IntelBX80557E6550
IntelBX80662I76700K

2 Cores, 2 Threads @2.33GHz, Core.
Release date: Q3 2007.

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 600,327 user samples
11,349 User Benchmarks
Best Bench: 43% Base clock 2.35 GHz
Worst Bench: 26% Base clock 2.35 GHz, turbo 2.3 GHz (avg)
Poor: 26% Great: 43%
SPEED RANK: 1134th / 1442
Gaming
Gaming 37%
Jet ski
Desktop
Desktop 41%
Speed boat
Workstation
Workstation 24%
Surfboard
588,978 User Benchmarks
Best Bench: 90% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 90%
SPEED RANK: 224th / 1442
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
37.4 % 80.8 % Hugely faster effective speed.
+116%
Memory
Avg. Memory Latency
66.3 Pts 88.6 Pts Much lower memory latency.
+34%
1-Core
Avg. Single Core Speed
27.5 Pts 119 Pts Hugely faster single-core speed.
+333%
2-Core
Avg. Dual Core Speed
51.7 Pts 224 Pts Hugely faster dual-core speed.
+333%
4-Core
Avg. Quad Core Speed
52.7 Pts 395 Pts Hugely faster quad-core speed.
+650%
8-Core
Avg. Octa Core Speed
53.1 Pts 597 Pts Insanely faster octa-core speed.
+1,024%
Memory
OC Memory Latency
75.9 Pts 95.9 Pts Lower OC memory latency.
+26%
1-Core
OC Single Core Speed
30.2 Pts 137 Pts Hugely faster OC single-core speed.
+354%
2-Core
OC Dual Core Speed
60.2 Pts 258 Pts Hugely faster OC dual-core speed.
+329%
4-Core
OC Quad Core Speed
60.1 Pts 459 Pts Hugely faster OC quad-core speed.
+664%
8-Core
OC Octa Core Speed
60.3 Pts 696 Pts Insanely faster OC octa-core speed.
+1,054%
Market Share
Based on 67,720,530 CPUs tested
Market Share
Market Share (trailing 30 days)
0 % 1.07 % Insanely higher market share.
+∞%
Value
Value For Money
83.1 % 91.1 % Slightly better value.
+10%
User Rating
UBM User Rating
51 % 78 % Much more popular.
+53%
Price
Price (score)
$15 Hugely cheaper.
+92%
$180
Age
Newest
199 Months 104 Months Much more recent.
+48%
TDP
Thermal Design Power (TDP)
65 Watts More energy efficient.
+29%
91 Watts
Cores
CPU Processing Cores
2 cores 4 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
2 threads 8 threads Hugely higher thread count.
+300%
Lithography
Manufacturing process
65 nm 14 nm Much newer manufacturing.
+78%
Base Clock
Base Clock Speed
2.33 GHz 4 GHz Much faster base frequency.
+72%
Turbo Clock
Turbo Clock Speed
2.33 GHz 4.2 GHz Hugely faster turbo frequency.
+80%
64-Core
OC Multi Core Speed
60.3 Pts 716 Pts Insanely faster OC 64-core speed.
+1,087%
64-Core
Avg. Multi Core Speed
53.4 Pts 612 Pts Insanely faster 64-core speed.
+1,046%
Series
CPU Architecture
Core Skylake
Socket
Motherboard Socket
LGA775 FCLGA1151
Graphics
Integrated Graphics
None HD 530
Launch Date
Launch Date
Q3'07 Q3'15
Cache
Cache
4 MB L2 8 MB SmartCache
Lithography
Lithography
65 nm 14 nm
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Bus Speed
Bus Speed
1333 MHz FSB 8 GT/s DMI3
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
AES New Instructions
Intel® AES New Instructions
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

More specs » More specs »
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The Intel Core2 Duo E6550 is nearly six years old, the equivalent of around 3 processor lifetimes. This great grand daddy of a processor has been included in the group test as a reference. Intel's Core2 Duo range were hugely successful processors and shipped in over 20 different flavours. In terms of real world performance, with a Passmark-S score of 712 points, the E6550 is less than half as fast as the top of the range i7-3770K Ivy Bridge processor. In recent years emphasis has shifted towards server orientated workloads and on that front the i7-3770K offers over six times more processing throughput. [Feb '12 CPUPro]

MORE DETAILS

The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

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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