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

2 Cores, 4 Threads
@3.5GHz Kaby Lake (2017)

Real World Speed
Performance profile from 32,716 user samples
15,817 User Benchmarks
Best Bench: 121% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 94% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 94% Great: 121%
SPEED RANK: 9th / 1052
Gaming 105%
Desktop 100%
Workstation 76%
16,899 User Benchmarks
Best Bench: 64% Base clock 3.5 GHz
Worst Bench: 45% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 45% Great: 64%
SPEED RANK: 207th / 1052
Gaming 59%
Desktop 66%
Battle cruiser
Workstation 35%
Jet ski
Effective Speed
Effective CPU Speed
104 % Much faster effective speed.
58.9 %
SC Mixed
Avg. Single Core Mixed Speed
135 Pts Much faster single-core speed.
102 Pts
QC Mixed
Avg. Quad Core Mixed Speed
533 Pts Hugely faster quad-core speed.
272 Pts
MC Mixed
Avg. Multi Core Mixed Speed
776 Pts Hugely faster multi-core speed.
280 Pts
SC Mixed
OC Single Core Mixed Speed
156 Pts Much faster OC single-core speed.
110 Pts
QC Mixed
OC Quad Core Mixed Speed
616 Pts Hugely faster OC quad-core speed.
296 Pts
MC Mixed
OC Multi Core Mixed Speed
899 Pts Hugely faster OC multi-core speed.
300 Pts
Market Share
Based on 7,889,714 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.66 % Hugely higher market share.
0.57 %
Value For Money
112 % +4% 107 %
User Rating
UBM User Rating
115 % More popular.
99 %
Price (score)
$243 $59 Much cheaper.
5 Months Much more recent.
14 Months
Thermal Design Power (TDP)
95 Watts 54 Watts Much more energy efficient.
CPU Processing Cores
6 cores Hugely higher core count.
2 cores
CPU Processing Threads
6 threads Much higher thread count.
4 threads
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.
3.5 GHz
SC Int
Single Core Integer Speed
151 Pts Much faster single-core int speed.
107 Pts
SC Float
Single Core Floating Point Speed
162 Pts Much faster single-core fp speed.
112 Pts
QC Int
Quad Core Integer Speed
596 Pts Hugely faster quad-core int speed.
274 Pts
QC Float
Quad Core Floating Point Speed
645 Pts Hugely faster quad-core fp speed.
312 Pts
MC Int
Multi Core Integer Speed
868 Pts Hugely faster multi-core int speed.
275 Pts
MC Float
Multi Core Floating Point Speed
946 Pts Hugely faster multi-core fp speed.
313 Pts
CPU Architecture
Coffee Lake (2017) Kaby Lake (2017)
Motherboard Socket
Integrated Graphics
UHD 630 HD 610
Launch Date
Launch Date
Q4'17 Q1'17
9 MB 3 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2
Recommended Price
Recommended Customer Price
N/A $64.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015C (65W)
Memory Types
Memory Types
DDR4-2666 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 610
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.05 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
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 »

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]


The Intel G4560 is one of the first Pentium processors to feature Hyper-threading. This means that although the G4560 only has two physical processing cores, it is able to process four threads in parallel by sharing resources between the physical cores. This typically results in a 50% performance improvement over two physical cores alone. Comparing performance between the lowest spec Kaby Lake i3 7100 and the Pentium G4560 shows that in terms of both performance and specs, very little separates them (even virtualization technology VT-d is present on the Pentium). The Pentium does lack AVX 2.0 (Advanced Vector Instructions) and it trails the i3 7100 by 400 MHz (10%) but there is no longer a clear divide between Pentiums and Core i3s. Intel have achieved an almost continuous distribution of performance levels for each price point from the cheapest Pentium to the top end i7-7700K[Jan '17 CPUPro]


Processor Rankings (Price vs Performance) March 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]


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.

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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
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  • - Compare your components to the highest voted in class.
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Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $129
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $170SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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