IntelBX80646I74790K
IntelBX80677I57600K

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

4 Cores, 4 Threads @3.8GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 221,040 user samples
150,725 User Benchmarks
Best Bench: 98% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 73% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 73% Great: 98%
SPEED RANK: 43rd / 1128
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 63%
Destroyer
70,315 User Benchmarks
Best Bench: 111% Base clock 3.8 GHz, turbo 5.05 GHz (avg)
Worst Bench: 71% Base clock 3.8 GHz, turbo 2.05 GHz (avg)
Poor: 71% Great: 111%
SPEED RANK: 29th / 1128
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 56%
Gunboat
Effective Speed
Effective CPU Speed
85.5 % 91.5 % Slightly faster effective speed.
+7%
SC Mixed
Avg. Single Core Mixed Speed
122 Pts 127 Pts +4%
QC Mixed
Avg. Quad Core Mixed Speed
416 Pts 473 Pts Slightly faster quad-core speed.
+14%
MC Mixed
Avg. Multi Core Mixed Speed
635 Pts Much faster multi-core speed.
+31%
485 Pts
SC Mixed
OC Single Core Mixed Speed
136 Pts 149 Pts Slightly faster OC single-core speed.
+10%
QC Mixed
OC Quad Core Mixed Speed
498 Pts 579 Pts Faster OC quad-core speed.
+16%
MC Mixed
OC Multi Core Mixed Speed
719 Pts Faster OC multi-core speed.
+25%
575 Pts
Market Share
Based on 10,976,739 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.45 % Hugely higher market share.
+86%
0.78 %
Value
Value For Money
78.6 % 99.4 % Better value.
+26%
User Rating
UBM User Rating
87 % 93 % Slightly more popular.
+7%
Price
Price (score)
$365 $234 Much cheaper.
+36%
Age
Newest
51 Months 20 Months Much more recent.
+61%
TDP
Thermal Design Power (TDP)
88 Watts +3% 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
4 GHz Slightly faster base frequency.
+5%
3.8 GHz
Turbo Clock
Turbo Clock Speed
4.4 GHz +5% 4.2 GHz
SC Int
Single Core Integer Speed
138 Pts 144 Pts +4%
SC Float
Single Core Floating Point Speed
138 Pts 156 Pts Slightly faster single-core fp speed.
+13%
QC Int
Quad Core Integer Speed
494 Pts 553 Pts Slightly faster quad-core int speed.
+12%
QC Float
Quad Core Floating Point Speed
503 Pts 609 Pts Faster quad-core fp speed.
+21%
MC Int
Multi Core Integer Speed
684 Pts Faster multi-core int speed.
+23%
554 Pts
MC Float
Multi Core Floating Point Speed
730 Pts Faster multi-core fp speed.
+20%
610 Pts
Series
CPU Architecture
Haswell Kaby Lake
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

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

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]

MORE DETAILS

Processor Rankings (Price vs Performance) September 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.
  • 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.
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