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Intel

Core2 Quad Q9400

▲ 5785 ▼

4 Cores,
@2.66 GHz Yorkfield

VS

Average Bench: 34.7% (570th of 1110)

Based on 8,392 user benchmarks.  Devices: BFEBFBFF0001067A, 0FABFBFF0001067A Model: Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz
Poor: 26%Average: 34.7% Great: 42%
Gaming
Gaming 35%
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 65.3% 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 243Pts
Single Core Integer Speed 64.3Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core2 Quad Q9400 is just 16.2%. 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 146Pts
Avg. Multi Core Mixed Speed 184Pts
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Average Bench

(Based on 8,392 samples)
Rank 57034.7%
Min Avg Max
52.5 SC Int 64.3 77.6
31.1 SC Float 37.7 45.7
39.2 SC Mixed 47.7 57.5
40% 49.9 Pts
Min Avg Max
163 QC Int 243 307
96.7 QC Float 143 177
125 QC Mixed 180 225
43% 189 Pts
Min Avg Max
185 MC Int 249 306
111 MC Float 146 180
142 MC Mixed 184 227
29.3% 193 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
36.6% Below average
SC Int 65.2
SC Float 38.6
SC Mixed 48.3
41% 50.7 Pts
QC Int 262
QC Float 153
QC Mixed 193
46% 203 Pts
MC Int 263
MC Float 154
MC Mixed 196
31% 204 Pts
LGA775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
36.2% Below average
SC Int 65.2
SC Float 38.5
SC Mixed 48.5
41% 50.7 Pts
QC Int 256
QC Float 152
QC Mixed 190
45% 199 Pts
MC Int 258
MC Float 149
MC Mixed 190
30% 199 Pts
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
35.7% Below average
SC Int 65.5
SC Float 38.5
SC Mixed 47
40% 50.3 Pts
QC Int 255
QC Float 150
QC Mixed 189
45% 198 Pts
MC Int 255
MC Float 147
MC Mixed 190
30% 197 Pts
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
35.5% Below average
SC Int 65.4
SC Float 38.4
SC Mixed 46.3
40% 50 Pts
QC Int 251
QC Float 148
QC Mixed 189
45% 196 Pts
MC Int 252
MC Float 152
MC Mixed 188
30% 197 Pts
CPU 1, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
34.8% Below average
SC Int 61.7
SC Float 36.8
SC Mixed 46.5
39% 48.3 Pts
QC Int 249
QC Float 146
QC Mixed 183
44% 193 Pts
MC Int 245
MC Float 146
MC Mixed 183
29% 192 Pts
CPU, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
34.1% Below average
SC Int 63.2
SC Float 35.2
SC Mixed 44.6
38% 47.7 Pts
QC Int 228
QC Float 141
QC Mixed 184
42% 185 Pts
MC Int 177
MC Float 123
MC Mixed 146
22% 149 Pts
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
33.8% Below average
SC Int 65
SC Float 33.5
SC Mixed 44.5
38% 47.7 Pts
QC Int 201
QC Float 151
QC Mixed 178
40% 176 Pts
MC Int 235
MC Float 148
MC Mixed 188
29% 190 Pts
CPU 1, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
32.6% Below average
SC Int 64.1
SC Float 38.1
SC Mixed 48.3
40% 50.2 Pts
QC Int 245
QC Float 141
QC Mixed 161
42% 182 Pts
MC Int 237
MC Float 141
MC Mixed 188
29% 188 Pts
CPUSocket, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
23.4% Poor
SC Int 44.8
SC Float 26.9
SC Mixed 35.9
29% 35.9 Pts
QC Int 117
QC Float 92.5
QC Mixed 110
24% 106 Pts
MC Int 210
MC Float 127
MC Mixed 166
26% 168 Pts
8,392 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 9,296,501 CPUs tested.

 Prices

AmazonUS $13024 mins
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Typical Core2 Quad Q9400 Builds (Compare 3,319 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  $130Bench 35%, 8,392 samples242x
GPU
Q45/Q43 Express ChipsetIntelBench 1%, 9,893 samples1,422x
4 Series Internal ChipsetIntelBench 1%, 684 samples296x
GeForce GT 710NvidiaBench 5%, 17,015 samples109x
SSD
SSDNow V300 120GBKingston  $55Bench 47%, 124,768 samples51x
850 Evo 250GBSamsung  $104Bench 94%, 310,365 samples34x
SSDNow UV400 120GBKingston  $43Bench 53%, 27,100 samples30x
RAM
2x2GBUnknownBench 21%, 138,171 samples1,169x
4x2GBUnknownBench 24%, 59,895 samples706x
2x4GBUnknownBench 40%, 132,113 samples194x
EDIT WITH CUSTOM PC BUILDER Value: 45% - Average Total price: $185

Popular Core2 Quad Q9400 compatible motherboards:

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Processor Rankings (Price vs Performance) June 2018 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.

 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
3,842

Disliked (edit your comment) Add link

1 day ago.

CAN-User
Avatar level
2,176

Good

4 months ago.

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

IND-User
Avatar level
1,822

Excellent

4 days ago.

Good processor

ZAF-User
Avatar level
1,136

Good

2 month ago.

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

tAnK
Avatar level
8

Good

6 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

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 »

 Best User Rated
The Best.
CPUGPUSSD
AMD Ryzen 5 1600 $175Nvidia GTX 1070 $447Samsung 850 Evo 250GB $104
Intel Core i7-8700K $340Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $117
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $116
HDDRAMUSB
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Seagate Barracuda 2TB (2016) $31HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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