IntelBX80684I38100
IntelBX80662I56600K

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

4 Cores, 4 Threads @3.5GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 423,636 user samples
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
342,244 User Benchmarks
Best Bench: 85% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 57% Base clock 3.5 GHz, turbo 3.55 GHz (avg)
Poor: 57% Great: 85%
SPEED RANK: 355th / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed
70.6 % 72.4 % +2%
Memory
Avg. Memory Latency
81.8 Pts 83.3 Pts +2%
1-Core
Avg. Single Core Speed
106 Pts 110 Pts +4%
2-Core
Avg. Dual Core Speed
210 Pts 218 Pts +4%
4-Core
Avg. Quad Core Speed
342 Pts 352 Pts +3%
8-Core
Avg. Octa Core Speed
359 Pts 373 Pts +4%
Memory
OC Memory Latency
93.4 Pts 95.2 Pts +2%
1-Core
OC Single Core Speed
112 Pts 136 Pts Faster OC single-core speed.
+21%
2-Core
OC Dual Core Speed
224 Pts 269 Pts Faster OC dual-core speed.
+20%
4-Core
OC Quad Core Speed
408 Pts 455 Pts Faster OC quad-core speed.
+12%
8-Core
OC Octa Core Speed
419 Pts 476 Pts Faster OC octa-core speed.
+14%
Market Share
Based on 67,749,640 CPUs tested
Market Share
Market Share (trailing 30 days)
0.29 % 0.48 % Much higher market share.
+66%
Value
Value For Money
91.2 % 102 % Better value.
+11%
User Rating
UBM User Rating
67 % 74 % More popular.
+10%
Price
Price (score)
$110 $81 Cheaper.
+26%
Age
Newest
78 Months More recent.
+25%
104 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 4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz +3% 3.5 GHz
Turbo Clock
Turbo Clock Speed
3.6 GHz 3.9 GHz Slightly faster turbo frequency.
+8%
64-Core
OC Multi Core Speed
420 Pts 484 Pts Faster OC 64-core speed.
+15%
64-Core
Avg. Multi Core Speed
364 Pts 378 Pts +4%
Series
CPU Architecture
Coffee Lake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 530
Launch Date
Launch Date
Q4'17 Q3'15
Cache
Cache
6 MB 6 MB SmartCache
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 $242.00 - $243.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015D (130W)
Memory Types
Memory Types
DDR4-2400 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 530
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.10 GHz 1.15 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
No 2.0
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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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 Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]

MORE DETAILS

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

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  • - CPU tests include: integer, floating and string
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  • - 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
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 Frequently Asked Questions

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