IntelBX80662I56600K
IntelBX80662I56600

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

4 Cores, 4 Threads @3.3GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 422,932 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: 355th / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
80,688 User Benchmarks
Best Bench: 77% Base clock 3.3 GHz, turbo 3.65 GHz (avg)
Worst Bench: 47% Base clock 3.3 GHz, turbo 3.6 GHz (avg)
Poor: 47% Great: 77%
SPEED RANK: 452nd / 1442
Gaming
Gaming 68%
Battle cruiser
Desktop
Desktop 74%
Battleship
Workstation
Workstation 51%
Yacht
Effective Speed
Effective CPU Speed
72.4 % Slightly faster effective speed.
+7%
67.6 %
Memory
Avg. Memory Latency
83.3 Pts Slightly lower memory latency.
+6%
78.7 Pts
1-Core
Avg. Single Core Speed
110 Pts Slightly faster single-core speed.
+10%
100 Pts
2-Core
Avg. Dual Core Speed
218 Pts Slightly faster dual-core speed.
+8%
201 Pts
4-Core
Avg. Quad Core Speed
352 Pts Slightly faster quad-core speed.
+9%
324 Pts
8-Core
Avg. Octa Core Speed
373 Pts Slightly faster octa-core speed.
+8%
345 Pts
Memory
OC Memory Latency
95.2 Pts +5% 90.9 Pts
1-Core
OC Single Core Speed
136 Pts Faster OC single-core speed.
+21%
112 Pts
2-Core
OC Dual Core Speed
269 Pts Faster OC dual-core speed.
+21%
222 Pts
4-Core
OC Quad Core Speed
455 Pts Faster OC quad-core speed.
+14%
399 Pts
8-Core
OC Octa Core Speed
476 Pts Faster OC octa-core speed.
+16%
412 Pts
Market Share
Based on 67,717,057 CPUs tested
Market Share
Market Share (trailing 30 days)
0.48 % Hugely higher market share.
+243%
0.14 %
Value
Value For Money
102 % Better value.
+22%
82.9 %
User Rating
UBM User Rating
74 % More popular.
+17%
63 %
Price
Price (score)
$81 Much cheaper.
+39%
$132
Age
Newest
104 Months 103 Months +1%
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 Slightly faster base frequency.
+6%
3.3 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz 3.9 GHz
64-Core
OC Multi Core Speed
484 Pts Faster OC 64-core speed.
+17%
414 Pts
64-Core
Avg. Multi Core Speed
378 Pts Slightly faster 64-core speed.
+8%
350 Pts
Series
CPU Architecture
Skylake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 530
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $213.00 - $224.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes

More specs » More specs »
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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

  • - 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

 Best User Rated

The Best.
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HDDRAMUSB
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WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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