IntelBX80646I74790
IntelBX80677I57600K

4 Cores, 8 Threads
@3.6GHz Haswell (2013)

4 Cores, 4 Threads
@3.8GHz Kaby Lake (2017)

Real World Speed
Performance profile from 53,471 user samples
32,865 User Benchmarks
Best Bench: 85% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 65% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 65% Great: 85%
SPEED RANK: 53rd / 968
Gaming
Gaming 76%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 56%
Gunboat
20,606 User Benchmarks
Best Bench: 111% Base clock 3.8 GHz
Worst Bench: 78% Base clock 3.8 GHz, turbo 0.8 GHz (avg)
Poor: 78% Great: 111%
SPEED RANK: 13th / 968
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
76.1 % -24% 94.2 % Faster effective speed.
+24%
SC Mixed
Avg. Single Core Mixed Speed
107 Pts -21% 129 Pts Faster single-core speed.
+21%
QC Mixed
Avg. Quad Core Mixed Speed
373 Pts -31% 489 Pts Much faster quad-core speed.
+31%
MC Mixed
Avg. Multi Core Mixed Speed
566 Pts Slightly faster multi-core speed.
+12%
504 Pts -12%
SC Mixed
OC Single Core Mixed Speed
116 Pts -29% 150 Pts Faster OC single-core speed.
+29%
QC Mixed
OC Quad Core Mixed Speed
429 Pts -36% 583 Pts Much faster OC quad-core speed.
+36%
MC Mixed
OC Multi Core Mixed Speed
599 Pts +1% 591 Pts -1%
Market Share
Based on 4,697,666 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.04 % -48% 1.54 % Much higher market share.
+48%
Value
Value For Money
74.6 % -42% 106 % Much better value.
+42%
User Rating
UBM User Rating
77 % -55% 119 % Much more popular.
+55%
Price
Price (score)
$308 -31% $212 Much cheaper.
+31%
Age
Newest
39 Months -82% 7 Months Hugely more recent.
+82%
TDP
Thermal Design Power (TDP)
84 Watts Slightly more energy efficient.
+8%
91 Watts -8%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads -100%
Lithography
Manufacturing process
22 nm -36% 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.6 GHz -6% 3.8 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
4 GHz -5% 4.2 GHz +5%
SC Int
Single Core Integer Speed
118 Pts -22% 144 Pts Faster single-core int speed.
+22%
SC Float
Single Core Floating Point Speed
120 Pts -30% 156 Pts Much faster single-core fp speed.
+30%
QC Int
Quad Core Integer Speed
439 Pts -29% 566 Pts Faster quad-core int speed.
+29%
QC Float
Quad Core Floating Point Speed
439 Pts -38% 607 Pts Much faster quad-core fp speed.
+38%
MC Int
Multi Core Integer Speed
572 Pts +1% 569 Pts -1%
MC Float
Multi Core Floating Point Speed
606 Pts -2% 617 Pts +2%
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 6 MB
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$303.00 - $312.00 $242.00 - $243.00
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013D PCG 2015C (65W)
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
1.2 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
PCI Express Revision
PCI Express Revision
Up to 3.0 3.0

More specs » More specs »
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The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

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The i5-7600K targets high end gamers, it sits just behind the flagship i7-7700K in Intel’s Kaby Lake lineup. The 7600K will likely be the most popular gaming CPU of 2017 (some competition from AMD’s upcoming Zen/Ryzen CPUs, would be very welcome). Comparing the 7600K and 6600K shows that the two processors are very closely matched and comparing the 7600K vs the hyper-threaded 7700K highlights the relative strength of the 7700K for workstation performance. There are no significant architectural differences between Kaby Lake and Skylake so, when fully overclocked, the two generations should perform similarly but Kaby Lake offers faster base clocks, improved speed shift technology which helps CPU responsiveness, and better integrated graphics[Jan '17 CPUPro]

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Processor Rankings (Price vs Performance) August 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

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CPUGPUSSD
Intel Core i7-7700K $300Nvidia GTX 1070 $410Samsung 850 Evo 250GB $99
AMD Ryzen 7 1700 $280AMD RX 480 $390Samsung 850 Pro 256GB $133
Intel Core i5-7600K $212Nvidia GTX 1060-6GB $271Samsung 850 Evo 500GB $165
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $718SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $83Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $55HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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