IntelBX80684I78086K
IntelBX80684I58600K

6 Cores, 12 Threads @4.00 GHz, Coffee Lake.
Release date ≈ Q2 2018.

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

Real World Speed
Performance profile from 279,965 user samples
40,103 User Benchmarks
Best Bench: 101% Base clock 4 GHz, turbo 5.2 GHz (avg)
Worst Bench: 80% Base clock 0.8 GHz, turbo 0.8 GHz (avg)
Poor: 80% Great: 101%
SPEED RANK: 76th / 1358
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 83%
Aircraft carrier
239,862 User Benchmarks
Best Bench: 100% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 79% Base clock 3.6 GHz, turbo 4.05 GHz (avg)
Poor: 79% Great: 100%
SPEED RANK: 80th / 1358
Gaming
Gaming 90%
Nuclear submarine
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 75%
Battleship
Effective Speed
Effective CPU Speed
90.9 % +1% 90.4 %
Memory
Avg. Memory Latency
91.6 Pts +1% 90.8 Pts
1-Core
Avg. Single Core Mixed Speed
133 Pts Slightly faster single-core speed.
+6%
126 Pts
2-Core
Avg. Dual Core Mixed Speed
257 Pts +3% 250 Pts
4-Core
Avg. Quad Core Mixed Speed
485 Pts 488 Pts +1%
8-Core
Avg. Octa Core Mixed Speed
807 Pts Faster octa-core speed.
+16%
693 Pts
Memory
OC Memory Latency
97.2 Pts +1% 96.5 Pts
1-Core
OC Single Core Mixed Speed
151 Pts Slightly faster OC single-core speed.
+6%
143 Pts
2-Core
OC Dual Core Mixed Speed
299 Pts +5% 286 Pts
4-Core
OC Quad Core Mixed Speed
568 Pts 568 Pts
8-Core
OC Octa Core Mixed Speed
940 Pts Faster OC octa-core speed.
+14%
827 Pts
Market Share
Based on 54,637,986 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.06 % 0.4 % Hugely higher market share.
+567%
Value
Value For Money
75.3 % 94.7 % Better value.
+26%
User Rating
UBM User Rating
55 % 78 % Much more popular.
+42%
Price
Price (score)
$549 $235 Much cheaper.
+57%
Age
Newest
50+ Months More recent.
+14%
58 Months
64-Core
OC Multi Core Mixed Speed
1192 Pts Much faster OC 64-core speed.
+45%
823 Pts
64-Core
Avg. Multi Core Mixed Speed
1017 Pts Much faster 64-core speed.
+45%
701 Pts
Launch Date
Launch Date
Q2'18 Q4'17
Cache
Cache
12 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX2
Max Turbo Frequency
Max Turbo Frequency
5.00 GHz 4.30 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (130W)
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.15 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »
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Intel are celebrating the 40th anniversary of their x86 architecture and 8086 processor with the launch of their high-end i7-8086K. Just 50,000 units of this hex core, twelve threaded Coffee Lake processor have been made available globally. Exactly like the i7-8700K, the 8086K features 12MB of smart (L3) cache, 2 channels of DDR4 RAM and has a TDP of 95W. Essentially, the 8086K is Intel’s current Coffee Lake flagship, the i7-8700K, with a single-core turbo frequency factory overclocked by 300 MHz. Thermals permitting, out of the box, the i7-8086K achieves a single core boost speed of 5.0 GHz – which is a new record for Intel. That said, you would be unlucky if you were unable to achieve a 5.0 GHz single core OC with an 8700K. For everything other than single core, the turbo clock speeds on the 8086K exactly match the 8700K which puts the 8086K firmly into gimmick territory. Directly comparing the 8086K and 8700K shows that for a $100 (24%) price premium you get around a 5% performance improvement which drops to around 2% when both chips are overclocked. If the price gap between the 8086K and the 8700K were to fall to less than 20 USD it may be worth considering the 8086K. [Jun '18 CPUPro]

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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]

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Processor Rankings (Price vs Performance) August 2022 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.

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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.

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CPUGPUSSD
Intel Core i5-12600K $270Nvidia RTX 3060-Ti $446Crucial MX500 250GB $42
Intel Core i5-12400F $160Nvidia RTX 3050 $292Samsung 850 Evo 120GB $106
Intel Core i7-12700K $378Nvidia RTX 3070 $536Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $62SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $453SanDisk Extreme 16GB $17
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