IntelBX80646I74790K
IntelBX80677I57600K

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

Real World Speed
Performance profile from 63,092 user samples
58,826 User Benchmarks
Best Bench: 100% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 76% Base clock 4 GHz, turbo 0.6 GHz (avg)
Poor: 76% Great: 100%
SPEED RANK: 13th / 952
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
4,266 User Benchmarks
Best Bench: 113% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 81% Base clock 3.8 GHz, turbo 4.2 GHz (avg)
Poor: 81% Great: 113%
SPEED RANK: 4th / 952
Gaming
Gaming 97%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 59%
Gunboat
Effective Speed
Effective CPU Speed
88.1 % -10% 96.8 % Slightly faster effective speed.
+10%
SC Mixed
Avg. Single Core Mixed Speed
124 Pts -6% 132 Pts Slightly faster single-core speed.
+6%
QC Mixed
Avg. Quad Core Mixed Speed
432 Pts -17% 504 Pts Faster quad-core speed.
+17%
MC Mixed
Avg. Multi Core Mixed Speed
649 Pts Faster multi-core speed.
+26%
515 Pts -26%
SC Mixed
OC Single Core Mixed Speed
137 Pts -10% 151 Pts Slightly faster OC single-core speed.
+10%
QC Mixed
OC Quad Core Mixed Speed
506 Pts -17% 592 Pts Faster OC quad-core speed.
+17%
MC Mixed
OC Multi Core Mixed Speed
735 Pts Faster OC multi-core speed.
+22%
600 Pts -22%
Market Share
Based on 3,220,593 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.1 % Higher market share.
+24%
1.7 % -24%
Value
Value For Money
83.3 % -30% 109 % Much better value.
+30%
User Rating
UBM User Rating
95 % -14% 108 % Slightly more popular.
+14%
Price
Price (score)
$339 -37% $215 Much cheaper.
+37%
Age
Newest
33 Months -94% 2 Months Hugely more recent.
+94%
TDP
Thermal Design Power (TDP)
88 Watts +3% 91 Watts -3%
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
4 GHz Slightly faster base frequency.
+5%
3.8 GHz -5%
Turbo Clock
Turbo Clock Speed
4.4 GHz +5% 4.2 GHz -5%
SC Int
Single Core Integer Speed
139 Pts -5% 146 Pts Slightly faster single-core int speed.
+5%
SC Float
Single Core Floating Point Speed
140 Pts -11% 156 Pts Slightly faster single-core fp speed.
+11%
QC Int
Quad Core Integer Speed
507 Pts -14% 578 Pts Slightly faster quad-core int speed.
+14%
QC Float
Quad Core Floating Point Speed
513 Pts -21% 619 Pts Faster quad-core fp speed.
+21%
MC Int
Multi Core Integer Speed
702 Pts Faster multi-core int speed.
+22%
576 Pts -22%
MC Float
Multi Core Floating Point Speed
743 Pts Faster multi-core fp speed.
+20%
621 Pts -20%
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
$339.00 - $350.00 $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
1.25 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
TSX-NI
Intel® TSX-NI
No Yes

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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]

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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) March 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.

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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.

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CPUGPUSSD
Intel Core i7-7700K $310AMD RX 480 $190Samsung 850 Evo 250GB $94
AMD Ryzen 7 1700 $330Nvidia GTX 1070 $370Samsung 850 Pro 256GB $130
Intel Core i5-7600K $215Nvidia GTX 1060-6GB $219Samsung 850 Evo 500GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $430SanDisk Extreme 32GB $26
Seagate Barracuda 7200.14 1TB $50Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $9
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