IntelBX80677I77700K
IntelBX80646I54670K

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

4 Cores, 4 Threads @3.4GHz, Haswell.
Release date: Q2 2013.

Real World Speed
Performance profile from 355,589 user samples
285,415 User Benchmarks
Best Bench: 109% Base clock 4.2 GHz, turbo 5.15 GHz (avg)
Worst Bench: 82% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 82% Great: 109%
SPEED RANK: 39th / 1158
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 70%
Battleship
70,174 User Benchmarks
Best Bench: 95% Base clock 3.4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 59% Base clock 3.4 GHz, turbo 3.75 GHz (avg)
Poor: 59% Great: 95%
SPEED RANK: 89th / 1158
Gaming
Gaming 79%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 48%
Yacht
Effective Speed
Effective CPU Speed
95.5 % Faster effective speed.
+21%
78.9 %
SC Mixed
Avg. Single Core Mixed Speed
135 Pts Faster single-core speed.
+24%
109 Pts
QC Mixed
Avg. Quad Core Mixed Speed
467 Pts Slightly faster quad-core speed.
+15%
407 Pts
MC Mixed
Avg. Multi Core Mixed Speed
705 Pts Much faster multi-core speed.
+68%
420 Pts
SC Mixed
OC Single Core Mixed Speed
150 Pts Faster OC single-core speed.
+17%
128 Pts
QC Mixed
OC Quad Core Mixed Speed
551 Pts Slightly faster OC quad-core speed.
+10%
500 Pts
MC Mixed
OC Multi Core Mixed Speed
798 Pts Much faster OC multi-core speed.
+59%
501 Pts
Market Share
Based on 17,786,142 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.65 % Hugely higher market share.
+267%
0.45 %
Value
Value For Money
88.3 % Slightly better value.
+9%
81.1 %
User Rating
UBM User Rating
131 % Hugely more popular.
+90%
69 %
Price
Price (score)
$359 $270 Cheaper.
+25%
Age
Newest
29 Months Much more recent.
+60%
72 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 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.
+24%
3.4 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+18%
3.8 GHz
SC Int
Single Core Integer Speed
146 Pts Slightly faster single-core int speed.
+12%
130 Pts
SC Float
Single Core Floating Point Speed
157 Pts Faster single-core fp speed.
+23%
128 Pts
QC Int
Quad Core Integer Speed
536 Pts Slightly faster quad-core int speed.
+5%
509 Pts
QC Float
Quad Core Floating Point Speed
573 Pts Slightly faster quad-core fp speed.
+14%
502 Pts
MC Int
Multi Core Integer Speed
727 Pts Much faster multi-core int speed.
+43%
509 Pts
MC Float
Multi Core Floating Point Speed
852 Pts Much faster multi-core fp speed.
+69%
503 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 6 MB SmartCache
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $242.00 - $243.00
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 1.2 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
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 i7-7700K 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 i5-4670K is the latest middle tier desktop processor from the fourth generation of Intel's Core range codenamed "Haswell". In terms of raw performance this processor slightly bests its predecessor the 3570K achieving approximately 10% higher server benchmark scores. In terms of real world performance the single core improvements are more relevant as more than two cores are rarely used for most typical consumer tasks and these have also improved by around 10% over the 3570K. It's not all good news though as the price increase of 14% more than offsets the performance improvements. This processor currently represents approximately the same value for money as its predecessor, the i5-3570K. [Jun '13 CPUPro]

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Processor Rankings (Price vs Performance) June 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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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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