IntelBX80677I77700K
IntelBX80646I34160

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

2 Cores, 4 Threads @3.6GHz, Haswell.
Release date: Q3 2014.

Real World Speed
Performance profile from 322,068 user samples
298,143 User Benchmarks
Best Bench: 110% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 80% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 80% Great: 110%
SPEED RANK: 41st / 1173
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 71%
Battleship
23,925 User Benchmarks
Best Bench: 61% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 36% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Poor: 36% Great: 61%
SPEED RANK: 326th / 1173
Gaming
Gaming 54%
Yacht
Desktop
Desktop 61%
Destroyer
Workstation
Workstation 32%
Sail boat
Effective Speed
Effective CPU Speed
95.9 % Much faster effective speed.
+79%
53.7 %
SC Mixed
Avg. Single Core Mixed Speed
136 Pts Much faster single-core speed.
+44%
94.2 Pts
QC Mixed
Avg. Quad Core Mixed Speed
468 Pts Hugely faster quad-core speed.
+90%
246 Pts
MC Mixed
Avg. Multi Core Mixed Speed
709 Pts Hugely faster multi-core speed.
+177%
256 Pts
SC Mixed
OC Single Core Mixed Speed
152 Pts Much faster OC single-core speed.
+43%
106 Pts
QC Mixed
OC Quad Core Mixed Speed
557 Pts Hugely faster OC quad-core speed.
+99%
280 Pts
MC Mixed
OC Multi Core Mixed Speed
800 Pts Hugely faster OC multi-core speed.
+184%
282 Pts
Market Share
Based on 18,633,488 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.54 % Hugely higher market share.
+756%
0.18 %
Value
Value For Money
90.5 % Better value.
+21%
74.9 %
User Rating
UBM User Rating
128 % Hugely more popular.
+113%
60 %
Price
Price (score)
$340 $120 Much cheaper.
+65%
Age
Newest
30 Months Much more recent.
+48%
58 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
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
4.2 GHz Faster base frequency.
+17%
3.6 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+25%
3.6 GHz
SC Int
Single Core Integer Speed
148 Pts Much faster single-core int speed.
+40%
106 Pts
SC Float
Single Core Floating Point Speed
158 Pts Much faster single-core fp speed.
+48%
107 Pts
QC Int
Quad Core Integer Speed
538 Pts Hugely faster quad-core int speed.
+102%
266 Pts
QC Float
Quad Core Floating Point Speed
580 Pts Hugely faster quad-core fp speed.
+104%
285 Pts
MC Int
Multi Core Integer Speed
731 Pts Hugely faster multi-core int speed.
+174%
267 Pts
MC Float
Multi Core Floating Point Speed
856 Pts Hugely faster multi-core fp speed.
+199%
286 Pts
Series
CPU Architecture
Kaby Lake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 630 HD 4400
Launch Date
Launch Date
Q1'17 Q3'14
Cache
Cache
8 MB 3 MB SmartCache
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $117.00
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
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® HD Graphics 4400
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 350 MHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 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 i7-7700K 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 Intel Core i3-4160 is a dual-core four threaded 4th generation (Haswell) processor. It was released in Q3 2014 and scores a respectable 91 for effective speed. With its base frequency of 3.6 GHz, the 4160 is fast enough to run the vast majority of applications smoothly and it’s very reasonably priced for its performance which make it a sensible choice even when considering building a gaming PC. Although the integrated Intel HD Graphics 4400 are absolutely fine for general desktop use such as web browsing and word processing they may bottleneck a gaming machine. A 20% price premium would buy the slightly older i3-4350 which has a 33% larger (4MB) cache but its only about 1% faster (full comparison here). Overall the i3-4160 represents the best value for money I have seen outside Intel's Pentium and Celeron range of CPUs. [Nov '14 CPUPro]

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Processor Rankings (Price vs Performance) July 2019 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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