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Intel

Core i7 U 640

▲ 500 ▼

2 Cores, 4 Threads @1.2 GHz, Arrandale.
Release date ≈ Q4 2014.

Average Bench: 33.2% (1254th of 1445)

Based on 232 user benchmarks.  Device: BFEBFBFF00020655 Model: Intel(R) Core(TM) i7 CPU U 640 @ 1.20GHz
Poor: 17%Average: 33.2% Great: 40%
Gaming
Gaming 33%
Sail boat
Desktop
Desktop 38%
Jet ski
Workstation
Workstation 23%
Surfboard

Popular builds with this CPU

Poor average bench

The Intel Core i7 U 640 averaged 66.8% 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 52.1Pts
Avg. Single Core Speed 42.8Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7 U 640 is 23%. This is a relatively narrow range which indicates that the Intel Core i7 U 640 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Speed 88.1Pts
Avg. Octa Core Speed 86.8Pts
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Average Bench

(Based on 232 samples)
Rank 125433.2%
Min Avg Max
27.8 Memory 52.1 64
13.2 1-Core 42.8 63.3
23.2 2-Core 64.2 89.4
34.4% 53 Pts
Min Avg Max
35.2 4-Core 84.2 113
36.3 8-Core 86.8 113
11.4% 85.5 Pts
Min Avg Max
35.1 64-Core 88.1 114
5.5% 88.1 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
CPU, 1 CPU, 2 cores, 4 threads
Base clock 1.2 GHz, turbo 1.7 GHz (avg)
37.1% Below average
Memory 57.8
1-Core 53.4
2-Core 86.8
41% 66 Pts
4-Core 97.4
8-Core 96.5
13% 96.9 Pts
64-Core 97.8
6% 97.8 Pts
CPU, 1 CPU, 2 cores, 4 threads
Base clock 1.2 GHz, turbo 1.7 GHz (avg)
36.8% Below average
Memory 57.1
1-Core 55.9
2-Core 85.9
41% 66.3 Pts
4-Core 98
8-Core 98.9
13% 98.4 Pts
64-Core 98
6% 98 Pts
CPU, 1 CPU, 2 cores, 4 threads
Base clock 1.2 GHz, turbo 1.75 GHz (avg)
34.2% Below average
Memory 52.4
1-Core 51
2-Core 76.5
38% 60 Pts
4-Core 93.8
8-Core 96.7
13% 95.2 Pts
64-Core 98.2
6% 98.2 Pts
CPU, 1 CPU, 2 cores, 4 threads
Base clock 1.2 GHz, turbo 1.5 GHz (avg)
33.5% Below average
Memory 53.3
1-Core 52
2-Core 69.2
37% 58.2 Pts
4-Core 81.6
8-Core 80.9
11% 81.2 Pts
64-Core 83.3
5% 83.3 Pts
CPU 1, 1 CPU, 2 cores, 4 threads
Base clock 1.2 GHz, turbo 1.2 GHz (avg)
30.7% Below average
Memory 53.2
1-Core 27.5
2-Core 46.9
29% 42.5 Pts
4-Core 48
8-Core 61.5
7% 54.8 Pts
64-Core 61
4% 61 Pts
CPU, 1 CPU, 2 cores, 4 threads
Base clock 1.2 GHz, turbo 1.5 GHz (avg)
30.2% Below average
Memory 50
1-Core 28.2
2-Core 45.9
28% 41.4 Pts
4-Core 62.4
8-Core 64.2
8% 63.3 Pts
64-Core 70.3
4% 70.3 Pts
232 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,873,561 CPUs tested

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 Core i7 U 640 Builds (Compare 27 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 5%
Tree trunk
Desktop
Desktop 34%
Sail boat
Workstation
Workstation 5%
Tree trunk

System: Alienware M11x R2

CPU
Core i7 U 640IntelBench 33%, 232 samples10x
GPU
HD Graphics (Arrandale 0.667/0.766 GHz)IntelBench 1%, 99,513 samples16x
GeForce GT 335MNvidiaBench 3%, 977 samples11x
SSD
512GB 512GBNetacBench 69%, 1,541 samples2x
Q300 480GBToshiba  $152Bench 80%, 5,920 samples2x
M5S 128GBPlextor  $75Bench 73%, 5,727 samples1x
RAM
HMT351S6BFR8C-H9 2x4GBHynixBench 40%, 8,137 samples6x
M471B5273DH0-CH9 2x4GBSamsungBench 43%, 15,815 samples3x
HMT325S6BFR8C-H9 2x2GBHynixBench 33%, 8,194 samples3x
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Popular Core i7 U 640 systems:

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Processor Rankings (Price vs Performance) May 2024 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™ i7-640UM Processor (4M Cache, 1.20 GHz)
Code NameArrandale
Launch DateQ1'10
Processor Numberi7-640UM
# of Cores2
# of Threads4
Cache4 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.1/4.2
Embedded Options AvailableNo
Lithography32 nm
Recommended PriceN/A
Clock Speed1.2 GHz
Max Turbo Frequency2.266 GHz
Bus Speed2.5 GT/s DMI
Max TDP18 W

Graphics

Processor GraphicsIntel® HD Graphics
Graphics Base Frequency166 MHz
# of Displays Supported2
Graphics Max Dynamic Frequency500 MHz
Clear Video HD TechYes
Flexible Display InterfaceYes
Clear Video Tech for MIDYes
Macrovision License RequiredNo

Memory

Max Memory Size8 GB
Memory TypesDDR3 800
Memory Channels2
Memory Bandwidth12.8 GB/s
Physical Address Extensions36-bit
ECC Memory SupportedNo

Expansion Options

PCI Express Revision2.0
PCI Express Configurations1x16
Max # of PCI Express Lanes16

Data Protection

AES New InstructionsYes

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
Fast Memory AccessYes
Flex Memory AccessYes

Package

Package SizeBGA 34mm x 28mm
Graphics and IMC Lithography45 nm
Max CPU Configuration1
Sockets SupportedBGA1288
Processing Die Size81 mm2
# of Processing Die Transistors382 million
Graphics and IMC Die Size114 mm2
# of Graphics and IMC Die Transistors177 million

Platform Protection

Execute Disable BitYes
Trusted Execution TechYes

 Comments

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $289Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $168Nvidia RTX 4070 $515Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $39SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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