Today's hottest deals
Intel
Intel
  

8 Cores, 16 Threads @2.40 GHz, 45 W.
Release date ≈ Q1 2020.

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

Real World Speed
Performance profile from 76,317 user samples
7,777 User Benchmarks
Best Bench: 96% Base clock 3.1 GHz, turbo 4.5 GHz (avg)
Worst Bench: 64% Base clock 3.1 GHz, turbo 0.75 GHz (avg)
Poor: 64% Great: 96%
SPEED RANK: 208th / 1468
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 80%
Battleship
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
Effective Speed
Effective CPU Speed
84.4 % Hugely faster effective speed.
+109%
40.3 %
Memory
Avg. Memory Latency
85.5 Pts Lower memory latency.
+26%
67.9 Pts
1-Core
Avg. Single Core Speed
127 Pts Hugely faster single-core speed.
+208%
41.2 Pts
2-Core
Avg. Dual Core Speed
241 Pts Hugely faster dual-core speed.
+227%
73.8 Pts
4-Core
Avg. Quad Core Speed
448 Pts Hugely faster quad-core speed.
+483%
76.9 Pts
8-Core
Avg. Octa Core Speed
760 Pts Hugely faster octa-core speed.
+873%
78.1 Pts
Memory
OC Memory Latency
94.8 Pts Lower OC memory latency.
+20%
78.9 Pts
1-Core
OC Single Core Speed
147 Pts Hugely faster OC single-core speed.
+206%
48.1 Pts
2-Core
OC Dual Core Speed
287 Pts Hugely faster OC dual-core speed.
+201%
95.5 Pts
4-Core
OC Quad Core Speed
537 Pts Hugely faster OC quad-core speed.
+463%
95.4 Pts
8-Core
OC Octa Core Speed
940 Pts Hugely faster OC octa-core speed.
+885%
95.4 Pts
Market Share
Based on 69,001,153 CPUs tested
Market Share
Market Share (trailing 30 days)
0.03 % Hugely higher market share.
+200%
0.01 %
User Rating
UBM User Rating
53 % 53 %
Age
Newest
56+ Months Much more recent.
+72%
202 Months
64-Core
OC Multi Core Speed
1,399 Pts Insanely faster OC 64-core speed.
+1,366%
95.4 Pts
64-Core
Avg. Multi Core Speed
1,098 Pts Insanely faster 64-core speed.
+1,308%
78 Pts
Launch Date
Launch Date
Q2'20 Q1'08
Cache
Cache
16 MB Intel® Smart Cache 6 MB L2
Embedded Options Available
Embedded Options Available
No Yes
Lithography
Lithography
14 nm 45 nm
Bus Speed
Bus Speed
8 GT/s 1333 MHz FSB
Package Size
Package Size
42mm x 28mm 37.5mm x 37.5mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
AES New Instructions
Intel® AES New Instructions
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes

More specs » More specs »

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

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

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

 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 $159Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $84
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback