IntelBX80684I58600K
IntelBX8070110900K

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

10 Cores, 20 Threads @3.7GHz, Comet Lake.
Release date: Q2 2020.

CSGO
Dust 2 1080p Max
280 EFps 313 EFps Better CSGO EFps.
+12%
GTAV
Franklin & Lamar 1080p Max
110 EFps +1% 109 EFps
Overwatch
Temple of Anubis 1080p Max
138 EFps 138 EFps
PUBG
M249 Training 1080p Max
135 EFps 142 EFps Slightly Better PUBG EFps.
+5%
Fortnite
UserBenchmark Island 1080p Max
133 EFps 135 EFps +2%
Real World Speed
Performance profile from 315,679 user samples
252,531 User Benchmarks
Best Bench: 103% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 82% Base clock 3.6 GHz, turbo 4.05 GHz (avg)
Poor: 82% Great: 103%
SPEED RANK: 47th / 1316
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 77%
Battleship
63,148 User Benchmarks
Best Bench: 107% Base clock 3.7 GHz, turbo 5.25 GHz (avg)
Worst Bench: 92% Base clock 3.7 GHz, turbo 0.95 GHz (avg)
Poor: 92% Great: 107%
SPEED RANK: 10th / 1316
Gaming
Gaming 101%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 110%
UFO
Effective Speed
Effective CPU Speed
92.6 % 101 % Slightly faster effective speed.
+9%
Memory
Avg. Memory Latency
91.5 Pts 92 Pts +1%
1-Core
Avg. Single Core Mixed Speed
131 Pts 152 Pts Faster single-core speed.
+16%
2-Core
Avg. Dual Core Mixed Speed
259 Pts 299 Pts Faster dual-core speed.
+15%
4-Core
Avg. Quad Core Mixed Speed
508 Pts 592 Pts Faster quad-core speed.
+17%
8-Core
Avg. Octa Core Mixed Speed
722 Pts 1144 Pts Much faster octa-core speed.
+58%
Memory
OC Memory Latency
96.8 Pts 97.5 Pts +1%
1-Core
OC Single Core Mixed Speed
153 Pts 161 Pts Slightly faster OC single-core speed.
+5%
2-Core
OC Dual Core Mixed Speed
303 Pts 317 Pts +5%
4-Core
OC Quad Core Mixed Speed
595 Pts 634 Pts Slightly faster OC quad-core speed.
+7%
8-Core
OC Octa Core Mixed Speed
871 Pts 1248 Pts Much faster OC octa-core speed.
+43%
Market Share
Based on 46,411,860 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.38 % 0.42 % Higher market share.
+11%
Value
Value For Money
97 % Better value.
+12%
86.8 %
User Rating
UBM User Rating
77 % More popular.
+17%
66 %
Price
Price (score)
$235 Much cheaper.
+52%
$488
Age
Newest
47 Months 16 Months Much more recent.
+66%
TDP
Thermal Design Power (TDP)
95 Watts More energy efficient.
+24%
125 Watts
Cores
CPU Processing Cores
6 cores 10 cores Much higher core count.
+67%
Threads
CPU Processing Threads
6 threads 20 threads Hugely higher thread count.
+233%
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 5.3 GHz Faster turbo frequency.
+23%
64-Core
OC Multi Core Mixed Speed
870 Pts 2114 Pts Hugely faster OC 64-core speed.
+143%
64-Core
Avg. Multi Core Mixed Speed
729 Pts 1967 Pts Hugely faster 64-core speed.
+170%
Series
CPU Architecture
Coffee Lake Comet Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1200
Graphics
Integrated Graphics
UHD 630 UHD 630
Launch Date
Launch Date
Q4'17 Q2'20
Cache
Cache
9 MB 20 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency
4.30 GHz 5.30 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 8 GT/s
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Types
Memory Types
DDR4-2666 DDR4-2933
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.20 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 2
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
3.0 3
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

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 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

Intel’s Comet Lake flagship, the i9-10900K, is the fastest gaming and desktop CPU currently available. This ten-core hyperthreaded processor can easily be overclocked so that all twenty threads run at an eye-watering 5.2 GHz. Whilst its stellar performance is second to none, it comes with a premium price tag of $488 USD. The 10900K also requires a new (Z490) LGA1200 motherboard, which Intel has indicated will remain compatible with Rocket Lake CPUs which are due later this year. Whilst AMD’s competing $420 USD Ryzen 3900X and $675 USD Ryzen 3950X do have a greater number of cores, their lower clock speeds and higher memory latency handicap them in non-rendering use cases. Overall, the 10900K has a 16% effective speed advantage over both the 3900X and 3950X. Users that do a lot of rendering should investigate dedicated hardware encoders such as NVENC and Quick Sync as these are far more efficient than CPU based rendering. Comparing the 10900K and 10700K shows that, when paired with a 2060S, the 10700K offers comparable gaming performance for 20% less money. [Jun '20 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) September 2021 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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.
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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.

 Frequently Asked Questions

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Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
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