IntelBX80684I38350K
IntelBX80677I77700K

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

4 Cores, 8 Threads
@4.2GHz Kaby Lake (2017)

Real World Speed
Performance profile from 160,074 user samples
3,785 User Benchmarks
Best Bench: 114% Base clock 4 GHz, turbo 5.2 GHz (avg)
Worst Bench: 80% Base clock 4 GHz, turbo 1.25 GHz (avg)
Poor: 80% Great: 114%
SPEED RANK: 22nd / 1110
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 58%
Gunboat
156,289 User Benchmarks
Best Bench: 112% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 87% Base clock 4.2 GHz, turbo 4.5 GHz (avg)
Poor: 87% Great: 112%
SPEED RANK: 18th / 1110
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 100%
UFO
Workstation
Workstation 73%
Battleship
Effective Speed
Effective CPU Speed
95.5 % 99.3 % +4%
SC Mixed
Avg. Single Core Mixed Speed
131 Pts 140 Pts Slightly faster single-core speed.
+7%
QC Mixed
Avg. Quad Core Mixed Speed
496 Pts +2% 486 Pts
MC Mixed
Avg. Multi Core Mixed Speed
505 Pts 737 Pts Much faster multi-core speed.
+46%
SC Mixed
OC Single Core Mixed Speed
152 Pts 154 Pts +1%
QC Mixed
OC Quad Core Mixed Speed
597 Pts Slightly faster OC quad-core speed.
+6%
565 Pts
MC Mixed
OC Multi Core Mixed Speed
598 Pts 812 Pts Much faster OC multi-core speed.
+36%
Market Share
Based on 9,309,841 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.2 % 2.59 % Insanely higher market share.
+1,195%
Value
Value For Money
117 % Better value.
+18%
99.4 %
User Rating
UBM User Rating
60 % 115 % Hugely more popular.
+92%
Price
Price (score)
$168 Much cheaper.
+42%
$291
Age
Newest
9 Months Much more recent.
+47%
17 Months
TDP
Thermal Design Power (TDP)
91 Watts 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4 GHz 4.2 GHz +5%
Turbo Clock
Turbo Clock Speed
4 GHz 4.5 GHz Slightly faster turbo frequency.
+12%
SC Int
Single Core Integer Speed
148 Pts 151 Pts +2%
SC Float
Single Core Floating Point Speed
158 Pts +1% 157 Pts
QC Int
Quad Core Integer Speed
577 Pts +4% 554 Pts
QC Float
Quad Core Floating Point Speed
622 Pts Slightly faster quad-core fp speed.
+6%
586 Pts
MC Int
Multi Core Integer Speed
577 Pts 751 Pts Much faster multi-core int speed.
+30%
MC Float
Multi Core Floating Point Speed
623 Pts 858 Pts Much faster multi-core fp speed.
+38%
Series
CPU Architecture
Coffee Lake (2017) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 630
Launch Date
Launch Date
Q4'17 Q1'17
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D (130W)
Memory Types
Memory Types
DDR4-2400 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Turbo Boost Tech
Intel® Turbo Boost Technology
No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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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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The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 CPUPro]

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Processor Rankings (Price vs Performance) June 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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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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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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 Frequently Asked Questions

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CPUGPUSSD
AMD Ryzen 5 1600 $175Nvidia GTX 1070 $447Samsung 850 Evo 250GB $104
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $110
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $116
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $58HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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