IntelBX80648I75820K
AMDYD170XBCAEWOF

6 Cores, 12 Threads @3.3GHz, Haswell-E.
Release date: Q3 2014.

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

Real World Speed
Performance profile from 73,720 user samples
37,201 User Benchmarks
Best Bench: 102% Base clock 3.3 GHz, turbo 4.8 GHz (avg)
Worst Bench: 68% Base clock 3.3 GHz, turbo 1.2 GHz (avg)
Poor: 68% Great: 102%
SPEED RANK: 52nd / 1132
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 75%
Battleship
36,519 User Benchmarks
Best Bench: 99% Base clock 4.05 GHz
Worst Bench: 77% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Poor: 77% Great: 99%
SPEED RANK: 38th / 1132
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 95%
Nuclear submarine
Effective Speed
Effective CPU Speed
84.3 % 88.5 % +5%
SC Mixed
Avg. Single Core Mixed Speed
105 Pts 105 Pts
QC Mixed
Avg. Quad Core Mixed Speed
412 Pts 412 Pts
MC Mixed
Avg. Multi Core Mixed Speed
847 Pts 1166 Pts Much faster multi-core speed.
+38%
SC Mixed
OC Single Core Mixed Speed
128 Pts Slightly faster OC single-core speed.
+10%
116 Pts
QC Mixed
OC Quad Core Mixed Speed
504 Pts Slightly faster OC quad-core speed.
+8%
465 Pts
MC Mixed
OC Multi Core Mixed Speed
1016 Pts 1318 Pts Faster OC multi-core speed.
+30%
Market Share
Based on 11,605,804 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.39 % 0.51 % Much higher market share.
+31%
Value
Value For Money
75.6 % 106 % Much better value.
+40%
User Rating
UBM User Rating
66 % 107 % Much more popular.
+62%
Price
Price (score)
$391 $180 Much cheaper.
+54%
Age
Newest
50 Months 19 Months Much more recent.
+62%
TDP
Thermal Design Power (TDP)
140 Watts 95 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
12 threads 16 threads Much higher thread count.
+33%
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.3 GHz 3.4 GHz +3%
Turbo Clock
Turbo Clock Speed
3.6 GHz 3.8 GHz Slightly faster turbo frequency.
+6%
SC Int
Single Core Integer Speed
129 Pts Faster single-core int speed.
+15%
112 Pts
SC Float
Single Core Floating Point Speed
128 Pts +5% 122 Pts
QC Int
Quad Core Integer Speed
507 Pts Slightly faster quad-core int speed.
+14%
445 Pts
QC Float
Quad Core Floating Point Speed
507 Pts +5% 484 Pts
MC Int
Multi Core Integer Speed
964 Pts 1275 Pts Much faster multi-core int speed.
+32%
MC Float
Multi Core Floating Point Speed
1034 Pts 1329 Pts Faster multi-core fp speed.
+29%
Series
CPU Architecture
Haswell-E Zen
Socket
Motherboard Socket
LGA2011-V3 AM4
Graphics
Integrated Graphics
None None
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The Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers.  [Sep '14 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) October 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.

UserBenchmark of the month

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 $370Nvidia GTX 1070 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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