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IntelBX80662I56600K
IntelBX80684I39100F

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

4 Cores, 4 Threads @3.6GHz, Coffee Lake.
Release date: Q2 2019.

Real World Speed
Performance profile from 376,554 user samples
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: 375th / 1468
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
34,310 User Benchmarks
Best Bench: 86% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 72% Base clock 3.6 GHz, turbo 4 GHz (avg)
Poor: 72% Great: 86%
SPEED RANK: 256th / 1468
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 61%
Destroyer
Effective Speed
Effective CPU Speed
72.4 % 80.1 % Faster effective speed.
+11%
Memory
Avg. Memory Latency
83.3 Pts 88 Pts Slightly lower memory latency.
+6%
1-Core
Avg. Single Core Speed
110 Pts 122 Pts Faster single-core speed.
+11%
2-Core
Avg. Dual Core Speed
218 Pts 240 Pts Faster dual-core speed.
+10%
4-Core
Avg. Quad Core Speed
352 Pts 416 Pts Faster quad-core speed.
+18%
8-Core
Avg. Octa Core Speed
373 Pts 423 Pts Faster octa-core speed.
+13%
Memory
OC Memory Latency
95.2 Pts +1% 94.6 Pts
1-Core
OC Single Core Speed
136 Pts Slightly faster OC single-core speed.
+8%
126 Pts
2-Core
OC Dual Core Speed
269 Pts Slightly faster OC dual-core speed.
+8%
250 Pts
4-Core
OC Quad Core Speed
455 Pts 476 Pts +5%
8-Core
OC Octa Core Speed
476 Pts +0% 475 Pts
Market Share
Based on 69,053,054 CPUs tested
Market Share
Market Share (trailing 30 days)
0.43 % Much higher market share.
+39%
0.31 %
Value
Value For Money
98.7 % 111 % Better value.
+12%
User Rating
UBM User Rating
74 % 84 % More popular.
+14%
Price
Price (score)
$90 $85 Slightly cheaper.
+6%
Age
Newest
111 Months 67 Months Much more recent.
+40%
TDP
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
+29%
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
3.5 GHz 3.6 GHz +3%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.2 GHz Slightly faster turbo frequency.
+8%
64-Core
OC Multi Core Speed
484 Pts +2% 474 Pts
64-Core
Avg. Multi Core Speed
378 Pts 427 Pts Faster 64-core speed.
+13%
Series
CPU Architecture
Skylake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 None
Launch Date
Launch Date
Q3'15 Q2'19
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency
3.9 GHz 4.20 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2400
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 37.5 GB/s
ECC Memory Supported
ECC Memory Supported ‡
No Yes
TSX-NI
Intel® TSX-NI
Yes No

More specs » More specs »

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

Intel’s Core i3-9100F is a quad-core 9th generation Coffee Lake desktop processor. It features base / boost clocks of 3.6 / 4.2 GHz, 6 MB of cache, a 65W TDP and it ships with a cooler. Gamers should pair the 9100F with a Z390 motherboard and unlock higher XMP RAM speeds. This will deliver up to a 15% fps boost which is well worth it considering that many Z390 boards are available for around $100 USD (here is one of the builds from our EFps test lab). The 9100F has great single core performance coupled with a strong memory sub system. This enables it to deliver excellent all round performance, easily holding its own against far pricier CPUs for the majority of use cases. The heavily hyped 12 threaded 6 core Ryzen 3600, paired with a 2060S, barely pulls ahead in any of the top five games. [Oct '19 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) November 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]

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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