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IntelBX80557E6550
IntelBX80646I74790K
$348
▲ 511,923 ▼

2 Cores, 2 Threads @2.33GHz, Core.
Release date: Q3 2007.

VS
▲ 8841,572 ▼
 $348 

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

Effective Speed 
+111%
Real World Speed
Performance profile from 467,095 user samples
Benchmark your CPU here
11,349 User Benchmarks
Best Bench: 43% Base clock 2.35 GHz
Worst Bench: 26% Base clock 2.35 GHz, turbo 2.3 GHz (avg)
Poor: 26% Great: 43%
SPEED RANK: 1133rd / 1441
Gaming
Gaming 37%
Jet ski
Desktop
Desktop 41%
Speed boat
Workstation
Workstation 24%
Surfboard
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 / 1441
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed 		37.4 % 78.9 % Hugely faster effective speed.
+111%
Average Score 
+447%
Memory
Avg. Memory Latency 		66.3 Pts 88.1 Pts Much lower memory latency.
+33%
1-Core
Avg. Single Core Speed 		27.5 Pts 114 Pts Hugely faster single-core speed.
+315%
2-Core
Avg. Dual Core Speed 		51.7 Pts 216 Pts Hugely faster dual-core speed.
+318%
4-Core
Avg. Quad Core Speed 		52.7 Pts 378 Pts Hugely faster quad-core speed.
+617%
8-Core
Avg. Octa Core Speed 		53.1 Pts 560 Pts Hugely faster octa-core speed.
+955%
Overclocked Score 
+450%
Memory
OC Memory Latency 		75.9 Pts 96.8 Pts Lower OC memory latency.
+28%
1-Core
OC Single Core Speed 		30.2 Pts 128 Pts Hugely faster OC single-core speed.
+324%
2-Core
OC Dual Core Speed 		60.2 Pts 248 Pts Hugely faster OC dual-core speed.
+312%
4-Core
OC Quad Core Speed 		60.1 Pts 433 Pts Hugely faster OC quad-core speed.
+620%
8-Core
OC Octa Core Speed 		60.3 Pts 643 Pts Hugely faster OC octa-core speed.
+966%
Value & Sentiment 
+∞%
Market Share
Based on 67,707,261 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.46 % Insanely higher market share.
+∞%
Value
Value For Money 		83.1 % Better value.
+12% 		74.2 %
User Rating
UBM User Rating 		51 % 88 % Much more popular.
+73%
Price
Price (score) 		$15 Hugely cheaper.
+96% 		$348
Nice To Haves 
+289%
Age
Newest 		199 Months 118 Months Much more recent.
+41%
TDP
Thermal Design Power (TDP) 		65 Watts More energy efficient.
+26% 		88 Watts
Cores
CPU Processing Cores 		2 cores 4 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads 		2 threads 8 threads Hugely higher thread count.
+300%
Lithography
Manufacturing process 		65 nm 22 nm Much newer manufacturing.
+66%
Base Clock
Base Clock Speed 		2.33 GHz 4 GHz Much faster base frequency.
+72%
Turbo Clock
Turbo Clock Speed 		2.33 GHz 4.4 GHz Hugely faster turbo frequency.
+89%
64-Core
OC Multi Core Speed 		60.3 Pts 654 Pts Hugely faster OC 64-core speed.
+985%
64-Core
Avg. Multi Core Speed 		53.4 Pts 573 Pts Hugely faster 64-core speed.
+973%
Specifications 
Series
CPU Architecture 		Core Haswell
Socket
Motherboard Socket 		LGA775 FCLGA1150
Graphics
Integrated Graphics 		None HD 4600
Launch Date
Launch Date 		Q3'07 Q2'14
Cache
Cache 		4 MB L2 8 MB SmartCache
Lithography
Lithography 		65 nm 22 nm
Recommended Price
Recommended Customer Price 		N/A $339.00 - $350.00
Bus Speed
Bus Speed 		1333 MHz FSB 5 GT/s DMI2
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		No Yes
AES New Instructions
Intel® AES New Instructions 		No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No

More specs » More specs »
Conclusion 
Average Bench 37.4%
Average Bench 78.9%
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The Intel Core2 Duo E6550 is nearly six years old, the equivalent of around 3 processor lifetimes. This great grand daddy of a processor has been included in the group test as a reference. Intel's Core2 Duo range were hugely successful processors and shipped in over 20 different flavours. In terms of real world performance, with a Passmark-S score of 712 points, the E6550 is less than half as fast as the top of the range i7-3770K Ivy Bridge processor. In recent years emphasis has shifted towards server orientated workloads and on that front the i7-3770K offers over six times more processing throughput. [Feb '12 CPUPro]

MORE DETAILS

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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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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

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
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

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