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Intel
IntelBX80662G4400
▲ 534,811 ▼

2 Cores, 2 Threads @3.0GHz, Core.
Release date: Q1 2008.

VS
▲ 534,093 ▼

2 Cores, 2 Threads @3.3GHz, Skylake.
Release date: Q4 2015.

Effective Speed 
+18%
Real World Speed
Performance profile from 104,972 user samples
Benchmark your CPU here
68,540 User Benchmarks
Best Bench: 47% Base clock 3 GHz, turbo 2.95 GHz (avg)
Worst Bench: 24% Base clock 3 GHz, turbo 2.7 GHz (avg)
Poor: 24% Great: 47%
SPEED RANK: 1085th / 1468
Gaming
Gaming 40%
Speed boat
Desktop
Desktop 46%
Yacht
Workstation
Workstation 27%
Raft
36,432 User Benchmarks
Best Bench: 61% Base clock 3.3 GHz, turbo 3.3 GHz (avg)
Worst Bench: 23% Base clock 3.3 GHz, turbo 3.3 GHz (avg)
Poor: 23% Great: 61%
SPEED RANK: 892nd / 1468
Gaming
Gaming 47%
Yacht
Desktop
Desktop 59%
Gunboat
Workstation
Workstation 33%
Sail boat
Effective Speed
Effective CPU Speed 		40.3 % 47.5 % Faster effective speed.
+18%
Average Score 
+79%
Memory
Avg. Memory Latency 		67.9 Pts 69.3 Pts +2%
1-Core
Avg. Single Core Speed 		41.2 Pts 85.3 Pts Hugely faster single-core speed.
+107%
2-Core
Avg. Dual Core Speed 		73.8 Pts 143 Pts Hugely faster dual-core speed.
+94%
4-Core
Avg. Quad Core Speed 		76.9 Pts 150 Pts Hugely faster quad-core speed.
+95%
8-Core
Avg. Octa Core Speed 		78.1 Pts 154 Pts Hugely faster octa-core speed.
+97%
Overclocked Score 
+95%
Memory
OC Memory Latency 		78.9 Pts 90.3 Pts Lower OC memory latency.
+14%
1-Core
OC Single Core Speed 		48.1 Pts 103 Pts Hugely faster OC single-core speed.
+114%
2-Core
OC Dual Core Speed 		95.5 Pts 206 Pts Hugely faster OC dual-core speed.
+116%
4-Core
OC Quad Core Speed 		95.4 Pts 205 Pts Hugely faster OC quad-core speed.
+115%
8-Core
OC Octa Core Speed 		95.4 Pts 205 Pts Hugely faster OC octa-core speed.
+115%
Value & Sentiment 
+79%
Market Share
Based on 69,011,376 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.03 % Hugely higher market share.
+200%
Value
Value For Money 		63.5 % 97.9 % Much better value.
+54%
User Rating
UBM User Rating 		53 % 53 %
Price
Price (score) 		$53 $20 Much cheaper.
+62%
Nice To Haves 
+45%
Age
Newest 		202 Months 109 Months Much more recent.
+46%
TDP
Thermal Design Power (TDP) 		130 Watts 47 Watts Much more energy efficient.
+64%
Cores
CPU Processing Cores 		2 cores 2 cores
Threads
CPU Processing Threads 		2 threads 2 threads
Lithography
Manufacturing process 		45 nm 14 nm Much newer manufacturing.
+69%
Base Clock
Base Clock Speed 		3 GHz 3.3 GHz Slightly faster base frequency.
+10%
Turbo Clock
Turbo Clock Speed 		3 GHz 3.3 GHz Slightly faster turbo frequency.
+10%
64-Core
OC Multi Core Speed 		95.4 Pts 205 Pts Hugely faster OC 64-core speed.
+115%
64-Core
Avg. Multi Core Speed 		78 Pts 152 Pts Hugely faster 64-core speed.
+95%
Specifications 
Series
CPU Architecture 		Core Skylake
Socket
Motherboard Socket 		LGA775 FCLGA1151
Graphics
Integrated Graphics 		None HD 510
Launch Date
Launch Date 		Q1'08 Q3'15
Cache
Cache 		6 MB L2 3 MB SmartCache
Lithography
Lithography 		45 nm 14 nm
Recommended Price
Recommended Customer Price 		$149.00 - $179.00 $64.00
Bus Speed
Bus Speed 		1333 MHz FSB 8 GT/s DMI3
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 40.3%
Average Bench 47.5%

The Intel Core 2 Duo E8400 is amongst the fastest of the Core 2 Duo range of now nearly ten year old CPUs. The E8400 is included in our group tests simply as a reference point due to its huge success back in its day. Running at a clock speed of 3.0 GHz the E8400 has an effective speed of 52 which is 85% slower than its modern day counterparts. The relative lack of performance is especially noticeable in the area of multi-core processing as a consequence of the E8400's relatively few two cores. Anyone considering an upgrade needn't hesitate as modern CPUs are not only orders of magnitude faster but also considerably more energy efficient and feature packed. [Oct '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]

Group Test Results

  • 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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Gaming Desktop ProGaming

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
  • - See speed test results from other users
  • - Compare your components to the current market leaders
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  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

Processors FAQ
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Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
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