IntelBX80623I52500K
$246
AMDYD170XBCAEWOF
 $246 

4 Cores, 4 Threads
@3.3GHz Sandy Bridge (2011)

8 Cores, 16 Threads
@3.4GHz Zen (2017)

Real World Speed
Performance profile from 59,082 user samples
44,692 User Benchmarks
Best Bench: 90% Base clock 3.3 GHz, turbo 5.2 GHz (avg)
Worst Bench: 53% Base clock 3.6 GHz, turbo 0.55 GHz (avg)
Poor: 53% Great: 90%
SPEED RANK: 93rd / 980
Gaming
Gaming 72%
Battleship
Desktop
Desktop 70%
Battleship
Workstation
Workstation 43%
Speed boat
14,390 User Benchmarks
Best Bench: 99% Base clock 4.1 GHz, turbo 4.1 GHz (avg)
Worst Bench: 77% Base clock 4 GHz, turbo 4 GHz (avg)
Poor: 77% Great: 99%
SPEED RANK: 30th / 980
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 96%
Nuclear submarine
Effective Speed
Effective CPU Speed
71.5 % -24% 88.6 % Faster effective speed.
+24%
SC Mixed
Avg. Single Core Mixed Speed
99.3 Pts -8% 107 Pts Slightly faster single-core speed.
+8%
QC Mixed
Avg. Quad Core Mixed Speed
369 Pts -10% 407 Pts Slightly faster quad-core speed.
+10%
MC Mixed
Avg. Multi Core Mixed Speed
379 Pts -215% 1192 Pts Hugely faster multi-core speed.
+215%
SC Mixed
OC Single Core Mixed Speed
119 Pts +3% 116 Pts -3%
QC Mixed
OC Quad Core Mixed Speed
473 Pts +2% 463 Pts -2%
MC Mixed
OC Multi Core Mixed Speed
476 Pts -178% 1325 Pts Hugely faster OC multi-core speed.
+178%
Market Share
Based on 5,936,991 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.87 % Much higher market share.
+34%
0.65 % -34%
Value
Value For Money
76.1 % -21% 92.5 % Better value.
+21%
User Rating
UBM User Rating
84 % -18% 99 % More popular.
+18%
Price
Price (score)
$246 Slightly cheaper.
+5%
$260 -5%
Age
Newest
82 Months -90% 8 Months Hugely more recent.
+90%
TDP
Thermal Design Power (TDP)
95 Watts 0% 95 Watts 0%
Cores
CPU Processing Cores
4 cores -100% 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
4 threads -300% 16 threads Hugely higher thread count.
+300%
Lithography
Manufacturing process
32 nm -56% 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.3 GHz -3% 3.4 GHz +3%
Turbo Clock
Turbo Clock Speed
3.7 GHz -3% 3.8 GHz +3%
SC Int
Single Core Integer Speed
119 Pts Slightly faster single-core int speed.
+6%
112 Pts -6%
SC Float
Single Core Floating Point Speed
119 Pts -2% 121 Pts +2%
QC Int
Quad Core Integer Speed
472 Pts Slightly faster quad-core int speed.
+6%
445 Pts -6%
QC Float
Quad Core Floating Point Speed
473 Pts -2% 481 Pts +2%
MC Int
Multi Core Integer Speed
474 Pts -170% 1282 Pts Hugely faster multi-core int speed.
+170%
MC Float
Multi Core Floating Point Speed
476 Pts -179% 1330 Pts Hugely faster multi-core fp speed.
+179%
Series
CPU Architecture
Sandy Bridge (2011) Zen (2017)
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) November 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-7700K $288Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $250AMD RX 480 $240Samsung 850 Evo 500GB $150
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $240Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $160SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $17
Seagate Barracuda 7200.14 1TB $54Corsair Vengeance LPX DDR4 3200 C16 2x8GB $199SanDisk Ultra Fit 32GB $12
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