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Intel

Core2 Quad Q9400

▲ 5895 ▼

4 Cores, @2.66 GHz, Yorkfield.
Release date ≤ Q4 2013.

VS

Average Bench: 34.3% (586th of 1122)

Based on 9,174 user benchmarks.  Devices: BFEBFBFF0001067A, 0FABFBFF0001067A Model: Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz
Poor: 25%Average: 34.3% Great: 43%
Gaming
Gaming 34%
Sail boat
Desktop
Desktop 34%
Sail boat
Workstation
Workstation 21%
Surfboard

Popular builds with this CPU

Poor average bench

The Intel Core2 Quad Q9400 averaged 65.6% 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

Quad Core Integer Speed 239Pts
Single Core Integer Speed 64.2Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core2 Quad Q9400 is just 18.2%. This is a relatively narrow range which indicates that the Intel Core2 Quad Q9400 performs reasonably consistently under varying real world conditions.

Weaknesses

Multi Core Floating Point Speed 145Pts
Avg. Multi Core Mixed Speed 182Pts
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Average Bench

(Based on 9,174 samples)
Rank 58634.3%
Min Avg Max
50 SC Int 64.2 78.7
28.8 SC Float 37.7 46.1
37.4 SC Mixed 47.7 58.2
39.9% 49.9 Pts
Min Avg Max
157 QC Int 239 307
91.3 QC Float 141 181
114 QC Mixed 177 228
42.3% 186 Pts
Min Avg Max
171 MC Int 247 312
104 MC Float 145 182
134 MC Mixed 182 228
29.1% 191 Pts
User Benchmarks Bench Single core Quad core Multi core
The fastest CPU (mainstream) averages a speed of 100%
LGA775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
36.6% Below average
SC Int 69.3
SC Float 41.3
SC Mixed 52
43% 54.2 Pts
QC Int 203
QC Float 143
QC Mixed 187
40% 178 Pts
MC Int 261
MC Float 150
MC Mixed 190
30% 200 Pts
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
36.2% Below average
SC Int 64.3
SC Float 37.9
SC Mixed 47.7
40% 50 Pts
QC Int 253
QC Float 146
QC Mixed 191
45% 197 Pts
MC Int 263
MC Float 152
MC Mixed 194
31% 203 Pts
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
35.5% Below average
SC Int 65.6
SC Float 38.3
SC Mixed 48.1
41% 50.7 Pts
QC Int 253
QC Float 147
QC Mixed 187
44% 195 Pts
MC Int 253
MC Float 148
MC Mixed 172
29% 191 Pts
J3E1, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
35.4% Below average
SC Int 64.1
SC Float 38.2
SC Mixed 47.7
40% 50 Pts
QC Int 248
QC Float 146
QC Mixed 186
44% 193 Pts
MC Int 251
MC Float 152
MC Mixed 188
30% 197 Pts
CPU, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
34.8% Below average
SC Int 59.7
SC Float 35.3
SC Mixed 42.5
37% 45.8 Pts
QC Int 250
QC Float 151
QC Mixed 190
45% 197 Pts
MC Int 246
MC Float 151
MC Mixed 188
30% 195 Pts
CPU, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
33.6% Below average
SC Int 63.6
SC Float 38
SC Mixed 47.4
40% 49.7 Pts
QC Int 216
QC Float 129
QC Mixed 173
39% 172 Pts
MC Int 234
MC Float 136
MC Mixed 165
27% 178 Pts
CPU 1, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
33% Below average
SC Int 59.8
SC Float 37.4
SC Mixed 45.8
38% 47.7 Pts
QC Int 208
QC Float 118
QC Mixed 170
38% 165 Pts
MC Int 175
MC Float 142
MC Mixed 178
25% 165 Pts
9,174 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 10,301,358 CPUs tested.

 Prices

AmazonUS $1502 mins
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Typical Core2 Quad Q9400 Builds (Compare 3,708 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 31%
Sail boat
Workstation
Workstation 16%
Surfboard

Motherboard: Dell OptiPlex 780

CPU
Core2 Quad Q9400Intel  $150Bench 34%, 9,174 samples266x
GPU
Q45/Q43 Express ChipsetIntelBench 1%, 9,699 samples1,561x
4 Series Internal ChipsetIntelBench 1%, 728 samples318x
GeForce GT 710NvidiaBench 5%, 15,409 samples132x
SSD
SSDNow V300 120GBKingston  $65Bench 53%, 126,105 samples57x
850 Evo 250GBSamsung  $95Bench 105%, 299,014 samples35x
SSDNow UV400 120GBKingston  $39Bench 67%, 21,420 samples32x
RAM
2x2GBUnknownBench 21%, 159,712 samples1,290x
4x2GBUnknownBench 26%, 67,162 samples805x
2x4GBUnknownBench 39%, 133,592 samples215x
EDIT WITH CUSTOM PC BUILDER Value: 43% - Average Total price: $215

Popular Core2 Quad Q9400 compatible motherboards:

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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 Quad Processor Q9400 (6M Cache, 2.66 GHz, 1333 MHz FSB)
Code NameYorkfield
Launch DateQ3'08
Processor NumberQ9400
# of Cores4
Cache6 MB L2
Instruction Set64-bit
Embedded Options AvailableYes
Lithography45 nm
VID Voltage Range0.8500V-1.3625V
Recommended Price$180.00 - $200.00
Clock Speed2.66 GHz
Bus Speed1333 MHz FSB
Max TDP95 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 Size164 mm2
# of Processing Die Transistors456 million

Platform Protection

Execute Disable BitYes
Trusted Execution TechYes

 Comments

Added n/a ago.
USA-User
Avatar level
4,098

Disliked (edit your comment) Add link

2 months ago.

CAN-User
Avatar level
2,272

Good

6 months ago.

https://www.youtube.com/watch?v=IqaVRshEIeA&t=12s 3.76Ghz Overclock benchmarks paired with GTX 660 Ti

IND-User
Avatar level
1,950

Excellent

2 months ago.

Good processor

ZAF-User
Avatar level
1,204

Good

3 months ago.

Iv used the core 2 qaud q9400 for a good time from 2017 and its still going good

tAnK
Avatar level
8

Good

8 months ago.

Considering its age, it performs quite well in recent games

Your
opinion?
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Ready to retire
Age: 4 years

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 Frequently Asked Questions

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What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
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What is the GeekBench single core score?
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What is overclocking?
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Intel Core i5-8600K $249AMD RX 480 $280Samsung 850 Pro 256GB $163
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