Intel
IntelBX80646I74790K
$348
  

4 Cores, 4 Threads @2.8 GHz, Skylake.
Release date ≈ Q1 2016.

 $348 

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

Real World Speed
Performance profile from 471,659 user samples
15,913 User Benchmarks
Best Bench: 78% Base clock 2.8 GHz, turbo 3.2 GHz (avg)
Worst Bench: 53% Base clock 2.8 GHz, turbo 0.8 GHz (avg)
Poor: 53% Great: 78%
SPEED RANK: 445th / 1442
Gaming
Gaming 68%
Battle cruiser
Desktop
Desktop 72%
Battleship
Workstation
Workstation 51%
Yacht
455,746 User Benchmarks
Best Bench: 87% Base clock 4 GHz, turbo 4.6 GHz (avg)
Worst Bench: 67% Base clock 4 GHz, turbo 0.7 GHz (avg)
Poor: 67% Great: 87%
SPEED RANK: 251st / 1442
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed
67.9 % 78.9 % Faster effective speed.
+16%
Memory
Avg. Memory Latency
79.5 Pts 88.1 Pts Lower memory latency.
+11%
1-Core
Avg. Single Core Speed
92.6 Pts 114 Pts Faster single-core speed.
+23%
2-Core
Avg. Dual Core Speed
183 Pts 216 Pts Faster dual-core speed.
+18%
4-Core
Avg. Quad Core Speed
325 Pts 378 Pts Faster quad-core speed.
+16%
8-Core
Avg. Octa Core Speed
336 Pts 560 Pts Much faster octa-core speed.
+67%
Memory
OC Memory Latency
91.1 Pts 96.8 Pts Slightly lower OC memory latency.
+6%
1-Core
OC Single Core Speed
105 Pts 128 Pts Faster OC single-core speed.
+22%
2-Core
OC Dual Core Speed
207 Pts 248 Pts Faster OC dual-core speed.
+20%
4-Core
OC Quad Core Speed
399 Pts 433 Pts Slightly faster OC quad-core speed.
+9%
8-Core
OC Octa Core Speed
399 Pts 643 Pts Much faster OC octa-core speed.
+61%
Market Share
Based on 67,710,981 CPUs tested
Market Share
Market Share (trailing 30 days)
0.03 % 0.59 % Insanely higher market share.
+1,867%
User Rating
UBM User Rating
50 % 88 % Much more popular.
+76%
Age
Newest
97+ Months More recent.
+18%
118 Months
64-Core
OC Multi Core Speed
397 Pts 654 Pts Much faster OC 64-core speed.
+65%
64-Core
Avg. Multi Core Speed
337 Pts 573 Pts Much faster 64-core speed.
+70%
Launch Date
Launch Date
Q4'15 Q2'14
Cache
Cache
6 MB 8 MB SmartCache
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$182.00 - $187.00 $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency
3.4 GHz 4.4 GHz
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 510 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
950 MHz 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

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]

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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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 Frequently Asked Questions

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