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 280,904 user samples
92,521 User Benchmarks
Best Bench: 89% Base clock 4.8 GHz, turbo 7.1 GHz (avg)
Worst Bench: 48% Base clock 3.6 GHz, turbo 1.05 GHz (avg)
Poor: 48% Great: 89%
SPEED RANK: 163rd / 1159
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 42%
Speed boat
188,383 User Benchmarks
Best Bench: 62% Base clock 4.85 GHz, turbo 4.85 GHz (avg)
Worst Bench: 45% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 45% Great: 62%
SPEED RANK: 297th / 1159
Gaming
Gaming 55%
Yacht
Desktop
Desktop 54%
Yacht
Workstation
Workstation 44%
Speed boat
Effective Speed
Effective CPU Speed
69.4 % Faster effective speed.
+26%
54.9 %
SC Mixed
Avg. Single Core Mixed Speed
97.3 Pts Much faster single-core speed.
+32%
73.8 Pts
QC Mixed
Avg. Quad Core Mixed Speed
357 Pts Much faster quad-core speed.
+33%
269 Pts
MC Mixed
Avg. Multi Core Mixed Speed
364 Pts 465 Pts Faster multi-core speed.
+28%
SC Mixed
OC Single Core Mixed Speed
119 Pts Much faster OC single-core speed.
+44%
82.7 Pts
QC Mixed
OC Quad Core Mixed Speed
467 Pts Much faster OC quad-core speed.
+51%
309 Pts
MC Mixed
OC Multi Core Mixed Speed
470 Pts 536 Pts Slightly faster OC multi-core speed.
+14%
Market Share
Based on 17,705,287 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.53 % 1.27 % Hugely higher market share.
+140%
Value
Value For Money
73.9 % 92.7 % Better value.
+25%
User Rating
UBM User Rating
73 % +4% 70 %
Price
Price (score)
$246 $72 Much cheaper.
+71%
Age
Newest
101 Months 80 Months More recent.
+21%
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
119 Pts Much faster single-core int speed.
+36%
87.3 Pts
SC Float
Single Core Floating Point Speed
120 Pts Much faster single-core fp speed.
+52%
78.9 Pts
QC Int
Quad Core Integer Speed
468 Pts Much faster quad-core int speed.
+44%
324 Pts
QC Float
Quad Core Floating Point Speed
467 Pts Much faster quad-core fp speed.
+61%
290 Pts
MC Int
Multi Core Integer Speed
468 Pts 551 Pts Faster multi-core int speed.
+18%
MC Float
Multi Core Floating Point Speed
471 Pts +1% 467 Pts
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) June 2019 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
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AMD Ryzen 5 2600 $144Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $79SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $639SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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