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Product comparison · 2 laptops

Acer Aspire One 721 AMD Athlon II Neo K145 Netbook vs Acer Aspire One D255e Intel Atom® N550 Netbook

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  • 52specifications compared
  • 16differ
  • 36identical
  • 35known for one product only

Key differences

  • Display diagonal
    • 29.5 cm (11.6")
    • 25.6 cm (10.1")
  • Processor manufacturer
    • AMD
    • Intel
  • Processor family
    • AMD Athlon II Neo
    • Intel Atom®
  • Processor model
    • K145
    • N550
  • Processor frequency
    • 1.8 GHz
    • 1.5 GHz
  • Maximum internal memory
    • 4 GB
    • 2 GB
  • Graphics card
    • Radeon HD 4225
    • GMA 3150
  • Networking features
    • Gigabit Ethernet, WLAN
    • Fast Ethernet, WLAN

Side by side

Differences highlightedShow differences only
87 specifications
A

Acer

Aspire One 721 AMD Athlon II Neo K145 Netbook

Model 721

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B

Acer

Aspire One D255e Intel Atom® N550 Netbook

Model D255e

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Designidentical
Product typeNetbookNetbook
Product colourBlackBlack
Display1 differ
Display diagonalDiffers29.5 cm (11.6")25.6 cm (10.1")
Display resolution1024 x 600 pixels1024 x 600 pixels
Display number of coloursKnown for one16.78 million colours
LED backlightYesYes
Native aspect ratio5:35:3
Processor4 differ
Processor manufacturerDiffersAMDIntel
Processor familyDiffersAMD Athlon II NeoIntel Atom®
Processor modelDiffersK145N550
Processor coresKnown for one2
Processor threadsKnown for one4
Processor frequencyDiffers1.8 GHz1.5 GHz
System bus rateKnown for one2.5 GT/s
Processor cache1 MB1 MB
Processor cache typeL2L2
Processor lithographyKnown for one45 nm
Processor operating modesKnown for one64-bit
Processor codenameKnown for onePineview
Bus typeKnown for oneDMI
Thermal Design Power (TDP)Known for one8.5 W
Number of Processing Die TransistorsKnown for one176 M
Processing Die sizeKnown for one87 mm²
Processor front side busKnown for one800 MHz
Memory1 differ
Internal memory2 GB2 GB
Internal memory typeDDR3-SDRAMDDR3-SDRAM
Memory clock speedKnown for one1066 MHz
Maximum internal memoryDiffers4 GB2 GB
Storageidentical
Total storage capacity320 GB320 GB
HDD capacity320 GB320 GB
HDD interfaceSATASATA
HDD speed5400 RPM5400 RPM
Optical drive typeKnown for oneNo
Card reader integratedYesYes
Compatible memory cardsKnown for oneMemory Stick (MS), MMC, MS PRO, SD, xD
Graphics1 differ
On-board graphics card base frequencyKnown for one200 MHz
Graphics cardDiffersRadeon HD 4225GMA 3150
Audioidentical
Audio systemHDHD
Number of built-in speakersKnown for one2
Built-in microphoneYesYes
Cameraidentical
Front camera resolution (numeric)1.3 MP1.3 MP
Network3 differ
Wi-FiYesYes
Networking featuresDiffersGigabit Ethernet, WLANFast Ethernet, WLAN
Wireless technologyDiffers802.11b/g/nIEEE 802.11b/g/n
Ethernet LANYesYes
Ethernet LAN data ratesDiffers10,100,1000 Mbit/s10,100 Mbit/s
BluetoothYesYes
Ports & interfaces1 differ
USB 2.0 ports quantity33
Ethernet LAN (RJ-45) ports11
HDMI ports quantityDiffers10
VGA (D-Sub) ports quantity11
Headphone outputs11
ExpressCard slotNoNo
Performanceidentical
GPS (satellite)NoNo
Keyboardidentical
Pointing deviceTouchpadTouchpad
Software1 differ
Operating system installedDiffersWindows 7 Home PremiumLinux
Processor special featuresidentical
Embedded options availableKnown for oneNo
Enhanced Intel SpeedStep TechnologyKnown for oneYes
Execute Disable BitKnown for oneYes
Intel 64Known for oneYes
Intel Demand Based SwitchingKnown for oneNo
Intel Trusted Execution TechnologyKnown for oneNo
Intel Virtualization Technology (VT-x)Known for oneNo
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneNo
Intel® Hyper Threading Technology (Intel® HT Technology)Known for oneYes
Intel® Turbo Boost TechnologyKnown for oneNo
Processor ARK IDKnown for one50154
Processor package sizeKnown for one22 x 22 mm
Supported instruction setsKnown for oneSSE2, SSE3, SSSE3
Thermal Monitoring TechnologiesKnown for oneYes
Conflict-Free processorKnown for oneYes
Battery1 differ
Battery technologyLithium-Ion (Li-Ion)Lithium-Ion (Li-Ion)
Number of battery cells66
Battery capacity4400 mAh4400 mAh
Battery life (max)Differs5.5 h8 h
Poweridentical
DC-in jackYesYes
Securityidentical
Cable lock slotYesYes
Cable lock slot typeKensingtonKensington
BIOS passwordYesYes
HDD user passwordYesYes
Weight & dimensions3 differ
WeightDiffers1.4 kg1.22 kg
WidthDiffers285 mm258.5 mm
DepthDiffers204 mm185 mm
HeightKnown for one24 mm
Height (front)Known for one2.57 cm
Height (rear)Known for one2.8 cm
Other featuresidentical
Supplied AC adapter typeACAC

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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