IntelBX80646I74790K
IntelBX80677I77700K

4 Cores, 8 Threads
@4.2GHz Kaby Lake (2017)

Real World Speed
Performance profile from 119,324 user samples
79,347 User Benchmarks
Best Bench: 98% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 76% Base clock 4 GHz, turbo 0.75 GHz (avg)
Poor: 76% Great: 98%
SPEED RANK: 15th / 961
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
39,977 User Benchmarks
Best Bench: 113% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 90% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 90% Great: 113%
SPEED RANK: 3rd / 961
Gaming
Gaming 101%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 74%
Battleship
Effective Speed
Effective CPU Speed
87.8 % -15% 101 % Slightly faster effective speed.
+15%
SC Mixed
Avg. Single Core Mixed Speed
124 Pts -13% 140 Pts Slightly faster single-core speed.
+13%
QC Mixed
Avg. Quad Core Mixed Speed
430 Pts -15% 495 Pts Faster quad-core speed.
+15%
MC Mixed
Avg. Multi Core Mixed Speed
644 Pts -16% 750 Pts Faster multi-core speed.
+16%
SC Mixed
OC Single Core Mixed Speed
135 Pts -14% 154 Pts Slightly faster OC single-core speed.
+14%
QC Mixed
OC Quad Core Mixed Speed
498 Pts -14% 568 Pts Slightly faster OC quad-core speed.
+14%
MC Mixed
OC Multi Core Mixed Speed
720 Pts -16% 836 Pts Faster OC multi-core speed.
+16%
Market Share
Based on 4,104,252 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.97 % -111% 4.16 % Hugely higher market share.
+111%
Value
Value For Money
86.9 % -13% 98.4 % Slightly better value.
+13%
User Rating
UBM User Rating
89 % -54% 137 % Much more popular.
+54%
Price
Price (score)
$300 +3% $309 -3%
Age
Newest
36 Months -86% 5 Months Hugely more recent.
+86%
TDP
Thermal Design Power (TDP)
88 Watts +3% 91 Watts -3%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads 0% 8 threads 0%
Lithography
Manufacturing process
22 nm -36% 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
4 GHz -5% 4.2 GHz +5%
Turbo Clock
Turbo Clock Speed
4.4 GHz -2% 4.5 GHz +2%
SC Int
Single Core Integer Speed
137 Pts -10% 151 Pts Slightly faster single-core int speed.
+10%
SC Float
Single Core Floating Point Speed
139 Pts -14% 158 Pts Slightly faster single-core fp speed.
+14%
QC Int
Quad Core Integer Speed
507 Pts -9% 554 Pts Slightly faster quad-core int speed.
+9%
QC Float
Quad Core Floating Point Speed
510 Pts -15% 587 Pts Faster quad-core fp speed.
+15%
MC Int
Multi Core Integer Speed
689 Pts -12% 769 Pts Slightly faster multi-core int speed.
+12%
MC Float
Multi Core Floating Point Speed
729 Pts -21% 879 Pts Faster multi-core fp speed.
+21%
Series
CPU Architecture
Haswell (2013) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1150 FCLGA1151
Graphics
Integrated Graphics
HD 4600 HD 630
Launch Date
Launch Date
Q2'14 Q1'17
Cache
Cache
8 MB SmartCache 8 MB
Lithography
Lithography
22 nm 14 nm
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013D PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.25 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
TSX-NI
Intel® TSX-NI
No Yes

More specs » More specs »
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The Intel Core i7-4790K, codenamed Devil's Canyon, is an upgraded 4770K, Intel's current flagship i7. The 4790K features an improved thermal interface which enables it to dissipate heat more efficiently than the 4770K. Comparing the 4770K and 4790K shows that stock performance has improved by 13% which is consistent with the base clock jump from 3.5 GHz to 4.0 GHz. OC performance remains unchanged. Comparing the 4790K and 4790 shows that at stock clocks the 4790K is around 16% faster which considering the small price difference makes the 4790K a far better choice. Previously Intel targeted the unlocked K versions at overclockers but with Devil's Canyon they have included VT-d on the K chip and this time it's squarely aimed at both power users and overclockers alike. Until the release of Broadwell in six months, the 4790K is the high end CPU of choice. [Jul '14 CPUPro]

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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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Processor Rankings (Price vs Performance) June 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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.

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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 i7-7700K $309Nvidia GTX 1070 $390Samsung 850 Evo 250GB $100
AMD Ryzen 7 1700 $297AMD RX 480 $608Samsung 850 Pro 256GB $125
Intel Core i5-7600K $233Nvidia GTX 1060-6GB $243Samsung 850 Evo 500GB $169
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $696SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46HyperX Fury DDR4 2133 C14 2x8GB $144SanDisk Ultra Fit 32GB $13
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