Intel
IntelBX80684I58600K
  

2 Cores, 4 Threads @1.6 GHz, Broadwell.
Release date ≈ Q1 2015.

6 Cores, 6 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

Real World Speed
Performance profile from 118,479 user samples
2,089 User Benchmarks
Best Bench: 45% Base clock 1.6 GHz, turbo 2.5 GHz (avg)
Worst Bench: 19% Base clock 1.6 GHz, turbo 0.5 GHz (avg)
Poor: 19% Great: 45%
SPEED RANK: 573rd / 1173
Gaming
Gaming 38%
Jet ski
Desktop
Desktop 43%
Speed boat
Workstation
Workstation 22%
Surfboard
116,390 User Benchmarks
Best Bench: 119% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 88% Base clock 3.6 GHz, turbo 1.75 GHz (avg)
Poor: 88% Great: 119%
SPEED RANK: 33rd / 1173
Gaming
Gaming 102%
UFO
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 73%
Battleship
Effective Speed
Effective CPU Speed
37.8 % 102 % Hugely faster effective speed.
+169%
SC Mixed
Avg. Single Core Mixed Speed
67.4 Pts 133 Pts Hugely faster single-core speed.
+97%
QC Mixed
Avg. Quad Core Mixed Speed
171 Pts 517 Pts Hugely faster quad-core speed.
+202%
MC Mixed
Avg. Multi Core Mixed Speed
175 Pts 740 Pts Hugely faster multi-core speed.
+323%
SC Mixed
OC Single Core Mixed Speed
83.2 Pts 155 Pts Hugely faster OC single-core speed.
+86%
QC Mixed
OC Quad Core Mixed Speed
201 Pts 607 Pts Hugely faster OC quad-core speed.
+202%
MC Mixed
OC Multi Core Mixed Speed
201 Pts 886 Pts Hugely faster OC multi-core speed.
+341%
Market Share
Based on 18,583,216 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 0.8 % Insanely higher market share.
+7,900%
User Rating
UBM User Rating
50 % 133 % Hugely more popular.
+166%
Age
Newest
52+ Months 21 Months Much more recent.
+60%
SC Int
Single Core Integer Speed
79.2 Pts 149 Pts Hugely faster single-core int speed.
+88%
SC Float
Single Core Floating Point Speed
87.6 Pts 162 Pts Hugely faster single-core fp speed.
+85%
QC Int
Quad Core Integer Speed
185 Pts 581 Pts Hugely faster quad-core int speed.
+214%
QC Float
Quad Core Floating Point Speed
216 Pts 644 Pts Hugely faster quad-core fp speed.
+198%
MC Int
Multi Core Integer Speed
186 Pts 835 Pts Hugely faster multi-core int speed.
+349%
MC Float
Multi Core Floating Point Speed
216 Pts 953 Pts Hugely faster multi-core fp speed.
+341%
Launch Date
Launch Date
Q1'15 Q4'17
Cache
Cache
3 MB 9 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price
$315.00 N/A
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
16 GB 64 GB
Memory Types
Memory Types
DDR3L 1333/1600, LPDDR3 1600/1866 DDR4-2666
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 6000 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
300 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
950 MHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
16 GB 64 GB
Package Size
Package Size
40mm x24mm x 1.3mm 37.5mm x 37.5mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
2.0 3.0
PCI Express Configurations
PCI Express Configurations ‡
4x1, 2x4 Up to 1x16 or 2x8 or 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
12 16

More specs » More specs »
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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]

MORE DETAILS

Processor Rankings (Price vs Performance) July 2019 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.
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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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