IntelBX80677I57600
IntelBX80623I52500K
$246

4 Cores, 4 Threads @3.5GHz, Kaby Lake.
Release date: Q1 2017.

VS
About
 $246 

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

Real World Speed
Performance profile from 113,860 user samples
17,469 User Benchmarks
Best Bench: 75% Base clock 3.5 GHz, turbo 3.9 GHz (avg)
Worst Bench: 51% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 51% Great: 75%
SPEED RANK: 104th / 1182
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 79%
Battleship
Workstation
Workstation 41%
Speed boat
96,391 User Benchmarks
Best Bench: 75% Base clock 3.3 GHz, turbo 4.8 GHz (avg)
Worst Bench: 43% Base clock 3.3 GHz, turbo 0.5 GHz (avg)
Poor: 43% Great: 75%
SPEED RANK: 191st / 1182
Gaming
Gaming 58%
Gunboat
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 35%
Jet ski
Effective Speed
Effective CPU Speed
67.4 % Faster effective speed.
+16%
58.2 %
1-Core
Avg. Single Core Mixed Speed
116 Pts Faster single-core speed.
+19%
97.2 Pts
2-Core
Avg. Dual Core Mixed Speed
229 Pts Faster dual-core speed.
+19%
192 Pts
4-Core
Avg. Quad Core Mixed Speed
418 Pts Faster quad-core speed.
+15%
363 Pts
8-Core
Avg. Octa Core Mixed Speed
427 Pts Faster octa-core speed.
+16%
368 Pts
64-Core
Avg. Multi Core Mixed Speed
431 Pts Faster 64-core speed.
+16%
370 Pts
1-Core
OC Single Core Mixed Speed
126 Pts Slightly faster OC single-core speed.
+6%
119 Pts
2-Core
OC Dual Core Mixed Speed
247 Pts +4% 237 Pts
4-Core
OC Quad Core Mixed Speed
474 Pts +1% 470 Pts
8-Core
OC Octa Core Mixed Speed
474 Pts +1% 468 Pts
64-Core
OC Multi Core Mixed Speed
477 Pts +1% 471 Pts
Market Share
Based on 20,162,209 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.12 % 0.38 % Hugely higher market share.
+217%
Value
Value For Money
71 % Better value.
+18%
60.1 %
User Rating
UBM User Rating
64 % 65 % +2%
Price
Price (score)
$230 Slightly cheaper.
+7%
$246
Age
Newest
32 Months Much more recent.
+69%
104 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+32%
95 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 4 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
3.5 GHz Slightly faster base frequency.
+6%
3.3 GHz
Turbo Clock
Turbo Clock Speed
4.1 GHz Slightly faster turbo frequency.
+11%
3.7 GHz
Series
CPU Architecture
Kaby Lake Sandy Bridge
Socket
Motherboard Socket
FCLGA1151 LGA1155
Graphics
Integrated Graphics
HD 630 HD 3000
Launch Date
Launch Date
Q1'17 Q1'11
Cache
Cache
6 MB 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX
Lithography
Lithography
14 nm 32 nm
Recommended Price
Recommended Customer Price
$213.00 - $224.00 N/A
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR3 1066/1333
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® HD Graphics 3000
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 850 MHz
# of Displays Supported
# of Displays Supported ‡
3 2
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.1 GHz
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 2.0

More specs » More specs »
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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]

MORE DETAILS

Processor Rankings (Price vs Performance) September 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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]

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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 userbenchmark.com.
  • - 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.

 Frequently Asked Questions

 Best User Rated

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