IntelBX80648I75820K
AMDYD180XBCAEWOF

6 Cores, 12 Threads
@3.3GHz Haswell-E (2014)

8 Cores, 16 Threads
@3.6GHz Zen (2017)

Real World Speed
Performance profile from 45,073 user samples
30,527 User Benchmarks
Best Bench: 104% Base clock 3.3 GHz, turbo 4.7 GHz (avg)
Worst Bench: 67% Base clock 3.3 GHz, turbo 1.2 GHz (avg)
Poor: 67% Great: 104%
SPEED RANK: 37th / 985
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 82%
Aircraft carrier
Workstation
Workstation 75%
Battleship
14,546 User Benchmarks
Best Bench: 101% Base clock 4.05 GHz, turbo 4.45 GHz (avg)
Worst Bench: 82% Base clock 3.6 GHz, turbo 0.55 GHz (avg)
Poor: 82% Great: 101%
SPEED RANK: 22nd / 985
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 100%
Nuclear submarine
Effective Speed
Effective CPU Speed
85.1 % 92.9 % Slightly faster effective speed.
+9%
SC Mixed
Avg. Single Core Mixed Speed
106 Pts 110 Pts +4%
QC Mixed
Avg. Quad Core Mixed Speed
418 Pts 433 Pts +4%
MC Mixed
Avg. Multi Core Mixed Speed
843 Pts 1228 Pts Much faster multi-core speed.
+46%
SC Mixed
OC Single Core Mixed Speed
131 Pts Slightly faster OC single-core speed.
+10%
119 Pts
QC Mixed
OC Quad Core Mixed Speed
520 Pts Slightly faster OC quad-core speed.
+10%
473 Pts
MC Mixed
OC Multi Core Mixed Speed
1029 Pts 1350 Pts Much faster OC multi-core speed.
+31%
Market Share
Based on 7,414,544 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.39 % 0.64 % Much higher market share.
+64%
Value
Value For Money
76.2 % 88.2 % Better value.
+16%
User Rating
UBM User Rating
83 % 97 % More popular.
+17%
Price
Price (score)
$391 $335 Slightly cheaper.
+14%
Age
Newest
42 Months 11 Months Much more recent.
+74%
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 3.6 GHz Slightly faster base frequency.
+9%
Turbo Clock
Turbo Clock Speed
3.6 GHz 4 GHz Slightly faster turbo frequency.
+11%
SC Int
Single Core Integer Speed
130 Pts Slightly faster single-core int speed.
+14%
114 Pts
SC Float
Single Core Floating Point Speed
132 Pts Slightly faster single-core fp speed.
+7%
123 Pts
QC Int
Quad Core Integer Speed
513 Pts Slightly faster quad-core int speed.
+12%
456 Pts
QC Float
Quad Core Floating Point Speed
520 Pts Slightly faster quad-core fp speed.
+6%
492 Pts
MC Int
Multi Core Integer Speed
980 Pts 1310 Pts Much faster multi-core int speed.
+34%
MC Float
Multi Core Floating Point Speed
1048 Pts 1356 Pts Faster multi-core fp speed.
+29%
Series
CPU Architecture
Haswell-E (2014) Zen (2017)
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 Ryzen 7 1800X is AMD's flagship Ryzen CPU. Clocked at 3.6 GHz with a turbo frequency of 4.0 GHz (stock) this chip offers a staggering level of multi-core performance. Comparing the 1800X with the Intel i7-6850K shows that the 1800X delivers 25% more multi-core throughput than its more expensive counterpart. Historically AMD's CPU architecture has had a much lower IPC than Intel's and consequently Intel have dominated the CPU market since 2009. Comparing IPC between Intel's Kaby Lake and Ryzen shows a maximum gap of just 9%. A very welcome shake-up of the CPU market will unfold as the remaining Ryzen 5 and Ryzen 3 models are rolled out. For now the 1800X offers workstation users similar processing power to a $1,000 i7-6900K at half the price. [Mar '17 CPUPro]

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Processor Rankings (Price vs Performance) February 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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 i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $87
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $146
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $200SanDisk Extreme 16GB $18
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