TEST
YOUR CPU
ADD TO PC
BUILD

Intel

Core i7 Q 840

▲ 5020 ▼

4 Cores, 8 Threads @1.86 GHz, Clarksfield.
Release date ≤ Q1 2014.

Average Bench: 56.1% (643rd of 1426)

Based on 1,339 user benchmarks.  Device: BFEBFBFF000106E5 Model: Intel(R) Core(TM) i7 CPU Q 840 @ 1.87GHz
Poor: 41%Average: 56.1% Great: 63%
Gaming
Gaming 56%
Gunboat
Desktop
Desktop 61%
Destroyer
Workstation
Workstation 40%
Speed boat

Popular builds with this CPU

Average average bench

The Intel Core i7 Q 840 averaged 43.9% 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

Avg. Memory Latency 84.8Pts
Avg. Single Core Speed 62.3Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7 Q 840 is 21.3%. This is a relatively narrow range which indicates that the Intel Core i7 Q 840 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Speed 212Pts
Avg. Octa Core Speed 209Pts
ADVERTISEMENT

Average Bench

(Based on 1,339 samples)
Rank 64356.1%
Min Avg Max
63.3 Memory 84.8 93.2
29.3 1-Core 62.3 79.2
52.8 2-Core 106 142
54.3% 84.2 Pts
Min Avg Max
81.1 4-Core 153 190
110 8-Core 209 248
22.9% 181 Pts
Min Avg Max
112 64-Core 212 249
13.1% 212 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 1.85 GHz, turbo 2 GHz (avg)
61.7% Good
Memory 92.2
1-Core 68.3
2-Core 122
60% 94 Pts
4-Core 178
8-Core 216
26% 197 Pts
64-Core 217
13% 217 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 1.85 GHz, turbo 2 GHz (avg)
60.8% Good
Memory 93.1
1-Core 73.1
2-Core 118
61% 94.8 Pts
4-Core 158
8-Core 218
24% 188 Pts
64-Core 216
13% 216 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 1.85 GHz, turbo 1.9 GHz (avg)
59% Above average
Memory 90.4
1-Core 60.2
2-Core 97.7
55% 82.8 Pts
4-Core 155
8-Core 205
23% 180 Pts
64-Core 212
13% 212 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 1.85 GHz, turbo 1.9 GHz (avg)
57% Above average
Memory 91.3
1-Core 56.3
2-Core 99.3
54% 82.3 Pts
4-Core 128
8-Core 176
19% 152 Pts
64-Core 179
11% 179 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 1.85 GHz, turbo 1.9 GHz (avg)
55.6% Above average
Memory 84.8
1-Core 66.3
2-Core 96
54% 82.4 Pts
4-Core 146
8-Core 207
22% 176 Pts
64-Core 210
13% 210 Pts
Microprocessor, 1 CPU, 4 cores, 8 threads
Base clock 1.85 GHz, turbo 1.85 GHz (avg)
53.2% Above average
Memory 88.4
1-Core 43.8
2-Core 67.6
47% 66.6 Pts
4-Core 101
8-Core 168
16% 135 Pts
64-Core 190
12% 190 Pts
1,339 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 66,091,430 CPUs tested

 Prices

If you buy via one of these links, our site may earn a commission

AmazonUS $3202 mins
Send price feedback
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical Core i7 Q 840 Builds (Compare 271 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 6%
Tree trunk
Desktop
Desktop 55%
Yacht
Workstation
Workstation 6%
Tree trunk

System: Dell Precision M4500

CPU
Core i7 Q 840Intel  $320Bench 56%, 1,339 samples36x
GPU
Quadro FX 880MNvidiaBench 2%, 4,542 samples165x
Quadro FX 1800MNvidiaBench 3%, 1,209 samples106x
SSD
850 Evo 500GBSamsung  $102Bench 112%, 695,664 samples6x
A400 240GBKingston  $24Bench 66%, 424,288 samples6x
A400 480GBKingston  $31Bench 74%, 237,487 samples6x
RAM
HMT351S6BFR8C-H9 2x4GBHynixBench 40%, 8,137 samples28x
M471B5273CH0-CH9 2x4GBSamsungBench 41%, 10,285 samples23x
M471B5273DH0-CH9 2x4GBSamsungBench 43%, 15,815 samples16x
EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $422

Popular Core i7 Q 840 systems:

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.

UserBenchmark of the month

Gaming Desktop ProGaming

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) December 2023 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]

ADVERTISEMENT

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™ i7-840QM Processor (8M Cache, 1.86 GHz)
Code NameClarksfield
Launch DateQ3'10
Processor Numberi7-840QM
# of Cores4
# of Threads8
Cache8 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.2
Embedded Options AvailableNo
Lithography45 nm
Recommended Price$570.00
Clock Speed1.86 GHz
Max Turbo Frequency3.2 GHz
Bus Speed2.5 GT/s DMI
Max TDP45 W

Memory

Max Memory Size8 GB
Memory TypesDDR3 1066/1333
Memory Channels2
Memory Bandwidth21 GB/s
Physical Address Extensions36-bit
ECC Memory SupportedNo

Expansion Options

PCI Express Revision2
PCI Express Configurations1x16, 2x8
Max # of PCI Express Lanes16

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 Tech1.0
Hyper-Threading TechYes
Virtualization for Directed I/O (VT-d)Yes
VT-x with Extended Page Tables (EPT)Yes
vPro TechYes

Package

Package Size37.5mm x 37.5mm
Max CPU Configuration1
Sockets SupportedPGA988
Processing Die Size296 mm2
# of Processing Die Transistors774 million

Platform Protection

Execute Disable BitYes
Trusted Execution TechYes

 Comments

Added n/a ago.
USA-User
Avatar level
9,612

Liked (edit your comment) Add link

14 months ago.

Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 9 years

Speed Comparisons

vs Intel Core i5-13600K
vs Intel Core i5-12400F
vs Intel Core i3-12100F
vs Intel Core i5-12600K
vs Intel Core i9-13900K
vs Intel Core i7-13700K
vs AMD Ryzen 5 5600X
vs AMD Ryzen 5 3600
vs Intel Core i5-12400

1426 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
AMD vs Intel: Gaming performance 2012-2021
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)?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $270Nvidia RTX 4060 $295Crucial MX500 250GB $30
Intel Core i5-12400F $148Nvidia RTX 4060-Ti $360Samsung 850 Evo 120GB $80
Intel Core i3-12100F $93Nvidia RTX 3060-Ti $265Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $42SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $50G.SKILL Trident Z DDR4 3200 C14 4x16GB $357SanDisk Ultra Fit 32GB $16
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback