COMPARE
Today's hottest
Amazon Ebay
deals
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
Intel
Intel
▲ 534,812 ▼

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

VS
▲ 5398 ▼

4 Cores, 8 Threads @3.1 GHz, Haswell.
Release date ≤ Q4 2013.

Effective Speed 
+77%
Real World Speed
Performance profile from 81,697 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
13,157 User Benchmarks
Best Bench: 80% Base clock 3.1 GHz
Worst Bench: 59% Base clock 3.1 GHz, turbo 0.8 GHz (avg)
Poor: 59% Great: 80%
SPEED RANK: 397th / 1468
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed 		40.3 % 71.2 % Much faster effective speed.
+77%
Average Score 
+229%
Memory
Avg. Memory Latency 		67.9 Pts 82.9 Pts Lower memory latency.
+22%
1-Core
Avg. Single Core Speed 		41.2 Pts 97.5 Pts Hugely faster single-core speed.
+137%
2-Core
Avg. Dual Core Speed 		73.8 Pts 186 Pts Hugely faster dual-core speed.
+152%
4-Core
Avg. Quad Core Speed 		76.9 Pts 323 Pts Hugely faster quad-core speed.
+320%
8-Core
Avg. Octa Core Speed 		78.1 Pts 478 Pts Hugely faster octa-core speed.
+512%
Overclocked Score 
+209%
Memory
OC Memory Latency 		78.9 Pts 92.8 Pts Lower OC memory latency.
+18%
1-Core
OC Single Core Speed 		48.1 Pts 110 Pts Hugely faster OC single-core speed.
+129%
2-Core
OC Dual Core Speed 		95.5 Pts 215 Pts Hugely faster OC dual-core speed.
+125%
4-Core
OC Quad Core Speed 		95.4 Pts 389 Pts Hugely faster OC quad-core speed.
+308%
8-Core
OC Octa Core Speed 		95.4 Pts 539 Pts Hugely faster OC octa-core speed.
+465%
Value & Sentiment 
+1%
Market Share
Based on 69,033,757 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.02 %
Value
Value For Money 		63.5 % 95.3 % Much better value.
+50%
User Rating
UBM User Rating 		53 % 53 %
Price
Price (score) 		$53 Much cheaper.
+45% 		$96
Nice To Haves 
+341%
Age
Newest 		202 Months 130+ Months Much more recent.
+36%
64-Core
OC Multi Core Speed 		95.4 Pts 540 Pts Hugely faster OC 64-core speed.
+466%
64-Core
Avg. Multi Core Speed 		78 Pts 485 Pts Hugely faster 64-core speed.
+522%
Specifications 
Launch Date
Launch Date 		Q1'08 Q2'13
Cache
Cache 		6 MB L2 8 MB SmartCache
Lithography
Lithography 		45 nm 22 nm
Recommended Price
Recommended Customer Price 		$149.00 - $179.00 $303.00 - $305.00
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

More specs » More specs »
Conclusion 
Average Bench 40.3%
Average Bench 71.2%

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]

MORE DETAILS

User Builds 
68,540
13,157
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Processor Rankings (Price vs Performance) November 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]

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.

UserBenchmark of the month

Gaming Desktop ProGaming

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

 Frequently Asked Questions

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $165Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $130
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $389
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback