IntelBX80662I76700
IntelBX80684I38100

4 Cores, 8 Threads @3.4GHz, Skylake.
Release date: Q3 2015.

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

Real World Speed
Performance profile from 363,755 user samples
282,363 User Benchmarks
Best Bench: 80% Base clock 3.4 GHz, turbo 3.7 GHz (avg)
Worst Bench: 60% Base clock 3.4 GHz, turbo 3.7 GHz (avg)
Poor: 60% Great: 80%
SPEED RANK: 356th / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 59%
Gunboat
81,392 User Benchmarks
Best Bench: 80% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 53% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Poor: 53% Great: 80%
SPEED RANK: 388th / 1442
Gaming
Gaming 71%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 53%
Yacht
Effective Speed
Effective CPU Speed
72.3 % +2% 70.6 %
Memory
Avg. Memory Latency
81.2 Pts 81.8 Pts +1%
1-Core
Avg. Single Core Speed
101 Pts 106 Pts +5%
2-Core
Avg. Dual Core Speed
193 Pts 210 Pts Slightly faster dual-core speed.
+9%
4-Core
Avg. Quad Core Speed
343 Pts +0% 342 Pts
8-Core
Avg. Octa Core Speed
517 Pts Much faster octa-core speed.
+44%
359 Pts
Memory
OC Memory Latency
91.1 Pts 93.4 Pts +3%
1-Core
OC Single Core Speed
112 Pts 112 Pts
2-Core
OC Dual Core Speed
219 Pts 224 Pts +2%
4-Core
OC Quad Core Speed
384 Pts 408 Pts Slightly faster OC quad-core speed.
+6%
8-Core
OC Octa Core Speed
587 Pts Much faster OC octa-core speed.
+40%
419 Pts
Market Share
Based on 67,712,926 CPUs tested
Market Share
Market Share (trailing 30 days)
0.92 % Hugely higher market share.
+268%
0.25 %
Value
Value For Money
81.5 % 91.2 % Better value.
+12%
User Rating
UBM User Rating
60 % 67 % More popular.
+12%
Price
Price (score)
$180 $110 Much cheaper.
+39%
Age
Newest
103 Months 78 Months More recent.
+24%
TDP
Thermal Design Power (TDP)
65 Watts 65 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.4 GHz 3.6 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
4 GHz Faster turbo frequency.
+11%
3.6 GHz
64-Core
OC Multi Core Speed
595 Pts Much faster OC 64-core speed.
+42%
420 Pts
64-Core
Avg. Multi Core Speed
534 Pts Much faster 64-core speed.
+47%
364 Pts
Series
CPU Architecture
Skylake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 UHD 630
Launch Date
Launch Date
Q3'15 Q4'17
Cache
Cache
8 MB SmartCache 6 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Embedded Options Available
Embedded Options Available
Yes No
Recommended Price
Recommended Customer Price
$303.00 - $312.00 N/A
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2400
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® UHD Graphics 630
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.10 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
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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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]

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Processor Rankings (Price vs Performance) April 2024 CPU Rankings

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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 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 value for money 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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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

 Frequently Asked Questions

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