otherwise it's currently hard to do much better than this Editors' Choice–worthy CPU if you're building a media-minded or family-focused system.
by PCMag (Apr, 2011)


Although it doesn't HT, and is "just" a quad core, its not like games need anything more, which makes this the perfect gaming chip.
by mend0k (Dec, 2011)
Our recommendation for the Core i5-2500K in this department remains what we determined with the Core i7-2600K: Add a discrete video card if you have even the slightest interest in playing 3D games on your Sandy Bridge system.
by PCMag (Apr, 2011)
While people who get hexa or even octa core processors for gaming just waste their money and waste energy powering up those extra cores.
by mend0k (Dec, 2011)

Specifications Full list of technical specs


Clock speed 3.3 GHz
Turbo clock speed 3.7 GHz
Cores Quad core
Socket type LGA 1155
Is unlocked Yes


Has a NX bit Yes
Supports trusted computing No
Has virtualization support Yes
Instruction set extensions
  1. SSE
  2. MMX
  3. EM64T
  4. SSE2
  5. AVX
  6. AES
  7. SSE4
  8. SSE3
  9. SSE4.2
  10. SSE4.1
  11. Supplemental SSE3
Supports dynamic frequency scaling Yes

integrated graphics

Label Intel® HD Graphics 3000
Latest DirectX 10.1
Number of displays supported 2
GPU clock speed 850 MHz
Turbo clock speed 1,100 MHz
3DMark06 5,275

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1333
  2. DDR3-1066
  3. DDR3
Channels Dual Channel
Supports ECC No
Maximum bandwidth 21,333.32 MB/s
Maximum memory size 32,768 MB


Architecture x86-64
Threads 4 threads
L2 cache 1 MB
L2 cache per core 0.25 MB/core
L3 cache 6 MB
L3 cache per core 1.5 MB/core
Manufacture process 32 nm
Transistor count 1,160,000,000
Max CPUs 1
Clock multiplier 33
Voltage range 1.2 - 1.5V
Operating temperature 5 - 72.6°C


Overclock popularity 3,179
Overclock review score 5
Overclocked clock speed 4.98 GHz
Overclocked clock speed (Water) 4.88 GHz
PassMark (Overclocked) 5,433.6
Overclocked clock speed (Air) 4.98 GHz

power consumption

Annual home energy cost 41.29 $/year
Annual commercial energy cost 110.03 $/year
Performance per watt 6.79 pt/W
Idle power consumption 73.4W
Peak power consumption 125.6W
Typical power consumption 112.55W


Architecture DMI
Transfer rate 5,000 MT/s
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Showing 1 comment.
still a legend, refer to -,4312.html
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