IntelBX80677I77700K
IntelBX80646I74770K

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

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

Real World Speed
Performance profile from 257,394 user samples
193,414 User Benchmarks
Best Bench: 110% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 81% Base clock 4.2 GHz, turbo 1.35 GHz (avg)
Poor: 81% Great: 110%
SPEED RANK: 22nd / 1129
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 71%
Battleship
63,980 User Benchmarks
Best Bench: 91% Base clock 4.7 GHz, turbo 6.3 GHz (avg)
Worst Bench: 62% Base clock 3.5 GHz, turbo 0.5 GHz (avg)
Poor: 62% Great: 91%
SPEED RANK: 76th / 1129
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
96.2 % Faster effective speed.
+25%
77.2 %
SC Mixed
Avg. Single Core Mixed Speed
136 Pts Faster single-core speed.
+24%
110 Pts
QC Mixed
Avg. Quad Core Mixed Speed
469 Pts Faster quad-core speed.
+25%
376 Pts
MC Mixed
Avg. Multi Core Mixed Speed
724 Pts Faster multi-core speed.
+26%
575 Pts
SC Mixed
OC Single Core Mixed Speed
153 Pts Faster OC single-core speed.
+20%
128 Pts
QC Mixed
OC Quad Core Mixed Speed
553 Pts Faster OC quad-core speed.
+21%
456 Pts
MC Mixed
OC Multi Core Mixed Speed
811 Pts Faster OC multi-core speed.
+19%
679 Pts
Market Share
Based on 11,527,860 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.34 % Hugely higher market share.
+234%
0.7 %
Value
Value For Money
89.3 % Much better value.
+33%
67.3 %
User Rating
UBM User Rating
133 % Hugely more popular.
+93%
69 %
Price
Price (score)
$355 Cheaper.
+15%
$420
Age
Newest
21 Months Much more recent.
+69%
67 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
4.2 GHz Faster base frequency.
+20%
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+15%
3.9 GHz
SC Int
Single Core Integer Speed
148 Pts Slightly faster single-core int speed.
+14%
130 Pts
SC Float
Single Core Floating Point Speed
157 Pts Faster single-core fp speed.
+21%
130 Pts
QC Int
Quad Core Integer Speed
532 Pts Faster quad-core int speed.
+15%
461 Pts
QC Float
Quad Core Floating Point Speed
574 Pts Faster quad-core fp speed.
+24%
462 Pts
MC Int
Multi Core Integer Speed
745 Pts Faster multi-core int speed.
+15%
647 Pts
MC Float
Multi Core Floating Point Speed
869 Pts Faster multi-core fp speed.
+25%
694 Pts
Series
CPU Architecture
Kaby Lake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 630 HD 4600
Launch Date
Launch Date
Q1'17 Q2'13
Cache
Cache
8 MB 8 MB SmartCache
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
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 350 MHz
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
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 i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 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]

MORE DETAILS

Processor Rankings (Price vs Performance) October 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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CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $358Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $120
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
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