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IntelBX80646I74790K
$348
AMDFD832EWMHKBOX
▲ 8841,572 ▼
 $348 

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

VS
▲ 542,882 ▼

8 Cores, 8 Threads @3.2GHz, Piledriver.
Release date: Q3 2014.

Effective Speed 
+37%
Real World Speed
Performance profile from 488,945 user samples
Benchmark your CPU here
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
33,199 User Benchmarks
Best Bench: 65% Base clock 4.4 GHz, turbo 4.35 GHz (avg)
Worst Bench: 47% Base clock 3.2 GHz, turbo 3.3 GHz (avg)
Poor: 47% Great: 65%
SPEED RANK: 616th / 1442
Gaming
Gaming 58%
Gunboat
Desktop
Desktop 60%
Destroyer
Workstation
Workstation 44%
Speed boat
Effective Speed
Effective CPU Speed 		78.9 % Much faster effective speed.
+37% 		57.8 %
Average Score 
+78%
Memory
Avg. Memory Latency 		88.1 Pts Slightly lower memory latency.
+9% 		80.6 Pts
1-Core
Avg. Single Core Speed 		114 Pts Hugely faster single-core speed.
+94% 		58.8 Pts
2-Core
Avg. Dual Core Speed 		216 Pts Hugely faster dual-core speed.
+100% 		108 Pts
4-Core
Avg. Quad Core Speed 		378 Pts Hugely faster quad-core speed.
+98% 		191 Pts
8-Core
Avg. Octa Core Speed 		560 Pts Hugely faster octa-core speed.
+88% 		298 Pts
Overclocked Score 
+66%
Memory
OC Memory Latency 		96.8 Pts Slightly lower OC memory latency.
+6% 		91.4 Pts
1-Core
OC Single Core Speed 		128 Pts Hugely faster OC single-core speed.
+82% 		70.4 Pts
2-Core
OC Dual Core Speed 		248 Pts Hugely faster OC dual-core speed.
+85% 		134 Pts
4-Core
OC Quad Core Speed 		433 Pts Hugely faster OC quad-core speed.
+82% 		238 Pts
8-Core
OC Octa Core Speed 		643 Pts Much faster OC octa-core speed.
+74% 		370 Pts
Value & Sentiment 
+633%
Market Share
Based on 67,713,863 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.53 % Insanely higher market share.
+2,550% 		0.02 %
Value
Value For Money 		74.2 % 79.6 % Slightly better value.
+7%
User Rating
UBM User Rating 		88 % Much more popular.
+63% 		54 %
Price
Price (score) 		$348 $87 Much cheaper.
+75%
Nice To Haves 
+15%
Age
Newest 		118 Months 115 Months +3%
TDP
Thermal Design Power (TDP) 		88 Watts Slightly more energy efficient.
+7% 		95 Watts
Cores
CPU Processing Cores 		4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads 		8 threads 8 threads
Lithography
Manufacturing process 		22 nm Much newer manufacturing.
+31% 		32 nm
Base Clock
Base Clock Speed 		4 GHz Faster base frequency.
+25% 		3.2 GHz
Turbo Clock
Turbo Clock Speed 		4.4 GHz Faster turbo frequency.
+10% 		4 GHz
64-Core
OC Multi Core Speed 		654 Pts Much faster OC 64-core speed.
+73% 		378 Pts
64-Core
Avg. Multi Core Speed 		573 Pts Hugely faster 64-core speed.
+88% 		305 Pts
Specifications 
Series
CPU Architecture 		Haswell Piledriver
Socket
Motherboard Socket 		FCLGA1150 AM3+
Graphics
Integrated Graphics 		HD 4600 None
Conclusion 
Average Bench 78.9%
Average Bench 57.8%
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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 FX-8320E is a Vishera eight core processor based on AMD’s Piledriver architecture. The ‘E’ in the FX-8320E denotes energy efficiency with the FX-8320E boasting a TDP of 95 Watts which is relatively low for FX processors. The FX-8320E was launched in September 2014 at the same time as the FX-8370E. Comparing the 8370E and 8320E shows that the performance profiles are similar with the 25% more expensive 8370E edging ahead, particularly on single core workloads. The 8370E is clocked slightly higher with base/turbo frequencies of 3.3/4.3 GHz versus the 8320E’s 3.2/4.0 GHz. Overall the 8320E scores a mediocre effective speed of 70. Whilst this is sufficient for the majority of desktop applications: web-surfing, word-processing and playing movies, better single-core performance is offered by any number of Intel processors. [Dec '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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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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How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
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  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
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  • - Compare your components to the current market leaders
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  • - Compare your in-game FPS to other users with your hardware

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