Intel
IntelBX80646I74790K
$348
  

2 Cores, 4 Threads @2.13 GHz, Arrandale.
Release date ≤ Q1 2014.

 $348 

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

Real World Speed
Performance profile from 457,776 user samples
2,030 User Benchmarks
Best Bench: 45% Base clock 2.15 GHz
Worst Bench: 32% Base clock 2.15 GHz, turbo 1.2 GHz (avg)
Poor: 32% Great: 45%
SPEED RANK: 1047th / 1442
Gaming
Gaming 41%
Speed boat
Desktop
Desktop 47%
Yacht
Workstation
Workstation 28%
Raft
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
40.6 % 78.9 % Hugely faster effective speed.
+94%
Memory
Avg. Memory Latency
60.2 Pts 88.1 Pts Much lower memory latency.
+46%
1-Core
Avg. Single Core Speed
59 Pts 114 Pts Hugely faster single-core speed.
+93%
2-Core
Avg. Dual Core Speed
94.7 Pts 216 Pts Hugely faster dual-core speed.
+128%
4-Core
Avg. Quad Core Speed
123 Pts 378 Pts Hugely faster quad-core speed.
+207%
8-Core
Avg. Octa Core Speed
125 Pts 560 Pts Hugely faster octa-core speed.
+348%
Memory
OC Memory Latency
66.6 Pts 96.8 Pts Much lower OC memory latency.
+45%
1-Core
OC Single Core Speed
72.2 Pts 128 Pts Much faster OC single-core speed.
+77%
2-Core
OC Dual Core Speed
122 Pts 248 Pts Hugely faster OC dual-core speed.
+103%
4-Core
OC Quad Core Speed
143 Pts 433 Pts Hugely faster OC quad-core speed.
+203%
8-Core
OC Octa Core Speed
143 Pts 643 Pts Hugely faster OC octa-core speed.
+350%
Market Share
Based on 67,697,035 CPUs tested
Market Share
Market Share (trailing 30 days)
0 % 0.67 % Insanely higher market share.
+∞%
User Rating
UBM User Rating
51 % 88 % Much more popular.
+73%
Age
Newest
122+ Months 118 Months +3%
64-Core
OC Multi Core Speed
144 Pts 654 Pts Hugely faster OC 64-core speed.
+354%
64-Core
Avg. Multi Core Speed
127 Pts 573 Pts Hugely faster 64-core speed.
+351%
Launch Date
Launch Date
Q1'10 Q2'14
Cache
Cache
4 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
32 nm 22 nm
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency
2.933 GHz 4.4 GHz
Bus Speed
Bus Speed
2.5 GT/s DMI 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type)
8 GB 32 GB
Memory Types
Memory Types
DDR3 800/1066 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
17.1 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
266 MHz 350 MHz
# of Displays Supported
# of Displays Supported ‡
2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
566 MHz 1.25 GHz
Package Size
Package Size
BGA 34mm x 28mm 37.5mm x 37.5mm
Graphics and IMC Lithography
Graphics and IMC Lithography
45 nm 22 nm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
1.0 2.0
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
2.0 3.0
PCI Express Configurations
PCI Express Configurations ‡
1x16 Up to 1x16, 2x8, 1x8+2x4

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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