IntelBX80684I58600K
IntelBX80623I72600K

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

VS
About

4 Cores, 8 Threads @3.4GHz, Sandy Bridge.
Release date: Q1 2011.

Real World Speed
Performance profile from 248,652 user samples
151,379 User Benchmarks
Best Bench: 104% Base clock 3.6 GHz, turbo 5.1 GHz (avg)
Worst Bench: 80% Base clock 3.6 GHz, turbo 4.05 GHz (avg)
Poor: 80% Great: 104%
SPEED RANK: 27th / 1251
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 77%
Battleship
97,273 User Benchmarks
Best Bench: 88% Base clock 3.4 GHz, turbo 5 GHz (avg)
Worst Bench: 63% Base clock 3.7 GHz
Poor: 63% Great: 88%
SPEED RANK: 180th / 1251
Gaming
Gaming 76%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 61%
Destroyer
Effective Speed
Effective CPU Speed
92.5 % Faster effective speed.
+21%
76.2 %
Memory
Avg. Memory Latency
92.1 Pts +1% 91.3 Pts
1-Core
Avg. Single Core Mixed Speed
130 Pts Much faster single-core speed.
+32%
98.8 Pts
2-Core
Avg. Dual Core Mixed Speed
258 Pts Much faster dual-core speed.
+36%
190 Pts
4-Core
Avg. Quad Core Mixed Speed
503 Pts Much faster quad-core speed.
+51%
334 Pts
8-Core
Avg. Octa Core Mixed Speed
713 Pts Much faster octa-core speed.
+47%
486 Pts
Memory
OC Memory Latency
97.3 Pts +1% 96.7 Pts
1-Core
OC Single Core Mixed Speed
153 Pts Faster OC single-core speed.
+29%
119 Pts
2-Core
OC Dual Core Mixed Speed
303 Pts Faster OC dual-core speed.
+29%
234 Pts
4-Core
OC Quad Core Mixed Speed
601 Pts Much faster OC quad-core speed.
+37%
440 Pts
8-Core
OC Octa Core Mixed Speed
867 Pts Much faster OC octa-core speed.
+44%
604 Pts
Market Share
Based on 30,114,979 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.55 % Much higher market share.
+77%
0.31 %
Value
Value For Money
97.3 % Slightly better value.
+7%
91.2 %
User Rating
UBM User Rating
137 % +4% 132 %
Price
Price (score)
$231 $145 Much cheaper.
+37%
Age
Newest
33 Months Much more recent.
+71%
114 Months
TDP
Thermal Design Power (TDP)
95 Watts 95 Watts
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
6 threads 8 threads Much higher thread count.
+33%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
3.6 GHz Slightly faster base frequency.
+6%
3.4 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz Faster turbo frequency.
+13%
3.8 GHz
64-Core
OC Multi Core Mixed Speed
870 Pts Much faster OC 64-core speed.
+44%
604 Pts
64-Core
Avg. Multi Core Mixed Speed
721 Pts Much faster 64-core speed.
+47%
490 Pts
Series
CPU Architecture
Coffee Lake Sandy Bridge
Socket
Motherboard Socket
FCLGA1151 LGA1155
Graphics
Integrated Graphics
UHD 630 HD 3000
Launch Date
Launch Date
Q4'17 Q1'11
Cache
Cache
9 MB 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX
Lithography
Lithography
14 nm 32 nm
Max Turbo Frequency
Max Turbo Frequency
4.30 GHz 3.8 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR3 1066/1333
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 3000
Graphics Base Frequency
Graphics Base Frequency
350 MHz 850 MHz
# of Displays Supported
# of Displays Supported ‡
3 2
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.35 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 2.0

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]

MORE DETAILS

The i7-2600K Sandy Bridge processor is two generations old and nearly three years out of date. The numerous owners of this superb processor should feel in no hurry to upgrade as it's still one of the fastest consumer processors, even by today's standards. The benchmark figures indicate that in terms of real-world performance this processor is only 5% slower than the third generation Ivy Bridge i7-3770K, not bad considering its age. That said new buyers will find both better energy efficiency and marginal performance improvements elsewhere[Feb '12 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 2020 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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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.
  • - 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.
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  • - Share your opinion by voting.

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