IntelBX80662I56600
IntelBX80646I74790K
Real World Speed
Performance profile from 148,185 user samples
25,151 User Benchmarks
Best Bench: 87% Base clock 2.4 GHz, turbo 3.3 GHz (avg)
Worst Bench: 61% Base clock 3.3 GHz, turbo 0.8 GHz (avg)
Poor: 61% Great: 87%
SPEED RANK: 64th / 1104
Gaming
Gaming 79%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 48%
Yacht
123,034 User Benchmarks
Best Bench: 100% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.5 GHz (avg)
Poor: 70% Great: 100%
SPEED RANK: 38th / 1104
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
Effective Speed
Effective CPU Speed
78.9 % 87.6 % Slightly faster effective speed.
+11%
SC Mixed
Avg. Single Core Mixed Speed
108 Pts 125 Pts Faster single-core speed.
+16%
QC Mixed
Avg. Quad Core Mixed Speed
410 Pts 427 Pts +4%
MC Mixed
Avg. Multi Core Mixed Speed
421 Pts 639 Pts Much faster multi-core speed.
+52%
SC Mixed
OC Single Core Mixed Speed
121 Pts 138 Pts Slightly faster OC single-core speed.
+14%
QC Mixed
OC Quad Core Mixed Speed
454 Pts 509 Pts Slightly faster OC quad-core speed.
+12%
MC Mixed
OC Multi Core Mixed Speed
458 Pts 722 Pts Much faster OC multi-core speed.
+58%
Market Share
Based on 8,842,285 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.35 % 1.47 % Hugely higher market share.
+320%
Value
Value For Money
90.2 % Slightly better value.
+11%
81.6 %
User Rating
UBM User Rating
62 % 89 % Much more popular.
+44%
Price
Price (score)
$204 Much cheaper.
+42%
$352
Age
Newest
32 Months Much more recent.
+32%
47 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
4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.3 GHz 4 GHz Faster base frequency.
+21%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.4 GHz Slightly faster turbo frequency.
+13%
SC Int
Single Core Integer Speed
118 Pts 138 Pts Faster single-core int speed.
+17%
SC Float
Single Core Floating Point Speed
125 Pts 138 Pts Slightly faster single-core fp speed.
+10%
QC Int
Quad Core Integer Speed
444 Pts 504 Pts Slightly faster quad-core int speed.
+14%
QC Float
Quad Core Floating Point Speed
469 Pts 511 Pts Slightly faster quad-core fp speed.
+9%
MC Int
Multi Core Integer Speed
443 Pts 687 Pts Much faster multi-core int speed.
+55%
MC Float
Multi Core Floating Point Speed
469 Pts 733 Pts Much faster multi-core fp speed.
+56%
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
Cache
Cache
6 MB SmartCache 8 MB SmartCache
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$213.00 - $224.00 $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
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
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) May 2018 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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.

 Frequently Asked Questions

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CPUGPUSSD
AMD Ryzen 5 1600 $169Nvidia GTX 1070 $447Samsung 850 Evo 250GB $100
Intel Core i7-8700K $325Nvidia GTX 1060-6GB $295Samsung 850 Evo 500GB $137
Intel Core i7-7700K $299AMD RX 480 $330Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $960SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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