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Intel
IntelBX80646I74790K
$348
  

4 Cores, 8 Threads @3.06 GHz, Westmere EP.
Release date ≈ Q1 2015.

 $348 

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

Real World Speed
Performance profile from 456,111 user samples
365 User Benchmarks
Best Bench: 76% Base clock 4.3 GHz, turbo 4.3 GHz (avg)
Worst Bench: 64% Base clock 3.05 GHz, turbo 3.2 GHz (avg)
Poor: 64% Great: 76%
SPEED RANK: 405th / 1468
Gaming
Gaming 71%
Battleship
Desktop
Desktop 74%
Battleship
Workstation
Workstation 54%
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: 270th / 1468
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed
70.8 % 78.9 % Faster effective speed.
+12%
Memory
Avg. Memory Latency
90.5 Pts +3% 88.1 Pts
1-Core
Avg. Single Core Speed
79.8 Pts 114 Pts Much faster single-core speed.
+43%
2-Core
Avg. Dual Core Speed
158 Pts 216 Pts Much faster dual-core speed.
+37%
4-Core
Avg. Quad Core Speed
286 Pts 378 Pts Much faster quad-core speed.
+32%
8-Core
Avg. Octa Core Speed
362 Pts 560 Pts Much faster octa-core speed.
+55%
Memory
OC Memory Latency
94.4 Pts 96.8 Pts +3%
1-Core
OC Single Core Speed
86.7 Pts 128 Pts Much faster OC single-core speed.
+48%
2-Core
OC Dual Core Speed
172 Pts 248 Pts Much faster OC dual-core speed.
+44%
4-Core
OC Quad Core Speed
335 Pts 433 Pts Faster OC quad-core speed.
+29%
8-Core
OC Octa Core Speed
422 Pts 643 Pts Much faster OC octa-core speed.
+52%
Market Share
Based on 69,003,516 CPUs tested
Market Share
Market Share (trailing 30 days)
0 % 0.7 % Insanely higher market share.
+∞%
User Rating
UBM User Rating
50 % 88 % Much more popular.
+76%
Age
Newest
117+ Months Slightly more recent.
+6%
125 Months
64-Core
OC Multi Core Speed
423 Pts 654 Pts Much faster OC 64-core speed.
+55%
64-Core
Avg. Multi Core Speed
364 Pts 573 Pts Much faster 64-core speed.
+57%
Launch Date
Launch Date
Q1'10 Q2'14
Cache
Cache
12 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
32 nm 22 nm
Recommended Price
Recommended Customer Price
$1440.00 $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency
3.46 GHz 4.4 GHz
Bus Speed
Bus Speed
6.4 GT/s QPI 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type)
288 GB 32 GB
Memory Types
Memory Types
DDR3 800/1066/1333 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Channels
Max # of Memory Channels
3 2
Memory Bandwidth
Max Memory Bandwidth
32 GB/s 25.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Package Size
Package Size
42.5mm X 45mm 37.5mm x 37.5mm
Max CPU Configuration
Max CPU Configuration
2 1
Thermal Monitoring Technologies
Thermal Monitoring Technologies
No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
1.0 2.0
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

More specs » More specs »

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

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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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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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