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Intel

Core2 Quad Q8400

▲ 54377 ▼

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

Average Bench: 49.5% (808th of 1357)

Based on 16,598 user benchmarks.  Devices: BFEBFBFF0001067A, , 0000000000000000, 00050400000607D0, 1FABFBFF0001067A Model: Intel(R) Core(TM)2 Quad CPU Q8400 @ 2.66GHz
Poor: 37%Average: 49.5% Great: 57%
Gaming
Gaming 50%
Yacht
Desktop
Desktop 51%
Yacht
Workstation
Workstation 36%
Jet ski

Popular builds with this CPU

Below average average bench

The Intel Core2 Quad Q8400 averaged 50.4% 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

Avg. Memory Latency 66.3Pts
Avg. Single Core Mixed Speed 50.9Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core2 Quad Q8400 is just 19.9%. This is a relatively narrow range which indicates that the Intel Core2 Quad Q8400 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Mixed Speed 194Pts
Avg. Octa Core Mixed Speed 193Pts
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Average Bench

(Based on 16,598 samples)
Rank 80849.5%
Min Avg Max
50.1 Memory 66.3 77.5
39.3 1-Core 50.9 58.6
75.5 2-Core 100 116
45.9% 72.5 Pts
Min Avg Max
118 4-Core 191 230
128 8-Core 193 230
26.2% 192 Pts
Min Avg Max
126 64-Core 194 228
13% 194 Pts
User Benchmarks Bench Normal Heavy Server
The fastest CPU (mainstream) averages a speed of 100%
CPU 1, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz
54.2% Above average
Memory 73.7
1-Core 52.7
2-Core 105
49% 77.3 Pts
4-Core 202
8-Core 208
28% 205 Pts
64-Core 207
14% 207 Pts
CPU1, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
51.6% Above average
Memory 70.2
1-Core 52.9
2-Core 88.5
46% 70.5 Pts
4-Core 193
8-Core 191
26% 192 Pts
64-Core 204
14% 204 Pts
Socket 775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
50.7% Above average
Memory 66.5
1-Core 50.4
2-Core 103
46% 73.4 Pts
4-Core 204
8-Core 203
28% 203 Pts
64-Core 205
14% 205 Pts
CPU1, 1 CPU, 4 cores, 4 threads
Base clock 3.35 GHz, turbo 3.2 GHz (avg)
50.5% Above average
Memory 55.7
1-Core 66.7
2-Core 130
50% 84.2 Pts
4-Core 262
8-Core 261
36% 262 Pts
64-Core 262
18% 262 Pts
LGA775, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
46.3% Average
Memory 57
1-Core 53
2-Core 105
44% 71.7 Pts
4-Core 206
8-Core 208
28% 207 Pts
64-Core 195
13% 195 Pts
XU1 PROCESSOR, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
45.7% Average
Memory 55.3
1-Core 52.5
2-Core 105
43% 71 Pts
4-Core 210
8-Core 207
28% 208 Pts
64-Core 212
14% 212 Pts
CPU, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
44.6% Average
Memory 56.7
1-Core 50.5
2-Core 97
42% 68.1 Pts
4-Core 188
8-Core 193
26% 191 Pts
64-Core 191
13% 191 Pts
CPU, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.65 GHz (avg)
42.3% Average
Memory 48.1
1-Core 52.9
2-Core 105
41% 68.6 Pts
4-Core 211
8-Core 210
29% 210 Pts
64-Core 124
8% 124 Pts
XU1 PROCESSOR, 1 CPU, 4 cores, 4 threads
Base clock 2.65 GHz, turbo 2.5 GHz (avg)
28% Poor
Memory 29.5
1-Core 45.1
2-Core 100
32% 58.2 Pts
4-Core 155
8-Core 148
21% 152 Pts
64-Core 179
12% 179 Pts
16,598 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 53,612,350 CPUs tested.

 Prices

AmazonUS $10017 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 Quad Q8400 Builds (Compare 4,289 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 4%
Tree trunk
Desktop
Desktop 45%
Speed boat
Workstation
Workstation 4%
Tree trunk

Motherboard: Dell OptiPlex 780

CPU
Core2 Quad Q8400Intel  $100Bench 50%, 16,598 samples1x
GPU
Q45/Q43 Express ChipsetIntelBench 1%, 14,341 samples1,478x
GeForce GT 710NvidiaBench 3%, 176,277 samples335x
GT 1030NvidiaBench 14%, 172,902 samples166x
SSD
A400 240GBKingston  $29Bench 68%, 368,669 samples111x
A400 120GBKingston  $25Bench 58%, 157,829 samples62x
SSDNow V300 120GBKingston  $39Bench 53%, 324,585 samples30x
RAM
4x2GBUnknownBench 25%, 175,410 samples1,148x
2x2GBUnknownBench 19%, 443,674 samples1,028x
4x4GBUnknownBench 43%, 103,464 samples232x
EDIT WITH CUSTOM PC BUILDER Value: 56% - Above average Total price: $129

Popular Core2 Quad Q8400 compatible motherboards:

How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware 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 upgrades.

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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.
Processor Rankings (Price vs Performance) July 2022 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]

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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 Q8400 (4M Cache, 2.66 GHz, 1333 MHz FSB)
Code NameYorkfield
Launch DateQ2'09
Processor NumberQ8400
# of Cores4
Cache4 MB L2
Instruction Set64-bit
Embedded Options AvailableNo
Lithography45 nm
VID Voltage Range0.8500V-1.3625V
Recommended Price$179.00
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
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 TechNo

 Comments

Added n/a ago.
USA-User
Avatar level
8,768

Liked (edit your comment) Add link

4 months ago.

CAN-User
Avatar level
4,488

Excellent

6 months ago.

This very old CPU is still more than enough to handle day to day spread sheets, word documents and other such workloads. Its only down fall is choppy google docs and windows (I have linux mint installed now). Its unfortunate we're forced to move on simply because MS Virus wants us to spend $1300 to run bloated software just to use a simple word processor.

RUS-User
Avatar level
4,414

Good

9 months ago.

11 years of perfect working. Now playing even MAFIA III with it on low. Really fond of it. All my tasks and games runs quite good. In 2019 and so many years of stable working I like it. It was the my best choice in them days.

ITA-User
Avatar level
3,705

Excellent

3 years ago.

I have it. After several years i can still work very smoothly

ARG-User
Avatar level
2,982

Excellent

14 months ago.

Cheaper and more effective than some mobile or low power processors from today.

PRT-User
Avatar level
2,370

Excellent

2 years ago.

Very nice for a cheap processor (10 eur). Works really nice.

Antimat
Avatar level
42

Excellent

2 years ago.

Very old CPU but still working ..... And in this time we'll get him very cheap Only 4mb L2 cache slows him down

Your
opinion?
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Ready to retire
Age: 8 years

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1357 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
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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?
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What is quad core floating point speed?
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What is single core floating point speed?
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ALL FAQs »

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The Best.
CPUGPUSSD
Intel Core i5-12600K $280Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-12400F $168Nvidia RTX 3050 $250Samsung 850 Evo 120GB $109
Intel Core i7-12700K $380Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $67SanDisk Extreme 32GB $28
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