IntelBX80662I76700K
IntelBX80646I74770K

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

4 Cores, 8 Threads @3.5GHz, Haswell.
Release date: Q1 2013.

Real World Speed
Performance profile from 288,778 user samples
220,456 User Benchmarks
Best Bench: 103% Base clock 4 GHz, turbo 5 GHz (avg)
Worst Bench: 76% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 76% Great: 103%
SPEED RANK: 45th / 1143
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
68,322 User Benchmarks
Best Bench: 94% Base clock 3.5 GHz, turbo 4.75 GHz (avg)
Worst Bench: 60% Base clock 3.5 GHz, turbo 0.8 GHz (avg)
Poor: 60% Great: 94%
SPEED RANK: 86th / 1143
Gaming
Gaming 77%
Battleship
Desktop
Desktop 79%
Battleship
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
88 % Slightly faster effective speed.
+14%
77.2 %
SC Mixed
Avg. Single Core Mixed Speed
126 Pts Slightly faster single-core speed.
+14%
111 Pts
QC Mixed
Avg. Quad Core Mixed Speed
427 Pts Slightly faster quad-core speed.
+14%
374 Pts
MC Mixed
Avg. Multi Core Mixed Speed
666 Pts Faster multi-core speed.
+16%
576 Pts
SC Mixed
OC Single Core Mixed Speed
142 Pts Slightly faster OC single-core speed.
+9%
130 Pts
QC Mixed
OC Quad Core Mixed Speed
518 Pts Slightly faster OC quad-core speed.
+8%
478 Pts
MC Mixed
OC Multi Core Mixed Speed
765 Pts Slightly faster OC multi-core speed.
+11%
687 Pts
Market Share
Based on 12,803,821 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.87 % Hugely higher market share.
+153%
0.74 %
Value
Value For Money
87.2 % Much better value.
+37%
63.8 %
User Rating
UBM User Rating
86 % More popular.
+26%
68 %
Price
Price (score)
$299 Much cheaper.
+38%
$484
Age
Newest
40 Months Much more recent.
+42%
69 Months
TDP
Thermal Design Power (TDP)
91 Watts 84 Watts Slightly more energy efficient.
+8%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
4 GHz Slightly faster base frequency.
+14%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
+8%
3.9 GHz
SC Int
Single Core Integer Speed
139 Pts Slightly faster single-core int speed.
+7%
130 Pts
SC Float
Single Core Floating Point Speed
147 Pts Slightly faster single-core fp speed.
+12%
131 Pts
QC Int
Quad Core Integer Speed
506 Pts Slightly faster quad-core int speed.
+6%
477 Pts
QC Float
Quad Core Floating Point Speed
544 Pts Slightly faster quad-core fp speed.
+12%
487 Pts
MC Int
Multi Core Integer Speed
698 Pts Slightly faster multi-core int speed.
+7%
652 Pts
MC Float
Multi Core Floating Point Speed
811 Pts Faster multi-core fp speed.
+16%
700 Pts
Series
CPU Architecture
Skylake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 530 HD 4600
Launch Date
Launch Date
Q3'15 Q2'13
Lithography
Lithography
14 nm 22 nm
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2013D
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
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 Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.25 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Graphics and IMC Lithography
Graphics and IMC Lithography
14 nm 22 nm
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 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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The Core i7-4770K is Intel's fourth generation (codename Haswell) flagship processor in the hugely successful Core range. It's not surprising that the 4770K sets a new Real World Performance index record, besting its predecessor by just over 9%. The 4770K also tops out in the remainder of our benchmarks setting new highs of 10020 and 2164 in the PassMark and PassMark Single Thread tests which equates to roughly an 8% overall performance increase over the 3770K. With a TDP of 84 watts, power consumption has increased slightly over the 3770K. The new Core i7-4770K demonstrates around an 8% performance increase over its predecessor the 3770K but it costs 12% more. As a result, at least until prices drop, this processor represents marginally worse value for money than the 3770K. [Jun '13 CPUPro]

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Processor Rankings (Price vs Performance) December 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.
  • 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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