IntelBX80623I52500K
$246
AMDFD8350FRHKBOX
 $246 

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

8 Cores, 8 Threads @4.0GHz, Piledriver.
Release date: Q4 2012.

Real World Speed
Performance profile from 199,662 user samples
59,589 User Benchmarks
Best Bench: 89% Base clock 3.45 GHz
Worst Bench: 51% Base clock 3.6 GHz, turbo 0.65 GHz (avg)
Poor: 51% Great: 89%
SPEED RANK: 118th / 1128
Gaming
Gaming 71%
Battleship
Desktop
Desktop 70%
Battle cruiser
Workstation
Workstation 43%
Speed boat
140,073 User Benchmarks
Best Bench: 63% Base clock 4.75 GHz, turbo 4.7 GHz (avg)
Worst Bench: 46% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 46% Great: 63%
SPEED RANK: 272nd / 1128
Gaming
Gaming 55%
Gunboat
Desktop
Desktop 55%
Yacht
Workstation
Workstation 44%
Speed boat
Effective Speed
Effective CPU Speed
71.4 % Faster effective speed.
+29%
55.4 %
SC Mixed
Avg. Single Core Mixed Speed
98.9 Pts Much faster single-core speed.
+33%
74.1 Pts
QC Mixed
Avg. Quad Core Mixed Speed
369 Pts Much faster quad-core speed.
+36%
271 Pts
MC Mixed
Avg. Multi Core Mixed Speed
376 Pts 476 Pts Faster multi-core speed.
+27%
SC Mixed
OC Single Core Mixed Speed
121 Pts Much faster OC single-core speed.
+46%
83 Pts
QC Mixed
OC Quad Core Mixed Speed
469 Pts Much faster OC quad-core speed.
+50%
312 Pts
MC Mixed
OC Multi Core Mixed Speed
477 Pts 548 Pts Slightly faster OC multi-core speed.
+15%
Market Share
Based on 10,954,611 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.6 % 1.38 % Hugely higher market share.
+130%
Value
Value For Money
76 % 87.4 % Slightly better value.
+15%
User Rating
UBM User Rating
69 % +5% 66 %
Price
Price (score)
$246 $86 Much cheaper.
+65%
Age
Newest
92 Months 71 Months More recent.
+23%
TDP
Thermal Design Power (TDP)
95 Watts More energy efficient.
+24%
125 Watts
Cores
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
32 nm 32 nm
Base Clock
Base Clock Speed
3.3 GHz 4 GHz Faster base frequency.
+21%
Turbo Clock
Turbo Clock Speed
3.7 GHz 4.2 GHz Slightly faster turbo frequency.
+14%
SC Int
Single Core Integer Speed
121 Pts Much faster single-core int speed.
+36%
88.9 Pts
SC Float
Single Core Floating Point Speed
122 Pts Much faster single-core fp speed.
+55%
78.6 Pts
QC Int
Quad Core Integer Speed
474 Pts Much faster quad-core int speed.
+41%
335 Pts
QC Float
Quad Core Floating Point Speed
474 Pts Much faster quad-core fp speed.
+64%
289 Pts
MC Int
Multi Core Integer Speed
477 Pts 563 Pts Faster multi-core int speed.
+18%
MC Float
Multi Core Floating Point Speed
479 Pts 481 Pts +0%
Series
CPU Architecture
Sandy Bridge Piledriver
Socket
Motherboard Socket
LGA1155 AM3+
Graphics
Integrated Graphics
HD 3000 None
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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

In terms of raw single-core performance the flagship AMD FX-8350 is lagging behind intel's processor line-up by over two generations. The PassMark Single Thread scores for the i5-2500K vs the FX-8350 are 1863 to 1520 which shows that in terms of raw per-core processing the FX-8350 is lagging the two year old i5 by 23%. Where the AMD FX makes up is on multi-core performance, with a score of 9156 vs 6745, the AMD leads the Intel 2500K by 36% making it the far more capable multi-threaded server orientated performer. The AMD is also cheaper but significantly more power hungry which counts strongly against it as a sever proposition. The FX-8350 could be a good fit for specific server use cases but for general consumer use, which is single and dual core intensive, Intel's two year old i5-2500K delivers better performance. [May '13 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) September 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. 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

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CPUGPUSSD
Intel Core i7-8700K $360Nvidia GTX 1070 $344Samsung 850 Evo 250GB $86
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $110
Intel Core i5-8600K $260AMD RX 480 $280Samsung 850 Pro 256GB $135
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $150SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $899SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $160SanDisk Ultra Fit 32GB $11
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