IntelBX80677I77700
IntelBX80646I74790K
$348

4 Cores, 8 Threads @3.6GHz, Kaby Lake.
Release date: Q1 2017.

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About
 $348 

4 Cores, 8 Threads @4.0GHz, Haswell.
Release date: Q2 2014.

Real World Speed
Performance profile from 363,864 user samples
121,955 User Benchmarks
Best Bench: 85% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 61% Base clock 3.6 GHz, turbo 0.6 GHz (avg)
Poor: 61% Great: 85%
SPEED RANK: 90th / 1206
Gaming
Gaming 75%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 54%
Yacht
241,909 User Benchmarks
Best Bench: 91% Base clock 5 GHz, turbo 6.25 GHz (avg)
Worst Bench: 66% Base clock 4 GHz, turbo 0.85 GHz (avg)
Poor: 66% Great: 91%
SPEED RANK: 64th / 1206
Gaming
Gaming 80%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 56%
Gunboat
Effective Speed
Effective CPU Speed
75.2 % 79.6 % Slightly faster effective speed.
+6%
1-Core
Avg. Single Core Mixed Speed
117 Pts 124 Pts Slightly faster single-core speed.
+6%
2-Core
Avg. Dual Core Mixed Speed
225 Pts 240 Pts Slightly faster dual-core speed.
+7%
4-Core
Avg. Quad Core Mixed Speed
403 Pts 427 Pts Slightly faster quad-core speed.
+6%
8-Core
Avg. Octa Core Mixed Speed
605 Pts 633 Pts +5%
1-Core
OC Single Core Mixed Speed
128 Pts 137 Pts Slightly faster OC single-core speed.
+7%
2-Core
OC Dual Core Mixed Speed
251 Pts 272 Pts Slightly faster OC dual-core speed.
+8%
4-Core
OC Quad Core Mixed Speed
481 Pts 513 Pts Slightly faster OC quad-core speed.
+7%
8-Core
OC Octa Core Mixed Speed
667 Pts 717 Pts Slightly faster OC octa-core speed.
+7%
Market Share
Based on 22,715,497 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.71 % 1.13 % Much higher market share.
+59%
Value
Value For Money
73.1 % 74.9 % +2%
User Rating
UBM User Rating
85 % 145 % Much more popular.
+71%
Price
Price (score)
$307 Slightly cheaper.
+12%
$348
Age
Newest
35 Months Much more recent.
+47%
66 Months
TDP
Thermal Design Power (TDP)
65 Watts More energy efficient.
+26%
88 Watts
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
3.6 GHz 4 GHz Slightly faster base frequency.
+11%
Turbo Clock
Turbo Clock Speed
4.2 GHz 4.4 GHz +5%
64-Core
OC Multi Core Mixed Speed
669 Pts 719 Pts Slightly faster OC 64-core speed.
+7%
64-Core
Avg. Multi Core Mixed Speed
612 Pts 640 Pts +5%
Series
CPU Architecture
Kaby Lake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 630 HD 4600
Launch Date
Launch Date
Q1'17 Q2'14
Cache
Cache
8 MB 8 MB SmartCache
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$303.00 - $312.00 $339.00 - $350.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) 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
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

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]

MORE DETAILS

Processor Rankings (Price vs Performance) December 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. Effective speed is adjusted by current prices to yield a value for money rating. 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.
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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - 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 current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

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