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Intel

Core2 Duo E8400

▲ 573,646 ▼

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

VS

Average Bench: 24.1% (810th of 1173)

more Based on 40,016 user benchmarks.  Devices: BFEBFBFF00010676, , BFEBFBFF000006FD, AFEBFBFF00010676, AFEBFBFF0001067A, 00050400000607D0, 1FABFBFF0001067A, 0000000000000000, BFEBFBFF00010677, 0000000FFF800800, BFEFFBFF00010676, BFEBFBFF000006FB, 014D9203BFEBFBFF, 1FEBFBFF0001067A, BFEBFBFF0001067A Model: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz

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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Poor: 16%Average: 24.1% Great: 26%
Gaming
Gaming 24%
Surfboard
Desktop
Desktop 31%
Sail boat
Workstation
Workstation 14%
Tree trunk

Popular builds with this CPU

Very poor average bench

The Intel Core2 Duo E8400 averaged 75.9% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Single Core Integer Speed 68.4Pts
Avg. Single Core Mixed Speed 50.6Pts

Excellent consistency

The range of scores (95th - 5th percentile) for the Intel Core2 Duo E8400 is just 9.94%. This is an extremely narrow range which indicates that the Intel Core2 Duo E8400 performs superbly consistently under varying real world conditions.

Weaknesses

Multi Core Floating Point Speed 78.9Pts
Avg. Multi Core Mixed Speed 99.3Pts
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Average Bench

(Based on 40,016 samples)
Rank 81024.1%
Min Avg Max
46.5 SC Int 68.4 74
28.3 SC Float 40.2 43.2
35.1 SC Mixed 50.6 54.7
42.5% 53.1 Pts
Min Avg Max
80.4 QC Int 131 147
48.8 QC Float 76.7 86.2
62.1 QC Mixed 96.8 109
23.2% 102 Pts
Min Avg Max
92.5 MC Int 135 148
54.7 MC Float 78.9 86.1
67.7 MC Mixed 99.3 109
15.9% 105 Pts
User Benchmarks Bench Single core Quad core Multi core
The fastest CPU (mainstream) averages a speed of 100%
XU1 PROCESSOR, 1 CPU, 2 cores, 2 threads
Base clock 3 GHz
26.1% Poor
SC Int 73.1
SC Float 42.9
SC Mixed 54.1
45% 56.7 Pts
QC Int 146
QC Float 85.8
QC Mixed 106
26% 113 Pts
MC Int 146
MC Float 85.5
MC Mixed 108
17% 113 Pts
XU1 PROCESSOR, 1 CPU, 2 cores, 2 threads
Base clock 3 GHz
25.2% Poor
SC Int 73.2
SC Float 42.4
SC Mixed 53
45% 56.2 Pts
QC Int 131
QC Float 81.7
QC Mixed 101
24% 105 Pts
MC Int 146
MC Float 85.1
MC Mixed 108
17% 113 Pts
XU1 PROCESSOR, 1 CPU, 2 cores, 2 threads
Base clock 3 GHz, turbo 2.8 GHz (avg)
25% Poor
SC Int 69.4
SC Float 42.4
SC Mixed 51.4
44% 54.4 Pts
QC Int 138
QC Float 79.1
QC Mixed 102
24% 106 Pts
MC Int 135
MC Float 80.5
MC Mixed 104
16% 106 Pts
Socket 775, 1 CPU, 2 cores, 2 threads
Base clock 3 GHz, turbo 2.8 GHz (avg)
21.6% Poor
SC Int 66
SC Float 41.7
SC Mixed 51.6
42% 53.1 Pts
QC Int 127
QC Float 64.5
QC Mixed 77.3
20% 89.5 Pts
MC Int 114
MC Float 64.1
MC Mixed 80
13% 85.9 Pts
40,016 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,518,603 CPUs tested.

 Prices

Approx. $150 @ launch in Jan '08
EbayUS $2016 mins
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Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money.

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Typical Core2 Duo E8400 Builds (Compare 5,740 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 30%
Raft
Workstation
Workstation 14%
Tree trunk

Motherboard: Dell OptiPlex 780

CPU
Core2 Duo E8400Intel  $20Bench 24%, 40,016 samples1,656x
GPU
Q45/Q43 Express ChipsetIntelBench 1%, 17,339 samples2,422x
4 Series Internal ChipsetIntelBench 1%, 1,059 samples423x
GeForce GT 710NvidiaBench 5%, 48,360 samples276x
SSD
SSDNow V300 120GBKingston  $45Bench 55%, 181,959 samples65x
A400 120GBKingston  $20Bench 60%, 47,949 samples50x
850 Evo 250GBSamsung  $104Bench 106%, 476,103 samples47x
RAM
2x2GBUnknownBench 21%, 239,260 samples1,861x
4x2GBUnknownBench 25%, 108,056 samples1,241x
2x4GBUnknownBench 39%, 215,416 samples354x
EDIT WITH CUSTOM PC BUILDER Value: 58% - Above average Total price: $65

Popular Core2 Duo E8400 compatible motherboards:

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  • - CPU tests include: integer, floating and string.
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Processor Rankings (Price vs Performance) July 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.

 Specifications

Essentials

DescriptionIntel® Core™2 Duo Processor E8400 (6M Cache, 3.00 GHz, 1333 MHz FSB)
Code NameWolfdale
Launch DateQ1'08
Processor NumberE8400
# of Cores2
Cache6 MB L2
Instruction Set64-bit
Embedded Options AvailableYes
Lithography45 nm
VID Voltage Range0.8500V-1.3625V
Recommended Price$149.00 - $179.00
Clock Speed3 GHz
Bus Speed1333 MHz FSB
Max TDP65 W
FSB ParityNo

Data Protection

AES New InstructionsNo

Advanced Technologies

Virtualization Tech (VT-x)Yes
Intel 64Yes
Idle StatesYes
Enhanced Intel SpeedStep® TechYes
Thermal Monitoring TechnologiesYes
Turbo Boost TechNo
Hyper-Threading TechNo
Virtualization for Directed I/O (VT-d)Yes
Demand Based SwitchingNo

Package

Package Size37.5mm x 37.5mm
Sockets SupportedLGA775
Processing Die Size107 mm2
# of Processing Die Transistors410 million

Platform Protection

Execute Disable BitYes
Trusted Execution TechYes

 Comments

CPUPro
Avatar level
1,252

Official site ark.intel.com/...

Legacy Intel® Core™2 Processor...

Added 4 years ago.
USA-User
Avatar level
5,388

Poor (edit your comment) Add link

1 month ago.

This is slow on my laptop and my imac, don't buy.

DEU-User
Avatar level
3,491

Poor

1 month ago.

E8400 + 8GB DDR-2-800 RAM + GTX950/2GB + Intenso SSD = perfekt Linux64bit System !

Info  www.pcgameshardware.de/...

PCGH-Test: Core 2 Duo E8400 - der Wolfdale-Spartipp

GBR-User
Avatar level
3,456

Excellent

23 days ago.

Brilliant little chip, breathed new life into my old e4400 socket 775 system.

CAN-User
Avatar level
2,946

Terrible

11 days ago.

Fast , maybe little lag but its ok

FRA-User
Avatar level
2,861

Excellent

8 months ago.

not extensive powerful for older cpu

AUS-User
Avatar level
2,362

Good

4 days ago.

quick for a budget build, often $5 on ebay and can be added to any 775 system. paired with a 750ti or a hd7770, it makes for a great $50 gaming rig.

CPUPro
Avatar level
1,252

Terrible

4 years ago.

gvrax
Avatar level
360

Terrible

22 months ago.

low perfomance for that price

TheWildShadow55
Avatar level
70

Average

9 months ago.

Not bad for basic use. Don't pair a good GPU with it though, it's just a dual-core after all.

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Speed Comparisons

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1173 Processors (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Processors FAQ
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)?
What is the GeekBench score?
ALL FAQs »

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AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
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WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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