IntelBX80677I57600K
IntelBX80684I38350K

4 Cores, 4 Threads @3.8GHz, Kaby Lake.
Release date: Q1 2017.

4 Cores, 4 Threads @4.0GHz, Coffee Lake.
Release date: Q3 2017.

Real World Speed
Performance profile from 78,843 user samples
72,054 User Benchmarks
Best Bench: 107% Base clock 3.8 GHz, turbo 5.1 GHz (avg)
Worst Bench: 72% Base clock 3.8 GHz, turbo 0.8 GHz (avg)
Poor: 72% Great: 107%
SPEED RANK: 34th / 1137
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 55%
Gunboat
6,789 User Benchmarks
Best Bench: 110% Base clock 4 GHz, turbo 5 GHz (avg)
Worst Bench: 72% Base clock 4 GHz, turbo 4 GHz (avg)
Poor: 72% Great: 110%
SPEED RANK: 33rd / 1137
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 55%
Gunboat
Effective Speed
Effective CPU Speed
90.9 % 91.4 % +1%
SC Mixed
Avg. Single Core Mixed Speed
126 Pts 127 Pts +1%
QC Mixed
Avg. Quad Core Mixed Speed
469 Pts 473 Pts +1%
MC Mixed
Avg. Multi Core Mixed Speed
479 Pts 480 Pts +0%
SC Mixed
OC Single Core Mixed Speed
148 Pts 150 Pts +1%
QC Mixed
OC Quad Core Mixed Speed
561 Pts 576 Pts +3%
MC Mixed
OC Multi Core Mixed Speed
568 Pts 580 Pts +2%
Market Share
Based on 12,238,244 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.82 % Hugely higher market share.
+310%
0.2 %
Value
Value For Money
96.3 % 112 % Better value.
+16%
User Rating
UBM User Rating
100 % Much more popular.
+45%
69 %
Price
Price (score)
$249 $169 Much cheaper.
+32%
Age
Newest
22 Months 14 Months Much more recent.
+36%
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
142 Pts 144 Pts +1%
SC Float
Single Core Floating Point Speed
155 Pts 158 Pts +2%
QC Int
Quad Core Integer Speed
531 Pts 540 Pts +2%
QC Float
Quad Core Floating Point Speed
601 Pts 620 Pts +3%
MC Int
Multi Core Integer Speed
536 Pts 548 Pts +2%
MC Float
Multi Core Floating Point Speed
605 Pts 621 Pts +3%
Graphics
Integrated Graphics
HD 630 UHD 630
Series
CPU Architecture
Kaby Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Series
CPU Architecture
Kaby Lake Coffee Lake
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]

MORE DETAILS

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]

MORE DETAILS

Processor Rankings (Price vs Performance) November 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.
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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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  • - Reports are generated and presented on userbenchmark.com.
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CPUGPUSSD
Intel Core i7-8700K $340Nvidia GTX 1070 $330Samsung 850 Evo 250GB $77
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $100
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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