Real World Speed
Performance profile from 87,720 user samples
21,278 User Benchmarks
Best Bench: 89% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Worst Bench: 71% Base clock 3.4 GHz, turbo 1.8 GHz (avg)
Poor: 71% Great: 89%
SPEED RANK: 26th / 956
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 60%
Gunboat
66,442 User Benchmarks
Best Bench: 100% Base clock 4 GHz, turbo 5 GHz (avg)
Worst Bench: 76% Base clock 4 GHz, turbo 0.65 GHz (avg)
Poor: 76% Great: 100%
SPEED RANK: 15th / 956
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
Effective Speed
Effective CPU Speed
80.8 % -8% 87.5 % Slightly faster effective speed.
+8%
SC Mixed
Avg. Single Core Mixed Speed
112 Pts -10% 123 Pts Slightly faster single-core speed.
+10%
QC Mixed
Avg. Quad Core Mixed Speed
398 Pts -8% 429 Pts Slightly faster quad-core speed.
+8%
MC Mixed
Avg. Multi Core Mixed Speed
608 Pts -7% 649 Pts Slightly faster multi-core speed.
+7%
SC Mixed
OC Single Core Mixed Speed
123 Pts -11% 137 Pts Slightly faster OC single-core speed.
+11%
QC Mixed
OC Quad Core Mixed Speed
453 Pts -12% 507 Pts Slightly faster OC quad-core speed.
+12%
MC Mixed
OC Multi Core Mixed Speed
633 Pts -16% 733 Pts Faster OC multi-core speed.
+16%
Market Share
Based on 3,531,292 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.2 % -92% 2.3 % Hugely higher market share.
+92%
Value
Value For Money
80.5 % -3% 82.8 % +3%
User Rating
UBM User Rating
60 % -52% 91 % Much more popular.
+52%
Price
Price (score)
$295 Slightly cheaper.
+13%
$338 -13%
Age
Newest
19 Months Much more recent.
+44%
34 Months -44%
TDP
Thermal Design Power (TDP)
65 Watts More energy efficient.
+26%
88 Watts -26%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads 0% 8 threads 0%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm -36%
Base Clock
Base Clock Speed
3.4 GHz -18% 4 GHz Faster base frequency.
+18%
Turbo Clock
Turbo Clock Speed
4 GHz -10% 4.4 GHz Slightly faster turbo frequency.
+10%
SC Int
Single Core Integer Speed
120 Pts -16% 139 Pts Faster single-core int speed.
+16%
SC Float
Single Core Floating Point Speed
126 Pts -11% 140 Pts Slightly faster single-core fp speed.
+11%
QC Int
Quad Core Integer Speed
441 Pts -18% 519 Pts Faster quad-core int speed.
+18%
QC Float
Quad Core Floating Point Speed
466 Pts -11% 515 Pts Slightly faster quad-core fp speed.
+11%
MC Int
Multi Core Integer Speed
585 Pts -20% 700 Pts Faster multi-core int speed.
+20%
MC Float
Multi Core Floating Point Speed
663 Pts -12% 745 Pts Slightly faster multi-core fp speed.
+12%
Series
CPU Architecture
Skylake (2015) Haswell (2013)
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 530 HD 4600
Launch Date
Launch Date
Q3'15 Q2'14
Embedded Options Available
Embedded Options Available
Yes No
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
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 4600
Graphics Output
Graphics Output
eDP/DP/HDMI/DVI eDP/DP/HDMI/DVI/VGA
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
Graphics and IMC Lithography
Graphics and IMC Lithography
14 nm 22 nm
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
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) April 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.

UserBenchmark of the month

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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-7700K $310AMD RX 480 $238Samsung 850 Evo 250GB $100
Intel Core i5-7600K $229Nvidia GTX 1070 $330Samsung 850 Evo 500GB $179
AMD Ryzen 7 1700 $319Nvidia GTX 1060-6GB $219Samsung 850 Pro 256GB $148
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $69G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $136SanDisk Ultra Fit 32GB $13
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