IntelBX80684I58600K
IntelBX80662I36100

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

2 Cores, 4 Threads
@3.7GHz Skylake (2015)

Real World Speed
Performance profile from 74,648 user samples
37,591 User Benchmarks
Best Bench: 118% Base clock 3.6 GHz, turbo 5.15 GHz (avg)
Worst Bench: 92% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 92% Great: 118%
SPEED RANK: 10th / 1117
Gaming
Gaming 102%
UFO
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 74%
Battleship
37,057 User Benchmarks
Best Bench: 67% Base clock 2.8 GHz, turbo 3.7 GHz (avg)
Worst Bench: 49% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 49% Great: 67%
SPEED RANK: 214th / 1117
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 36%
Jet ski
Effective Speed
Effective CPU Speed
102 % Much faster effective speed.
+67%
61.1 %
SC Mixed
Avg. Single Core Mixed Speed
133 Pts Faster single-core speed.
+27%
105 Pts
QC Mixed
Avg. Quad Core Mixed Speed
519 Pts Hugely faster quad-core speed.
+83%
283 Pts
MC Mixed
Avg. Multi Core Mixed Speed
755 Pts Hugely faster multi-core speed.
+159%
291 Pts
SC Mixed
OC Single Core Mixed Speed
154 Pts Much faster OC single-core speed.
+35%
114 Pts
QC Mixed
OC Quad Core Mixed Speed
606 Pts Hugely faster OC quad-core speed.
+94%
312 Pts
MC Mixed
OC Multi Core Mixed Speed
890 Pts Hugely faster OC multi-core speed.
+183%
314 Pts
Market Share
Based on 9,825,748 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.51 % Hugely higher market share.
+260%
0.42 %
Value
Value For Money
109 % Better value.
+26%
86.6 %
User Rating
UBM User Rating
122 % Hugely more popular.
+97%
62 %
Price
Price (score)
$245 $115 Much cheaper.
+53%
Age
Newest
9 Months Much more recent.
+73%
33 Months
TDP
Thermal Design Power (TDP)
95 Watts 47 Watts Much more energy efficient.
+51%
Cores
CPU Processing Cores
6 cores Hugely higher core count.
+200%
2 cores
Threads
CPU Processing Threads
6 threads Much higher thread count.
+50%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.7 GHz +3%
Turbo Clock
Turbo Clock Speed
4.3 GHz Faster turbo frequency.
+16%
3.7 GHz
SC Int
Single Core Integer Speed
149 Pts Much faster single-core int speed.
+34%
111 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
580 Pts Hugely faster quad-core int speed.
+101%
288 Pts
QC Float
Quad Core Floating Point Speed
637 Pts Hugely faster quad-core fp speed.
+94%
328 Pts
MC Int
Multi Core Integer Speed
846 Pts Hugely faster multi-core int speed.
+193%
289 Pts
MC Float
Multi Core Floating Point Speed
948 Pts Hugely faster multi-core fp speed.
+188%
329 Pts
Series
CPU Architecture
Coffee Lake (2017) Skylake (2015)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 530
Launch Date
Launch Date
Q4'17 Q3'15
Cache
Cache
9 MB 3 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Embedded Options Available
Embedded Options Available
No Yes
Recommended Price
Recommended Customer Price
N/A $117.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015C (65W)
Memory Types
Memory Types
DDR4-2666 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 530
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.05 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
ADVERTISEMENT

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]

MORE DETAILS

Processor Rankings (Price vs Performance) July 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]

ADVERTISEMENT

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i7-7700K $300AMD RX 480 $280Samsung 850 Pro 256GB $136
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $58HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback