IntelBX80623I52500K
$246
AMDYD170XBCAEWOF
 $246 

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

8 Cores, 16 Threads @3.4GHz, Zen.
Release date: Q1 2017.

Real World Speed
Performance profile from 94,299 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
34,710 User Benchmarks
Best Bench: 98% Base clock 4.05 GHz
Worst Bench: 76% Base clock 3.4 GHz, turbo 3.45 GHz (avg)
Poor: 76% Great: 98%
SPEED RANK: 37th / 1128
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 94%
Nuclear submarine
Effective Speed
Effective CPU Speed
71.4 % 88.2 % Faster effective speed.
+24%
SC Mixed
Avg. Single Core Mixed Speed
98.9 Pts 105 Pts Slightly faster single-core speed.
+6%
QC Mixed
Avg. Quad Core Mixed Speed
369 Pts 410 Pts Slightly faster quad-core speed.
+11%
MC Mixed
Avg. Multi Core Mixed Speed
376 Pts 1160 Pts Hugely faster multi-core speed.
+209%
SC Mixed
OC Single Core Mixed Speed
121 Pts +4% 116 Pts
QC Mixed
OC Quad Core Mixed Speed
469 Pts +2% 460 Pts
MC Mixed
OC Multi Core Mixed Speed
477 Pts 1315 Pts Hugely faster OC multi-core speed.
+176%
Market Share
Based on 10,922,859 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.64 % Higher market share.
+23%
0.52 %
Value
Value For Money
76 % 98 % Better value.
+29%
User Rating
UBM User Rating
69 % 107 % Much more popular.
+55%
Price
Price (score)
$246 $220 Slightly cheaper.
+11%
Age
Newest
92 Months 18 Months Hugely more recent.
+80%
TDP
Thermal Design Power (TDP)
95 Watts 95 Watts
Cores
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
4 threads 16 threads Hugely higher thread count.
+300%
Lithography
Manufacturing process
32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.3 GHz 3.4 GHz +3%
Turbo Clock
Turbo Clock Speed
3.7 GHz 3.8 GHz +3%
SC Int
Single Core Integer Speed
121 Pts Slightly faster single-core int speed.
+9%
111 Pts
SC Float
Single Core Floating Point Speed
122 Pts +2% 120 Pts
QC Int
Quad Core Integer Speed
474 Pts Slightly faster quad-core int speed.
+7%
443 Pts
QC Float
Quad Core Floating Point Speed
474 Pts 480 Pts +1%
MC Int
Multi Core Integer Speed
477 Pts 1270 Pts Hugely faster multi-core int speed.
+166%
MC Float
Multi Core Floating Point Speed
479 Pts 1323 Pts Hugely faster multi-core fp speed.
+176%
Series
CPU Architecture
Sandy Bridge Zen
Socket
Motherboard Socket
LGA1155 AM4
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]

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The AMD Ryzen 7 1700X isn't due for release until next week but two of our users has already submitted benchmarks. Comparing the quad and single core scores from our samples shows a relative 4.3% boost on the single core score so it’s possible that turbo wasn’t fully engaged (12% turbo boost expected). These preliminary results are seriously impressive as they put Zen’s IPC between 0% and 9% below Intel’s Kaby Lake. Even in the worst case scenario these results are still impressive. Comparing Intel’s $1,000 6900K and the 1700X shows that AMD delivers comparable performance for half the price! A shake-up of the CPU market will unfold as Zen rolls out. If Ryzen CPUs can overclock to 4.6+ GHz they will likely dominate the entire market putting a very welcome end to the monotonous tick-tock of recent years. [Feb '17 CPUPro]

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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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The Best.
CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $344Samsung 850 Evo 250GB $87
AMD Ryzen 5 1600 $145Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $105
Intel Core i7-7700K $329AMD 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) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $160SanDisk Ultra Fit 32GB $11
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