IntelHE8067702740013
IntelBX80646I74790K
$348
  

2 Cores, 4 Threads @1.50 GHz, Kaby Lake.
Release date ≈ Q3 2017.

 $348 

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

Real World Speed
Performance profile from 455,812 user samples
66 User Benchmarks
Best Bench: 45% Base clock 1.5 GHz, turbo 1.5 GHz (avg)
Worst Bench: 27% Base clock 1.5 GHz, turbo 1.5 GHz (avg)
Poor: 27% Great: 45%
SPEED RANK: 1101st / 1442
Gaming
Gaming 39%
Jet ski
Desktop
Desktop 43%
Speed boat
Workstation
Workstation 27%
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
38.9 % 78.9 % Hugely faster effective speed.
+103%
Memory
Avg. Memory Latency
58.7 Pts 88.1 Pts Much lower memory latency.
+50%
1-Core
Avg. Single Core Speed
42.1 Pts 114 Pts Hugely faster single-core speed.
+171%
2-Core
Avg. Dual Core Speed
74.8 Pts 216 Pts Hugely faster dual-core speed.
+189%
4-Core
Avg. Quad Core Speed
112 Pts 378 Pts Hugely faster quad-core speed.
+238%
8-Core
Avg. Octa Core Speed
117 Pts 560 Pts Hugely faster octa-core speed.
+379%
Memory
OC Memory Latency
69.1 Pts 96.8 Pts Much lower OC memory latency.
+40%
1-Core
OC Single Core Speed
47.5 Pts 128 Pts Hugely faster OC single-core speed.
+169%
2-Core
OC Dual Core Speed
87.5 Pts 248 Pts Hugely faster OC dual-core speed.
+183%
4-Core
OC Quad Core Speed
131 Pts 433 Pts Hugely faster OC quad-core speed.
+231%
8-Core
OC Octa Core Speed
132 Pts 643 Pts Hugely faster OC octa-core speed.
+387%
Market Share
Based on 67,720,749 CPUs tested
Market Share
Market Share (trailing 30 days)
0 % 0.56 % Insanely higher market share.
+∞%
User Rating
UBM User Rating
50 % 88 % Much more popular.
+76%
Age
Newest
80+ Months Much more recent.
+32%
118 Months
64-Core
OC Multi Core Speed
131 Pts 654 Pts Hugely faster OC 64-core speed.
+399%
64-Core
Avg. Multi Core Speed
118 Pts 573 Pts Hugely faster 64-core speed.
+386%
Launch Date
Launch Date
Q1'17 Q2'14
Cache
Cache
2 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
N/A $339.00 - $350.00
Bus Speed
Bus Speed
4 GT/s OPI 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type)
16 GB 32 GB
Memory Types
Memory Types
LPDDR3-1866, DDR3L-1600 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
29.8 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 615 Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
300.00 MHz 350 MHz
Graphics Output
Graphics Output
eDP/DP/HDMI/DVI eDP/DP/HDMI/DVI/VGA
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
850.00 MHz 1.25 GHz
Graphics Video Max Memory
Graphics Video Max Memory
16 GB 2 GB
Package Size
Package Size
20mm X 16.5mm 37.5mm x 37.5mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
No 2.0
PCI Express Configurations
PCI Express Configurations ‡
1x4, 2x2, 1x2+2x1 and 4x1 Up to 1x16, 2x8, 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
10 16

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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Welcome to our 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 value for money upgrades.

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