Intel
IntelBX80662I76700K

2 Cores, 2 Threads
@3.0GHz Core (2006)

4 Cores, 8 Threads
@4.0GHz Skylake (2015)

Real World Speed
Performance profile from 213,612 user samples
22,362 User Benchmarks
Best Bench: 26% Base clock 3 GHz, turbo 2.95 GHz (avg)
Worst Bench: 17% Base clock 3 GHz
Poor: 17% Great: 26%
SPEED RANK: 649th / 985
Gaming
Gaming 24%
Surfboard
Desktop
Desktop 31%
Sail boat
Workstation
Workstation 14%
Tree trunk
191,250 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 75% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 75% Great: 105%
SPEED RANK: 27th / 985
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
24.1 % 90.8 % Hugely faster effective speed.
+276%
SC Mixed
Avg. Single Core Mixed Speed
50.5 Pts 128 Pts Hugely faster single-core speed.
+153%
QC Mixed
Avg. Quad Core Mixed Speed
97.5 Pts 444 Pts Hugely faster quad-core speed.
+355%
MC Mixed
Avg. Multi Core Mixed Speed
100 Pts 679 Pts Hugely faster multi-core speed.
+579%
SC Mixed
OC Single Core Mixed Speed
54.6 Pts 144 Pts Hugely faster OC single-core speed.
+164%
QC Mixed
OC Quad Core Mixed Speed
109 Pts 536 Pts Hugely faster OC quad-core speed.
+392%
MC Mixed
OC Multi Core Mixed Speed
109 Pts 770 Pts Hugely faster OC multi-core speed.
+606%
Market Share
Based on 7,461,238 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.39 % 1.94 % Hugely higher market share.
+397%
Value
Value For Money
73.1 % 86.3 % Better value.
+18%
User Rating
UBM User Rating
57 % 94 % Much more popular.
+65%
Price
Price (score)
$15 Hugely cheaper.
+95%
$334
Age
Newest
121 Months 30 Months Much more recent.
+75%
TDP
Thermal Design Power (TDP)
130 Watts 91 Watts Much more energy efficient.
+30%
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
45 nm 14 nm Much newer manufacturing.
+69%
Base Clock
Base Clock Speed
3 GHz 4 GHz Much faster base frequency.
+33%
Turbo Clock
Turbo Clock Speed
3 GHz 4.2 GHz Much faster turbo frequency.
+40%
SC Int
Single Core Integer Speed
73.9 Pts 141 Pts Hugely faster single-core int speed.
+91%
SC Float
Single Core Floating Point Speed
43.3 Pts 147 Pts Hugely faster single-core fp speed.
+239%
QC Int
Quad Core Integer Speed
148 Pts 523 Pts Hugely faster quad-core int speed.
+253%
QC Float
Quad Core Floating Point Speed
86.3 Pts 550 Pts Hugely faster quad-core fp speed.
+537%
MC Int
Multi Core Integer Speed
149 Pts 712 Pts Hugely faster multi-core int speed.
+378%
MC Float
Multi Core Floating Point Speed
86.4 Pts 809 Pts Hugely faster multi-core fp speed.
+836%
Series
CPU Architecture
Core (2006) Skylake (2015)
Socket
Motherboard Socket
LGA775 FCLGA1151
Graphics
Integrated Graphics
None HD 530
Launch Date
Launch Date
Q1'08 Q3'15
Cache
Cache
6 MB L2 8 MB SmartCache
Embedded Options Available
Embedded Options Available
Yes No
Lithography
Lithography
45 nm 14 nm
Recommended Price
Recommended Customer Price
$149.00 - $179.00 $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 Core 2 Duo E8400 is amongst the fastest of the Core 2 Duo range of now nearly ten year old CPUs. The E8400 is included in our group tests simply as a reference point due to its huge success back in its day. Running at a clock speed of 3.0 GHz the E8400 has an effective speed of 52 which is 85% slower than its modern day counterparts. The relative lack of performance is especially noticeable in the area of multi-core processing as a consequence of the E8400's relatively few two cores. Anyone considering an upgrade needn't hesitate as modern CPUs are not only orders of magnitude faster but also considerably more energy efficient and feature packed. [Oct '14 CPUPro]

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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) February 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

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CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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