4 Cores, 8 Threads @3.3 GHz, Sandy Bridge EP.
Release date ≤ Q1 2014.


4 Cores, 4 Threads @3.3GHz, Sandy Bridge.
Release date: Q1 2011.

Real World Speed
Performance profile from 140,822 user samples
681 User Benchmarks
Best Bench: 77% Base clock 3.3 GHz, turbo 3.2 GHz (avg)
Worst Bench: 61% Base clock 3.3 GHz, turbo 3.3 GHz (avg)
Poor: 61% Great: 77%
SPEED RANK: 297th / 1276
Gaming 70%
Desktop 73%
Workstation 55%
140,141 User Benchmarks
Best Bench: 87% Base clock 3.3 GHz, turbo 5.3 GHz (avg)
Worst Bench: 62% Base clock 3.3 GHz, turbo 0.5 GHz (avg)
Poor: 62% Great: 87%
SPEED RANK: 210th / 1276
Gaming 75%
Desktop 79%
Workstation 56%
Effective Speed
Effective CPU Speed
70.1 % 74.9 % Slightly faster effective speed.
Avg. Memory Latency
85.4 Pts 88.3 Pts +3%
Avg. Single Core Mixed Speed
85.2 Pts 95.8 Pts Faster single-core speed.
Avg. Dual Core Mixed Speed
169 Pts 189 Pts Faster dual-core speed.
Avg. Quad Core Mixed Speed
299 Pts 356 Pts Faster quad-core speed.
Avg. Octa Core Mixed Speed
432 Pts Faster octa-core speed.
360 Pts
OC Memory Latency
91.8 Pts 96.1 Pts +5%
OC Single Core Mixed Speed
92 Pts 119 Pts Faster OC single-core speed.
OC Dual Core Mixed Speed
183 Pts 237 Pts Faster OC dual-core speed.
OC Quad Core Mixed Speed
355 Pts 467 Pts Much faster OC quad-core speed.
OC Octa Core Mixed Speed
461 Pts 470 Pts +2%
Market Share
Based on 35,898,720 CPUs tested.
Market Share
Market Share (trailing 30 days)
0 % 0.31 % Insanely higher market share.
Value For Money
48.8 % 77.4 % Much better value.
User Rating
UBM User Rating
53 % 125 % Hugely more popular.
Price (score)
$1,040 $246 Much cheaper.
82+ Months Much more recent.
118 Months
OC Multi Core Mixed Speed
463 Pts 468 Pts +1%
Avg. Multi Core Mixed Speed
440 Pts Faster 64-core speed.
362 Pts
Launch Date
Launch Date
Q1'12 Q1'11
10 MB SmartCache 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
AVX SSE4.1/4.2, AVX
Recommended Price
Recommended Customer Price
$885.00 N/A
Max Turbo Frequency
Max Turbo Frequency
3.5 GHz 3.7 GHz
Bus Speed
Bus Speed
8 GT/s QPI 5 GT/s DMI
Expected Discontinuance
Expected Discontinuance
Q2'15 Q1'2013
Max Memory Size
Max Memory Size (dependent on memory type)
384 GB 32 GB
Memory Types
Memory Types
DDR3 800/1066/1333/1600 DDR3 1066/1333
Memory Channels
Max # of Memory Channels
4 2
Memory Bandwidth
Max Memory Bandwidth
51.2 GB/s 21 GB/s
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Package Size
Package Size
52.5mm x 45.0mm 37.5mm x 37.5mm
Max CPU Configuration
Max CPU Configuration
2 1
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Identity Protection Tech
Intel® Identity Protection Technology ‡
No Yes
Flex Memory Access
Intel® Flex Memory Access
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 2.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

More specs » More specs »

The i5-2500K is a second generation Sandy Bridge processor which is currently two generations old and nearly three years out of date. The many users that had the good sense to purchase this processor should feel in no hurry to upgrade as it's still no slouch, even by today's standards. The benchmark figures indicate that, even at stock clock rates, in terms of real-world performance this processor is approximately 20% slower than the best currently available, not bad considering its age. Given that the 2500K has an unlocked multiplier upping its performance by 10% with stock cooling should not pose much of a problem for the majority of owners. Here is a detailed performance comparison of the 2500K vs 4670K.  [Jul '13 CPUPro]


Processor Rankings (Price vs Performance) November 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

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Intel Core i5-9600K $190Nvidia RTX 3070 $500Crucial MX500 250GB $34
Intel Core i5-9400F $145Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $44
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $71SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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