IntelBX80646I74790K
$348
IntelBX80658i55675C
 $348 

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

4 Cores, 4 Threads @3.1 GHz, Broadwell.
Release date ≈ Q3 2015.

Real World Speed
Performance profile from 456,691 user samples
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
945 User Benchmarks
Best Bench: 91% Base clock 3.1 GHz, turbo 4.2 GHz (avg)
Worst Bench: 68% Base clock 3.1 GHz, turbo 3.1 GHz (avg)
Poor: 68% Great: 91%
SPEED RANK: 217th / 1442
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 62%
Destroyer
Effective Speed
Effective CPU Speed
78.9 % 81.5 % +3%
Memory
Avg. Memory Latency
88.1 Pts 89.6 Pts +2%
1-Core
Avg. Single Core Speed
114 Pts +1% 113 Pts
2-Core
Avg. Dual Core Speed
216 Pts 222 Pts +3%
4-Core
Avg. Quad Core Speed
378 Pts 423 Pts Faster quad-core speed.
+12%
8-Core
Avg. Octa Core Speed
560 Pts Faster octa-core speed.
+30%
431 Pts
Memory
OC Memory Latency
96.8 Pts 99.2 Pts +2%
1-Core
OC Single Core Speed
128 Pts 131 Pts +2%
2-Core
OC Dual Core Speed
248 Pts 260 Pts +5%
4-Core
OC Quad Core Speed
433 Pts 510 Pts Faster OC quad-core speed.
+18%
8-Core
OC Octa Core Speed
643 Pts Faster OC octa-core speed.
+26%
511 Pts
Market Share
Based on 67,750,180 CPUs tested
Market Share
Market Share (trailing 30 days)
0.55 % Insanely higher market share.
+∞%
0 %
Value
Value For Money
74.2 % 80.6 % Slightly better value.
+9%
User Rating
UBM User Rating
88 % Much more popular.
+76%
50 %
Price
Price (score)
$348 $289 Cheaper.
+17%
Age
Newest
118 Months 105+ Months More recent.
+11%
64-Core
OC Multi Core Speed
654 Pts Faster OC 64-core speed.
+29%
507 Pts
64-Core
Avg. Multi Core Speed
573 Pts Much faster 64-core speed.
+32%
433 Pts
Launch Date
Launch Date
Q2'14 Q2'15
Cache
Cache
8 MB SmartCache 4 MB
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $276.00 - $277.00
Max Turbo Frequency
Max Turbo Frequency
4.4 GHz 3.6 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2013D PCA 2013D
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR3L-1333/1600 @ 1.5V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 Intel® Iris™ Pro Graphics 6200
Graphics Base Frequency
Graphics Base Frequency
350 MHz 300 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.25 GHz 1.1 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 32 GB
Graphics and IMC Lithography
Graphics and IMC Lithography
22 nm 14 nm
TSX-NI
Intel® TSX-NI
No Yes

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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 raw CPU tests don't reflect its performance with games, specially, thanks to its rare gem of an 128MB L4 cache, [Nov '19 Maringaense]

MORE DETAILS

Processor Rankings (Price vs Performance) April 2024 CPU Rankings

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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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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 Frequently Asked Questions

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