IntelBX80684I38100
IntelBX80677I77700K

4 Cores, 4 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 209,555 user samples
16,141 User Benchmarks
Best Bench: 84% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 64% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Poor: 64% Great: 84%
SPEED RANK: 75th / 1129
Gaming
Gaming 78%
Battleship
Desktop
Desktop 76%
Battleship
Workstation
Workstation 47%
Yacht
193,414 User Benchmarks
Best Bench: 110% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 81% Base clock 4.2 GHz, turbo 1.35 GHz (avg)
Poor: 81% Great: 110%
SPEED RANK: 22nd / 1129
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 71%
Battleship
Effective Speed
Effective CPU Speed
77.7 % 96.2 % Faster effective speed.
+24%
SC Mixed
Avg. Single Core Mixed Speed
108 Pts 136 Pts Faster single-core speed.
+26%
QC Mixed
Avg. Quad Core Mixed Speed
401 Pts 469 Pts Faster quad-core speed.
+17%
MC Mixed
Avg. Multi Core Mixed Speed
411 Pts 724 Pts Much faster multi-core speed.
+76%
SC Mixed
OC Single Core Mixed Speed
112 Pts 153 Pts Much faster OC single-core speed.
+37%
QC Mixed
OC Quad Core Mixed Speed
440 Pts 553 Pts Faster OC quad-core speed.
+26%
MC Mixed
OC Multi Core Mixed Speed
444 Pts 811 Pts Hugely faster OC multi-core speed.
+83%
Market Share
Based on 11,481,279 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.59 % 2.04 % Hugely higher market share.
+246%
Value
Value For Money
107 % Better value.
+19%
89.3 %
User Rating
UBM User Rating
88 % 134 % Much more popular.
+52%
Price
Price (score)
$125 Much cheaper.
+65%
$355
Age
Newest
12 Months Much more recent.
+43%
21 Months
TDP
Thermal Design Power (TDP)
65 Watts More energy efficient.
+29%
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
3.6 GHz 4.2 GHz Faster base frequency.
+17%
Turbo Clock
Turbo Clock Speed
3.6 GHz 4.5 GHz Faster turbo frequency.
+25%
SC Int
Single Core Integer Speed
108 Pts 148 Pts Much faster single-core int speed.
+37%
SC Float
Single Core Floating Point Speed
117 Pts 157 Pts Much faster single-core fp speed.
+34%
QC Int
Quad Core Integer Speed
427 Pts 532 Pts Faster quad-core int speed.
+25%
QC Float
Quad Core Floating Point Speed
466 Pts 574 Pts Faster quad-core fp speed.
+23%
MC Int
Multi Core Integer Speed
426 Pts 745 Pts Much faster multi-core int speed.
+75%
MC Float
Multi Core Floating Point Speed
467 Pts 869 Pts Hugely faster multi-core fp speed.
+86%
Series
CPU Architecture
Coffee Lake Kaby Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 630
Launch Date
Launch Date
Q4'17 Q1'17
Cache
Cache
6 MB 8 MB
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 (65W) 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
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.10 GHz 1.15 GHz
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 »
ADVERTISEMENT

Intel’s i3-8100 from their 8th generation of Core processors is a mainstream quad-core CPU. It is the entry model of the latest Coffee Lake line up with a clock speed of 3.6 GHz. Previously, i3 Kaby Lake processors had two cores with hyperthreading, but now, i3 Coffee Lake processors have 4 cores and offer much better value for money in terms of dollars per core. With a performance profile that closely matches last years mid range Kaby Lake i5's (the then go-to mid range gaming choice) and a price tag of just $120, the i3-8100 represents excellent value for money. Unfortunately, like all Coffe Lake processors, the i3-8100 does require a new 300-series motherboard even though it shares the same LGA1151 socket as the previous generation of Kaby Lake 200 motherboards. Intel were clearly mindful of AMD's similarly priced quad core Ryzen 3 1200 which achieves very comparable single, and quad-core benchmarks to the i3-8100.  [Oct '17 CPUPro]

MORE DETAILS

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]

MORE DETAILS

Processor Rankings (Price vs Performance) October 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]

ADVERTISEMENT

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $329Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $105
Intel Core i7-7700K $360AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback