IntelBX80662I56600K
IntelBX80646I34330

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

2 Cores, 4 Threads @3.5GHz, Haswell.
Release date: Q3 2013.

Real World Speed
Performance profile from 350,666 user samples
344,946 User Benchmarks
Best Bench: 92% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 61% Base clock 3.5 GHz, turbo 3.55 GHz (avg)
Poor: 61% Great: 92%
SPEED RANK: 165th / 1316
Gaming
Gaming 79%
Battleship
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 60%
Destroyer
5,720 User Benchmarks
Best Bench: 70% Base clock 3.5 GHz, turbo 3.5 GHz (avg)
Worst Bench: 51% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 51% Great: 70%
SPEED RANK: 452nd / 1316
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 71%
Battleship
Workstation
Workstation 46%
Yacht
Effective Speed
Effective CPU Speed
78.9 % Faster effective speed.
+25%
63.1 %
Memory
Avg. Memory Latency
85.6 Pts +2% 84 Pts
1-Core
Avg. Single Core Mixed Speed
114 Pts Faster single-core speed.
+21%
94 Pts
2-Core
Avg. Dual Core Mixed Speed
226 Pts Much faster dual-core speed.
+37%
165 Pts
4-Core
Avg. Quad Core Mixed Speed
417 Pts Much faster quad-core speed.
+70%
246 Pts
8-Core
Avg. Octa Core Mixed Speed
424 Pts Much faster octa-core speed.
+68%
252 Pts
Memory
OC Memory Latency
95.7 Pts +1% 94.3 Pts
1-Core
OC Single Core Mixed Speed
137 Pts Much faster OC single-core speed.
+33%
103 Pts
2-Core
OC Dual Core Mixed Speed
271 Pts Much faster OC dual-core speed.
+38%
196 Pts
4-Core
OC Quad Core Mixed Speed
527 Pts Hugely faster OC quad-core speed.
+93%
273 Pts
8-Core
OC Octa Core Mixed Speed
524 Pts Hugely faster OC octa-core speed.
+92%
273 Pts
Market Share
Based on 46,369,233 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.44 % Insanely higher market share.
+2,100%
0.02 %
Value
Value For Money
85.2 % Much better value.
+31%
65 %
User Rating
UBM User Rating
73 % Much more popular.
+40%
52 %
Price
Price (score)
$210 Cheaper.
+16%
$250
Age
Newest
73 Months More recent.
+26%
98 Months
TDP
Thermal Design Power (TDP)
91 Watts 54 Watts Much more energy efficient.
+41%
Cores
CPU Processing Cores
4 cores Hugely higher core count.
+100%
2 cores
Threads
CPU Processing Threads
4 threads 4 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.5 GHz 3.5 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz Faster turbo frequency.
+11%
3.5 GHz
64-Core
OC Multi Core Mixed Speed
528 Pts Hugely faster OC 64-core speed.
+91%
276 Pts
64-Core
Avg. Multi Core Mixed Speed
425 Pts Much faster 64-core speed.
+68%
253 Pts
Series
CPU Architecture
Skylake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 530 HD 4600
Launch Date
Launch Date
Q3'15 Q3'13
Cache
Cache
6 MB SmartCache 4 MB SmartCache
Embedded Options Available
Embedded Options Available
No Yes
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $138.00 - $147.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2013C
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 25.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 4600
Graphics Output
Graphics Output
eDP/DP/HDMI/DVI eDP/DP/HDMI/DVI/VGA
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Graphics and IMC Lithography
Graphics and IMC Lithography
14 nm 22 nm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No
PCI Express Revision
PCI Express Revision
3.0 Up to 3.0

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]

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The Intel Core i3-4330 is a budget dual-core four threaded 4th generation Haswell processor released in Q3 2013. The i3-4330 has gained popularity by offering a good balance between low power, good performance and value for money. It scores a strong effective speed of 89% with its base clock of 3.5 GHz which means that users will experience smooth and fast performance with the majority of desktop applications. Additionally its two cores and four virtual cores are adequate for most games. The i3-4330 features Intel HD Graphics 4600 which are comparable to AMD integrated graphics when it comes to 3D gaming. But serious gamers will need to keep enough money aside for a dedicated GPU. An 8% premium on the list price would buy you the i3-4340 which has a 100 MHz advantage on its base clock speed (full comparison here). [Nov '14 CPUPro]

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Processor Rankings (Price vs Performance) September 2021 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.
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.

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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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