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Intel

Core2 Quad Q9400

▲ 62156 ▼

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

VS

Average Bench: 34.5% (613th of 1159)

Based on 11,733 user benchmarks.  Devices: BFEBFBFF0001067A, 0FABFBFF0001067A Model: Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz
Poor: 26%Average: 34.5% Great: 41%
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 65.5% 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 241Pts
Single Core Integer Speed 64Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core2 Quad Q9400 is just 14.9%. 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 183Pts
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Average Bench

(Based on 11,733 samples)
Rank 61334.5%
Min Avg Max
51.3 SC Int 64 77.3
31.6 SC Float 37.7 44.4
39.5 SC Mixed 47.5 57.3
39.8% 49.7 Pts
Min Avg Max
154 QC Int 241 292
95.4 QC Float 142 172
123 QC Mixed 179 216
42.6% 187 Pts
Min Avg Max
184 MC Int 247 297
105 MC Float 145 174
134 MC Mixed 183 219
29.1% 192 Pts
User Benchmarks Bench Single core Quad core Multi core
The fastest CPU (mainstream) averages a speed of 100%
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 3.2 GHz, turbo 3 GHz (avg)
43.5% Average
SC Int 78.4
SC Float 40.6
SC Mixed 58
47% 59 Pts
QC Int 305
QC Float 178
QC Mixed 229
54% 237 Pts
MC Int 312
MC Float 180
MC Mixed 228
36% 240 Pts
LGA775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
36.1% Below average
SC Int 66
SC Float 38.4
SC Mixed 49
41% 51.1 Pts
QC Int 263
QC Float 154
QC Mixed 188
46% 202 Pts
MC Int 265
MC Float 155
MC Mixed 194
31% 205 Pts
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
36.1% Below average
SC Int 65.4
SC Float 38
SC Mixed 48.6
41% 50.7 Pts
QC Int 259
QC Float 150
QC Mixed 189
46% 199 Pts
MC Int 260
MC Float 151
MC Mixed 191
31% 201 Pts
CPU, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
35% Below average
SC Int 64.9
SC Float 38
SC Mixed 48.2
40% 50.4 Pts
QC Int 260
QC Float 153
QC Mixed 180
45% 198 Pts
MC Int 260
MC Float 152
MC Mixed 191
30% 201 Pts
CPU 1, 1 CPU, 4 cores, 4 threads
Base clock 2.85 GHz
32.2% Below average
SC Int 56.8
SC Float 32.1
SC Mixed 44.8
36% 44.6 Pts
QC Int 221
QC Float 136
QC Mixed 167
40% 175 Pts
MC Int 234
MC Float 130
MC Mixed 162
27% 175 Pts
CPU, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
31.2% Below average
SC Int 61
SC Float 37.2
SC Mixed 48.2
39% 48.8 Pts
QC Int 206
QC Float 123
QC Mixed 152
36% 160 Pts
MC Int 232
MC Float 132
MC Mixed 174
27% 179 Pts
CPU 1, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
29.1% Poor
SC Int 61.6
SC Float 33.1
SC Mixed 45.6
38% 46.8 Pts
QC Int 177
QC Float 116
QC Mixed 142
33% 145 Pts
MC Int 184
MC Float 107
MC Mixed 145
22% 145 Pts
LGA775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
26.4% Poor
SC Int 47.4
SC Float 28.7
SC Mixed 36.1
30% 37.4 Pts
QC Int 186
QC Float 109
QC Mixed 137
33% 144 Pts
MC Int 185
MC Float 109
MC Mixed 140
22% 145 Pts
11,733 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,944,887 CPUs tested.

 Prices

AmazonUS $17032 mins
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Typical Core2 Quad Q9400 Builds (Compare 5,573 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  $170Bench 34%, 11,733 samples414x
GPU
Q45/Q43 Express ChipsetIntelBench 1%, 17,637 samples2,345x
4 Series Internal ChipsetIntelBench 1%, 1,042 samples413x
GeForce GT 710NvidiaBench 5%, 44,218 samples267x
SSD
SSDNow V300 120GBKingston  $45Bench 54%, 178,215 samples65x
A400 120GBKingston  $20Bench 58%, 44,450 samples46x
850 Evo 250GBSamsung  $104Bench 105%, 463,404 samples44x
RAM
2x2GBUnknownBench 21%, 231,213 samples1,813x
4x2GBUnknownBench 25%, 98,920 samples1,201x
2x4GBUnknownBench 40%, 211,594 samples337x
EDIT WITH CUSTOM PC BUILDER Value: 45% - Average Total price: $215

Popular Core2 Quad Q9400 compatible motherboards:

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Processor Rankings (Price vs Performance) June 2019 CPU Rankings.

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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
5,302

Good (edit your comment) Add link

2 months ago.

Still use it in a system I built in 2014, and with full RAM and a good GPU still holds up well.

CAN-User
Avatar level
2,882

Good

4 months ago.

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

ZAF-User
Avatar level
1,526

Good

14 months ago.

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

LTU-User
Avatar level
1,426

Excellent

4 months ago.

Good old times when intel actually was making good cpus

tAnK
Avatar level
8

Good

18 months ago.

Considering its age, it performs quite well in recent games

laserad
Avatar level
4

Good

1 month ago.

An overclocked 2008 CPU that could match the performance of a 4th gen Core i3...

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 Frequently Asked Questions

Processors FAQ
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
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What is multi core integer speed?
What is multi core floating point speed?
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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?
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