IntelBX80677I57600K
IntelBX80684I38350K

4 Cores, 4 Threads
@3.8GHz Kaby Lake (2017)

4 Cores, 4 Threads
@4.0GHz Coffee Lake (2017)

Real World Speed
Performance profile from 62,982 user samples
58,950 User Benchmarks
Best Bench: 109% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 75% Base clock 3.8 GHz, turbo 1.6 GHz (avg)
Poor: 75% Great: 109%
SPEED RANK: 27th / 1117
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 56%
Gunboat
4,032 User Benchmarks
Best Bench: 111% Base clock 4 GHz, turbo 5.2 GHz (avg)
Worst Bench: 77% Base clock 4 GHz, turbo 4 GHz (avg)
Poor: 77% Great: 111%
SPEED RANK: 24th / 1117
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
92.9 % 94 % +1%
SC Mixed
Avg. Single Core Mixed Speed
127 Pts 129 Pts +2%
QC Mixed
Avg. Quad Core Mixed Speed
483 Pts 489 Pts +1%
MC Mixed
Avg. Multi Core Mixed Speed
492 Pts 496 Pts +1%
SC Mixed
OC Single Core Mixed Speed
149 Pts 150 Pts +1%
QC Mixed
OC Quad Core Mixed Speed
575 Pts 582 Pts +1%
MC Mixed
OC Multi Core Mixed Speed
574 Pts 585 Pts +2%
Market Share
Based on 9,795,562 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.78 % Hugely higher market share.
+500%
0.13 %
Value
Value For Money
102 % 116 % Slightly better value.
+14%
User Rating
UBM User Rating
88 % Much more popular.
+40%
63 %
Price
Price (score)
$229 $165 Cheaper.
+28%
Age
Newest
18 Months 10 Months Much more recent.
+44%
TDP
Thermal Design Power (TDP)
91 Watts 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.8 GHz 4 GHz Slightly faster base frequency.
+5%
Turbo Clock
Turbo Clock Speed
4.2 GHz +5% 4 GHz
SC Int
Single Core Integer Speed
143 Pts 144 Pts +1%
SC Float
Single Core Floating Point Speed
155 Pts 156 Pts +1%
QC Int
Quad Core Integer Speed
551 Pts 561 Pts +2%
QC Float
Quad Core Floating Point Speed
609 Pts 613 Pts +1%
MC Int
Multi Core Integer Speed
551 Pts 562 Pts +2%
MC Float
Multi Core Floating Point Speed
609 Pts 616 Pts +1%
Graphics
Integrated Graphics
HD 630 UHD 630
Series
CPU Architecture
Kaby Lake (2017) Coffee Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Series
CPU Architecture
Kaby Lake (2017) Coffee Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 630 UHD 630
Launch Date
Launch Date
Q1'17 Q4'17
Cache
Cache
6 MB 8 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price
$242.00 - $243.00 N/A
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015C (130W)
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR4-2400
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 350 MHz
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 No
TSX-NI
Intel® TSX-NI
Yes No
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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The i5-7600K targets high end gamers, it sits just behind the flagship i7-7700K in Intel’s Kaby Lake lineup. The 7600K will likely be the most popular gaming CPU of 2017 (some competition from AMD’s upcoming Zen/Ryzen CPUs, would be very welcome). Comparing the 7600K and 6600K shows that the two processors are very closely matched and comparing the 7600K vs the hyper-threaded 7700K highlights the relative strength of the 7700K for workstation performance. There are no significant architectural differences between Kaby Lake and Skylake so, when fully overclocked, the two generations should perform similarly but Kaby Lake offers faster base clocks, improved speed shift technology which helps CPU responsiveness, and better integrated graphics[Jan '17 CPUPro]

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The quad core i3-8350K hails from Intel’s most recent (and as yet unreleased) generation of Coffee Lake processors. It has a stock clock of 4.0 GHz, 8MB of cache and a TDP of 95W. The 8350K is the first i3 processor to feature four cores (previous generations of i3s had two cores and four threads). With this eighth generation of processors, Intel has introduced a step change in their nomenclature which witnesses the old quad core i5s become the new quad core i3s. Our benchmarks show a 25% increase in effective speed between generations of i3 8350K vs 7350K and near equivalence between the outgoing i5-7600K and the new i3-8350K. Although the price points of Coffee Lake are not yet known, if Intel keep them roughly in line with the previous generations (i3 ~= $140) this will represent the best improvement in value for money since Sandy Bridge as the 8350K at $140 would be 34.8% cheaper than a 7600K at $215. Cynics among us will see this as an effort to fend off competition from AMD’s new multi-core Ryzen processors. It appears Intel may have been successful with this move as early benchmarks from the 8350K suggest that it beats the more expensive 8 core Ryzen 7 1700 in single and quad core performance by 25%. The 8350K is a great choice for gaming builds, but the budget will also need to factor in a complementary motherboard based on the new 300 series chipset. Expect the quad core i3-8100 which is the 8350K’s little sister featuring a base clock of 3.6 GHz, to follow shortly. [Aug '17 CPUPro]

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Processor Rankings (Price vs Performance) July 2018 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.

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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.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

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CPUGPUSSD
Intel Core i7-8700K $310Nvidia GTX 1070 $408Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i5-8600K $235AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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