IntelBX80646I34130
IntelBX80684I58600K

2 Cores, 4 Threads @3.4GHz, Haswell.
Release date: Q3 2013.

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

Real World Speed
Performance profile from 138,607 user samples
21,980 User Benchmarks
Best Bench: 55% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Worst Bench: 36% Base clock 3.4 GHz, turbo 1.1 GHz (avg)
Poor: 36% Great: 55%
SPEED RANK: 324th / 1173
Gaming
Gaming 50%
Yacht
Desktop
Desktop 54%
Yacht
Workstation
Workstation 24%
Surfboard
116,627 User Benchmarks
Best Bench: 107% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 76% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Poor: 76% Great: 107%
SPEED RANK: 16th / 1173
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed
49.7 % 90.5 % Hugely faster effective speed.
+82%
SC Mixed
Avg. Single Core Mixed Speed
91.2 Pts 133 Pts Much faster single-core speed.
+46%
QC Mixed
Avg. Quad Core Mixed Speed
237 Pts 516 Pts Hugely faster quad-core speed.
+118%
MC Mixed
Avg. Multi Core Mixed Speed
245 Pts 739 Pts Hugely faster multi-core speed.
+202%
SC Mixed
OC Single Core Mixed Speed
101 Pts 156 Pts Much faster OC single-core speed.
+54%
QC Mixed
OC Quad Core Mixed Speed
265 Pts 612 Pts Hugely faster OC quad-core speed.
+131%
MC Mixed
OC Multi Core Mixed Speed
267 Pts 886 Pts Hugely faster OC multi-core speed.
+232%
Market Share
Based on 18,647,681 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.14 % 0.8 % Hugely higher market share.
+471%
Value
Value For Money
63.8 % 94.5 % Much better value.
+48%
User Rating
UBM User Rating
56 % 132 % Hugely more popular.
+136%
Price
Price (score)
$150 Much cheaper.
+42%
$260
Age
Newest
70 Months 21 Months Much more recent.
+70%
TDP
Thermal Design Power (TDP)
54 Watts Much more energy efficient.
+43%
95 Watts
Cores
CPU Processing Cores
2 cores 6 cores Hugely higher core count.
+200%
Threads
CPU Processing Threads
4 threads 6 threads Much higher thread count.
+50%
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.4 GHz 3.6 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
3.4 GHz 4.3 GHz Faster turbo frequency.
+26%
SC Int
Single Core Integer Speed
100 Pts 150 Pts Much faster single-core int speed.
+50%
SC Float
Single Core Floating Point Speed
102 Pts 162 Pts Much faster single-core fp speed.
+59%
QC Int
Quad Core Integer Speed
252 Pts 583 Pts Hugely faster quad-core int speed.
+131%
QC Float
Quad Core Floating Point Speed
270 Pts 648 Pts Hugely faster quad-core fp speed.
+140%
MC Int
Multi Core Integer Speed
253 Pts 836 Pts Hugely faster multi-core int speed.
+230%
MC Float
Multi Core Floating Point Speed
270 Pts 954 Pts Hugely faster multi-core fp speed.
+253%
Series
CPU Architecture
Haswell Coffee Lake
Socket
Motherboard Socket
FCLGA1150 FCLGA1151
Graphics
Integrated Graphics
HD 4400 UHD 630
Launch Date
Launch Date
Q3'13 Q4'17
Cache
Cache
3 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$117.00 N/A
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013C PCG 2015C (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4-2666
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Processor Graphics
Processor Graphics ‡
Intel® HD graphics 4400 Intel® UHD Graphics 630
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
Turbo Boost Tech
Intel® Turbo Boost Technology
No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
Up to 3.0 3.0
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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From the point of view of a consumer that typically uses a PC for surfing the web, checking email, listening to music and watching videos, I consider that the Haswell i3 processors currently represent the best value for money. The i3-4130 has a performance profile that is just 7% below the top nine group leader average yet it only costs half as much. Power users that play intensive 3d games or run video editing, graphics design or CAD packages will benefit from more than two cores and will do well to look elsewhere but for regular users overall responsiveness will remain largely unchanged regardless of how much more is spent on the CPU. (My new value pick is the G3420 which supersedes my recommendation of the i3-4130.) [Sep '13 CPUPro]

MORE DETAILS

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

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

We calculate effective speed which measures real world performance for typical consumers. 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.
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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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