IntelBX80684I58600K
IntelBX80684I38100

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

4 Cores, 4 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

Real World Speed
Performance profile from 359,385 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: 48th / 1316
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 77%
Battleship
106,854 User Benchmarks
Best Bench: 83% Base clock 3.5 GHz, turbo 3.5 GHz (avg)
Worst Bench: 62% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 62% Great: 83%
SPEED RANK: 204th / 1316
Gaming
Gaming 76%
Battleship
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed
92.6 % Faster effective speed.
+22%
76.2 %
Memory
Avg. Memory Latency
91.5 Pts Slightly lower memory latency.
+7%
85.2 Pts
1-Core
Avg. Single Core Mixed Speed
131 Pts Faster single-core speed.
+25%
105 Pts
2-Core
Avg. Dual Core Mixed Speed
259 Pts Faster dual-core speed.
+25%
208 Pts
4-Core
Avg. Quad Core Mixed Speed
508 Pts Much faster quad-core speed.
+31%
389 Pts
8-Core
Avg. Octa Core Mixed Speed
722 Pts Hugely faster octa-core speed.
+83%
394 Pts
Memory
OC Memory Latency
96.8 Pts +4% 93.4 Pts
1-Core
OC Single Core Mixed Speed
153 Pts Much faster OC single-core speed.
+37%
112 Pts
2-Core
OC Dual Core Mixed Speed
303 Pts Much faster OC dual-core speed.
+36%
223 Pts
4-Core
OC Quad Core Mixed Speed
595 Pts Much faster OC quad-core speed.
+37%
434 Pts
8-Core
OC Octa Core Mixed Speed
871 Pts Hugely faster OC octa-core speed.
+101%
434 Pts
Market Share
Based on 46,357,701 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.38 % Much higher market share.
+65%
0.23 %
Value
Value For Money
97 % Better value.
+19%
81.4 %
User Rating
UBM User Rating
77 % More popular.
+15%
67 %
Price
Price (score)
$235 $220 Slightly cheaper.
+7%
Age
Newest
47 Months 47 Months
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
6 threads Much higher thread count.
+50%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.6 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz Faster turbo frequency.
+19%
3.6 GHz
64-Core
OC Multi Core Mixed Speed
870 Pts Hugely faster OC 64-core speed.
+99%
437 Pts
64-Core
Avg. Multi Core Mixed Speed
729 Pts Hugely faster 64-core speed.
+84%
397 Pts
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Cache
Cache
9 MB 6 MB
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015C (65W)
Memory Types
Memory Types
DDR4-2666 DDR4-2400
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.10 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 No
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

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 i3-8100 from their 8th generation of Core processors is a mainstream quad-core CPU. It is the entry model of the latest Coffee Lake line up with a clock speed of 3.6 GHz. Previously, i3 Kaby Lake processors had two cores with hyperthreading, but now, i3 Coffee Lake processors have 4 cores and offer much better value for money in terms of dollars per core. With a performance profile that closely matches last years mid range Kaby Lake i5's (the then go-to mid range gaming choice) and a price tag of just $120, the i3-8100 represents excellent value for money. Unfortunately, like all Coffe Lake processors, the i3-8100 does require a new 300-series motherboard even though it shares the same LGA1151 socket as the previous generation of Kaby Lake 200 motherboards. Intel were clearly mindful of AMD's similarly priced quad core Ryzen 3 1200 which achieves very comparable single, and quad-core benchmarks to the i3-8100.  [Oct '17 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.
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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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  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
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