All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 laptops

Acer Extensa 7720-1A2G16Mi vs ASUS X51R-AP074A laptop Intel® Core™2 Duo

Add a product
  • 50specifications compared
  • 17differ
  • 33identical
  • 29known for one product only

Key differences

  • Display diagonal
    • 43.2 cm (17")
    • 39.1 cm (15.4")
  • Display resolution
    • 1440 x 900 pixels
    • 1280 x 800 pixels
  • Processor family
    • Intel® Celeron® M
    • Intel® Core™2 Duo
  • Processor frequency
    • 1.73 GHz
    • 1.86 GHz
  • Internal memory
    • 2 GB
    • 1 GB
  • Total storage capacity
    • 160 GB
    • 80 GB
  • Discrete graphics card model
    • Intel® GMA X3100
    • AMD Radeon X300
  • Audio system
    • High Definition Audio
    • Azalia

Side by side

Differences highlightedShow differences only
79 specifications
A

Acer

Extensa 7720-1A2G16MiView product
B

ASUS

X51R-AP074A laptop Intel® Core™2 Duo

Model X51R-AP074A

View product
Display2 differ
Display diagonalDiffers43.2 cm (17")39.1 cm (15.4")
Display resolutionDiffers1440 x 900 pixels1280 x 800 pixels
Native aspect ratio16:1016:10
Processor2 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Celeron® MIntel® Core™2 Duo
Processor frequencyDiffers1.73 GHz1.86 GHz
Processor cacheKnown for one0.512 MB
Processor cache typeKnown for oneL2
Processor front side busKnown for one533 MHz
Memory1 differ
Internal memoryDiffers2 GB1 GB
Internal memory typeDDR2-SDRAMDDR2-SDRAM
Memory clock speedKnown for one667 MHz
Maximum internal memoryKnown for one2 GB
Memory layout (slots x size)Known for one2 x 1 GB
Storage1 differ
Total storage capacityDiffers160 GB80 GB
HDD interfaceKnown for oneSATA
HDD speed5400 RPM5400 RPM
Optical drive typeKnown for oneDVD Super Multi
Card reader integratedKnown for oneYes
Compatible memory cardsKnown for oneMMC, MS Pro, SD
Graphics1 differ
Discrete graphics cardYesYes
Discrete graphics card modelDiffersIntel® GMA X3100AMD Radeon X300
Maximum graphics card memoryKnown for one0.128 GB
Audio1 differ
Audio systemDiffersHigh Definition AudioAzalia
Number of built-in speakers22
Cameraidentical
Front cameraNoNo
Network1 differ
Networking featuresDiffersGigabit EthernetFast Ethernet, WLAN
Wireless technologyIEEE 802.11b/gIEEE 802.11b/g
BluetoothNoNo
Ports & interfaces6 differ
USB 2.0 ports quantity44
Ethernet LAN (RJ-45) ports11
HDMI ports quantityKnown for one0
DVI portNoNo
VGA (D-Sub) ports quantity11
Firewire (IEEE 1394) portsDiffers10
Headphone outputs11
S/PDIF out portNoNo
Microphone inYesYes
Docking connectorNoNo
ExpressCard slotDiffersYesNo
CardBus PCMCIA slots quantityDiffers01
CardBus PCMCIA slot typeDiffersNoType III
SmartCard slotDiffersYesNo
Modem (RJ-11) ports11
TV-in portNoNo
TV-outDiffersYesNo
PS/2 ports quantity00
Parallel ports quantity00
Serial ports quantity00
USB 1.1 ports quantity00
TV-out typeKnown for oneS-Video
Performanceidentical
Motherboard chipsetKnown for oneATI Radeon Xpress 1100
Keyboardidentical
Pointing deviceTouchpadTouchpad
Keyboard number of keysKnown for one88
Keyboard keystrokeKnown for one2.5 mm
Keyboard key pitchKnown for one1.9 cm
Softwareidentical
Operating system installedWindows Vista Home BasicWindows Vista Home Basic
Bundled softwareKnown for oneASUS DVD 6.0, ASUS Medi@Show SE 2.0, Power DVD 3.0, Adobe Acrobat Reader 7.0, NERO Express 6.0
Batteryidentical
Number of battery cells66
Battery capacityKnown for one4400 mAh
Poweridentical
AC adapter powerKnown for one65 W
AC adapter input voltageKnown for one100 - 240 V
AC adapter output currentKnown for one3.42 A
AC adapter output voltageKnown for one19 V
DC-in jackYesYes
Securityidentical
Cable lock slotYesYes
Cable lock slot typeKensingtonKensington
Password protection typeBIOSBIOS
HDD user passwordKnown for oneYes
Fingerprint readerKnown for oneYes
Weight & dimensions1 differ
WeightDiffers3 kg2.8 kg
WidthKnown for one365 mm
DepthKnown for one264 mm
HeightKnown for one25.5 mm
Packaging contentidentical
AC adapter includedKnown for oneYes
Other features1 differ
Infrared data portDiffersYesNo
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
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.

More laptop comparisons

All laptop comparisons