IntelBX80684I58600K
AMDYD150XBBAEBOX

6 Cores, 6 Threads
@3.6GHz Coffee Lake (2017)

4 Cores, 8 Threads
@3.5GHz Zen (2017)

Real World Speed
Performance profile from 21,789 user samples
12,105 User Benchmarks
Best Bench: 123% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 95% Base clock 3.6 GHz, turbo 2.25 GHz (avg)
Poor: 95% Great: 123%
SPEED RANK: 8th / 985
Gaming
Gaming 105%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 77%
Battleship
9,684 User Benchmarks
Best Bench: 84% Base clock 4 GHz, turbo 4.45 GHz (avg)
Worst Bench: 65% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 65% Great: 84%
SPEED RANK: 69th / 985
Gaming
Gaming 76%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
105 % Much faster effective speed.
+39%
75.7 %
SC Mixed
Avg. Single Core Mixed Speed
136 Pts Much faster single-core speed.
+31%
104 Pts
QC Mixed
Avg. Quad Core Mixed Speed
535 Pts Much faster quad-core speed.
+43%
373 Pts
MC Mixed
Avg. Multi Core Mixed Speed
782 Pts Much faster multi-core speed.
+34%
585 Pts
SC Mixed
OC Single Core Mixed Speed
158 Pts Much faster OC single-core speed.
+39%
114 Pts
QC Mixed
OC Quad Core Mixed Speed
630 Pts Much faster OC quad-core speed.
+49%
424 Pts
MC Mixed
OC Multi Core Mixed Speed
928 Pts Much faster OC multi-core speed.
+44%
645 Pts
Market Share
Based on 7,461,238 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.08 % Hugely higher market share.
+192%
0.37 %
Value
Value For Money
111 % Better value.
+17%
94.8 %
User Rating
UBM User Rating
116 % More popular.
+29%
90 %
Price
Price (score)
$250 $160 Much cheaper.
+36%
Age
Newest
4 Months Much more recent.
+60%
10 Months
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
6 threads 8 threads Much higher thread count.
+33%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz +3% 3.5 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz Faster turbo frequency.
+16%
3.7 GHz
SC Int
Single Core Integer Speed
154 Pts Much faster single-core int speed.
+40%
110 Pts
SC Float
Single Core Floating Point Speed
162 Pts Much faster single-core fp speed.
+37%
118 Pts
QC Int
Quad Core Integer Speed
613 Pts Much faster quad-core int speed.
+50%
410 Pts
QC Float
Quad Core Floating Point Speed
649 Pts Much faster quad-core fp speed.
+47%
441 Pts
MC Int
Multi Core Integer Speed
900 Pts Much faster multi-core int speed.
+44%
626 Pts
MC Float
Multi Core Floating Point Speed
966 Pts Much faster multi-core fp speed.
+49%
648 Pts
Series
CPU Architecture
Coffee Lake (2017) Zen (2017)
Socket
Motherboard Socket
FCLGA1151 AM4
Graphics
Integrated Graphics
UHD 630 None
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The unlocked hex-core i5-8600K from Intel’s latest Coffee Lake generation of processors is the new flagship of the i5 series, succeeding the Kaby Lake quad-core i5-7600K. The 8th generation of processors brings the largest performance uplift since Sandy Bridge by adding more cores at each of the i3, i5 and i7 product lines. Like the other Coffee Lake processors, the i5-8600K is built upon optimized 14nm architecture, marginally improved upon from Kaby Lake and Skylake. The 8600K has a 95W TDP and a nominal stock clock of 3.6 GHz, which boosts to 4.1 GHz for all six cores, 4.2 GHz for dual/quad and 4.3 GHz for single core. Early benchmarks put the i5-8600K’s effective speed 15% ahead of the i5-7600K. A 50% increase in multi-core speed is explained by two additional cores and thanks to the quad-core clock bump from 4 GHz on the 7600K to 4.2 GHz on the 8600K there is also an additional 5% performance boost across all workloads. All Coffee Lake processors require a 300-series chipset, making a straight CPU upgrade unfeasible despite sharing the same socket as their Z270 predecessors. Even though most games still use less than 4 cores simultaneously, the i5-8600K is a great choice for gamers (especially streamers) but for $80 less, the 8350K which is faster than last years 7600K and only marginally weaker for gaming than the 8600K is certainly well worth considering as well. [Oct '17 CPUPro]

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The quad core and octa threaded Ryzen 1500X is a sub-$200 chip based on AMD's latest Zen architecture. It is released this month as part of the Ryzen 5 launch – a mid-market range specced out to challenge Intel's i5 series and yield considerably better multi-threaded performance at budget prices. Comparing the i5-7600K shows that the 7600K is 20% faster for single and quad core workloads but looses by 20% for multi-core workloads. The Ryzen 5 line-up also includes the 6 core 12 threaded 1600X. By comparison, the 1500X is 24% less expensive, comes with a Wraith Spire cooler and impressively yields very similar single and quad core performance, but multi-core performance lags 50% behind the 1600X. Both chips can be overclocked, but out the box, the base and boost clock speeds are 3.5GHz and 3.7GHz for the 1500X and 3.6GHz and 4.0GHz for the 1600X. The 1500X is a very reasonable CPU for the money, which thanks to AMD's recent IPC improvements, punches far above its weight for multi-threaded performance by Intel's standards. [Apr '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 $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $125
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 $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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