IntelBX80684I58600K
IntelBX80673I99980X

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

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About

18 Cores, 36 Threads @3.00 GHz, Skylake.
Release date ≈ Q4 2018.

Real World Speed
Performance profile from 115,791 user samples
115,315 User Benchmarks
Best Bench: 102% Base clock 3.6 GHz, turbo 5.1 GHz (avg)
Worst Bench: 75% Base clock 3.6 GHz, turbo 4.05 GHz (avg)
Poor: 75% Great: 102%
SPEED RANK: 28th / 1182
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 65%
Destroyer
476 User Benchmarks
Best Bench: 101% Base clock 3 GHz, turbo 4.9 GHz (avg)
Worst Bench: 80% Base clock 3 GHz, turbo 0.25 GHz (avg)
Poor: 80% Great: 101%
SPEED RANK: 20th / 1182
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 134%
UFO
Effective Speed
Effective CPU Speed
87.4 % 89.5 % +2%
1-Core
Avg. Single Core Mixed Speed
133 Pts +3% 129 Pts
2-Core
Avg. Dual Core Mixed Speed
263 Pts +3% 256 Pts
4-Core
Avg. Quad Core Mixed Speed
513 Pts +4% 491 Pts
8-Core
Avg. Octa Core Mixed Speed
731 Pts 980 Pts Much faster octa-core speed.
+34%
64-Core
Avg. Multi Core Mixed Speed
738 Pts 2852 Pts Hugely faster 64-core speed.
+286%
1-Core
OC Single Core Mixed Speed
154 Pts Slightly faster OC single-core speed.
+6%
145 Pts
2-Core
OC Dual Core Mixed Speed
306 Pts Slightly faster OC dual-core speed.
+6%
289 Pts
4-Core
OC Quad Core Mixed Speed
604 Pts Slightly faster OC quad-core speed.
+7%
565 Pts
8-Core
OC Octa Core Mixed Speed
873 Pts 1135 Pts Much faster OC octa-core speed.
+30%
64-Core
OC Multi Core Mixed Speed
879 Pts 3337 Pts Hugely faster OC 64-core speed.
+280%
Market Share
Based on 19,361,331 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.71 % Insanely higher market share.
+3,450%
0.02 %
Value
Value For Money
90 % Much better value.
+70%
52.8 %
User Rating
UBM User Rating
75 % More popular.
+25%
60 %
Price
Price (score)
$250 Hugely cheaper.
+87%
$1,890
Age
Newest
22 Months 8+ Months Much more recent.
+64%
Launch Date
Launch Date
Q4'17 Q4'18
Cache
Cache
9 MB 24.75 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2017X
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Channels
Max # of Memory Channels
2 4
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 44

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]

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just a re-brand of 7980XE [Jan '19 randomlogin]

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Processor Rankings (Price vs Performance) August 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. 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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