IntelBX80658i75775C
IntelBX80646I74790K

4 Cores, 8 Threads @3.3 GHz, Broadwell.
Release date ≈ Q2 2015.

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

Real World Speed
Performance profile from 191,256 user samples
584 User Benchmarks
Best Bench: 97% Base clock 3.3 GHz
Worst Bench: 71% Base clock 3.3 GHz
Poor: 71% Great: 97%
SPEED RANK: 62nd / 1144
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 60%
Destroyer
190,672 User Benchmarks
Best Bench: 98% Base clock 4 GHz, turbo 5 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 98%
SPEED RANK: 55th / 1144
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 63%
Destroyer
Effective Speed
Effective CPU Speed
83.8 % 85.3 % +2%
SC Mixed
Avg. Single Core Mixed Speed
118 Pts 122 Pts +3%
QC Mixed
Avg. Quad Core Mixed Speed
414 Pts 415 Pts +0%
MC Mixed
Avg. Multi Core Mixed Speed
602 Pts 636 Pts Slightly faster multi-core speed.
+6%
SC Mixed
OC Single Core Mixed Speed
132 Pts 136 Pts +3%
QC Mixed
OC Quad Core Mixed Speed
499 Pts +1% 494 Pts
MC Mixed
OC Multi Core Mixed Speed
682 Pts 717 Pts Slightly faster OC multi-core speed.
+5%
Market Share
Based on 13,905,023 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 1.43 % Insanely higher market share.
+14,200%
Value
Value For Money
75.7 % 78.5 % +4%
User Rating
UBM User Rating
53 % 96 % Hugely more popular.
+81%
Price
Price (score)
$383 $365 +5%
Age
Newest
42+ Months More recent.
+24%
55 Months
SC Int
Single Core Integer Speed
126 Pts 138 Pts Slightly faster single-core int speed.
+10%
SC Float
Single Core Floating Point Speed
138 Pts +1% 137 Pts
QC Int
Quad Core Integer Speed
488 Pts 494 Pts +1%
QC Float
Quad Core Floating Point Speed
523 Pts +4% 504 Pts
MC Int
Multi Core Integer Speed
631 Pts 679 Pts Slightly faster multi-core int speed.
+8%
MC Float
Multi Core Floating Point Speed
731 Pts +0% 728 Pts
Launch Date
Launch Date
Q2'15 Q2'14
Cache
Cache
6 MB 8 MB SmartCache
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$366.00 - $377.00 $339.00 - $350.00
Thermal Solution Specification
Thermal Solution Specification
PCA 2013D PCG 2013D
Memory Types
Memory Types
DDR3L-1333/1600 @ 1.5V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Processor Graphics
Processor Graphics ‡
Intel® Iris™ Pro Graphics 6200 Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
300 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
32 GB 2 GB
Graphics and IMC Lithography
Graphics and IMC Lithography
14 nm 22 nm
TSX-NI
Intel® TSX-NI
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) January 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.
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.
  • - 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.
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  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

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