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Product comparison · 2 laptops

Acer Aspire 1681WLMi 1.5GHz/512MB/40GB QW vs Acer ASPIRE 1684WLMI PMC745-1.8

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  • 26specifications compared
  • 8differ
  • 18identical
  • 74known for one product only

Key differences

The Acer ASPIRE 1684WLMI PMC745-1.8 has 0.3 GHz more processor frequency than the Acer Aspire 1681WLMi 1.5GHz/512MB/40GB QW (1.8 GHz vs 1.5 GHz). The Acer ASPIRE 1684WLMI PMC745-1.8 has 40 GB more total storage capacity than the Acer Aspire 1681WLMi 1.5GHz/512MB/40GB QW (80 GB vs 40 GB). Compatible operating systems: Microsoft Windows XP on the Acer Aspire 1681WLMi 1.5GHz/512MB/40GB QW, Microsoft Windows XP Home Edition on the Acer ASPIRE 1684WLMI PMC745-1.8. Dimensions (WxDxH): 364 x 279 x 38.9 mm on the Acer Aspire 1681WLMi 1.5GHz/512MB/40GB QW, 364 x 279 x 39 mm on the Acer ASPIRE 1684WLMI PMC745-1.8.

  • Processor frequency
    • 1.5 GHz
    • 1.8 GHz
  • Total storage capacity
    • 40 GB
    • 80 GB
  • Dimensions (WxDxH)
    • 364 x 279 x 38.9 mm
    • 364 x 279 x 39 mm

Side by side

Differences highlightedShow differences only
100 specifications
A

Acer

Aspire 1681WLMi 1.5GHz/512MB/40GB QWView product
B

Acer

ASPIRE 1684WLMI PMC745-1.8View product
Displayidentical
Display diagonal39.1 cm (15.4")39.1 cm (15.4")
Display resolution1280 x 800 pixels1280 x 800 pixels
Native aspect ratio16:1016:10
Contrast ratio (typical)750:1750:1
Processor1 differ
Processor manufacturerKnown for oneIntel
Processor familyKnown for oneIntel Pentium Mobile
Processor modelKnown for one745
Processor coresKnown for one1
Processor threadsKnown for one1
Processor frequencyDiffers1.5 GHz1.8 GHz
Processor cache2 MB2 MB
Processor cache typeL2L2
Processor front side bus400 MHz400 MHz
Processor socketKnown for oneSocket 479
Processor lithographyKnown for one90 nm
Processor operating modesKnown for one32-bit
Processor seriesKnown for oneIntel Pentium M 700 Series
Processor codenameKnown for oneDothan
Bus typeKnown for oneFSB
FSB ParityKnown for oneNo
Thermal Design Power (TDP)Known for one21 W
TjunctionKnown for one100 °C
Number of Processing Die TransistorsKnown for one144 M
Processing Die sizeKnown for one87 mm²
CPU multiplier (bus/core ratio)Known for one18
ECC supported by processorKnown for oneNo
Cache internalKnown for one2048 MB
Memoryidentical
Internal memory0.5 GB0.5 GB
Internal memory typeKnown for oneDDR-SDRAM
Maximum internal memoryKnown for one2 GB
Storage1 differ
Total storage capacityDiffers40 GB80 GB
HDD speedKnown for one4200 RPM
HDD interfaceKnown for oneUltra-ATA/100
Graphicsidentical
Discrete graphics cardYesYes
Discrete graphics card modelAMD Radeon 9700AMD Radeon 9700
Maximum graphics card memory0.064 GB0.064 GB
Audioidentical
Audio systemKnown for oneSoundBlaster-Pro and MS DirectSound-compatible
Number of built-in speakers22
Optical driveidentical
CD read speedKnown for one24x
CD write speedKnown for one16x
CD rewrite speedKnown for one10x
DVD read speedKnown for one8x
DVD write speedKnown for one4x
DVD rewrite speedKnown for one2.4x
Network1 differ
Networking featuresDiffersEthernet/Fast EthernetEthernet/Fast Ethernet/IEEE 802.11b/IEEE 802.11g
Wi-FiKnown for oneYes
Networking typeKnown for oneWLAN, Ethernet
Wireless technologyKnown for oneIntel PRO/Wireless 2200BG
Ethernet LAN data ratesKnown for one10,100 Mbit/s
Wireless complianceKnown for oneIEEE 802.11b/g
Ports & interfaces1 differ
I/O portsDiffers3x USB 2.0 1x Infrared (FIR) 1x VGA for external monitor 1x 32bit type II PCMCIA CardBus slot 1x S-video out (NTSC/PAL) 1x IEEE 1394 port 1x RJ-11 jack 1x RJ-45 jack 1x speaker/ headphone/ line-out jack 1x microphone/ line-in jack 1x DC-in jack for AC adapterFirewire (IEEE-1394), 3x USB 2.0, 1x FIR, 1x RJ-45 ethernet, 1x RJ-11 modem, external (VGA) display port, S-video/TV-out, 1x PC Card slot (1x Type II)
Performanceidentical
Motherboard chipsetIntel® 855GMEIntel® 855GME
Software2 differ
Bundled softwareDiffersAspire Arcade Norton AntiVirus Adobe Acrobat Reader Cyberlink PowerDVD NTI CD Maker Acer Launch Manager Acer eManager Acer System Recovery CD Acer disc-to-disc recovery (This feature uses 2 GB of hard disc space)Norton AntiVirus, CyberLink PowerDVD, Adobe Reader, Acer Launch Manager, Acer eManager, NTI CD Maker, Disc-to-disc recovery (uses 2GB of HD-space)
Compatible operating systemsDiffersMicrosoft Windows XPMicrosoft Windows XP Home Edition
Processor special featuresidentical
Intel® Wireless Display (Intel® WiDi)Known for oneNo
Embedded options availableKnown for oneYes
Enhanced Intel SpeedStep TechnologyKnown for oneYes
Execute Disable BitKnown for oneYes
Idle StatesKnown for oneNo
Intel 64Known for oneNo
Intel Clear Video TechnologyKnown for oneNo
Intel Demand Based SwitchingKnown for oneNo
Intel Dual Display Capable TechnologyKnown for oneNo
Intel Enhanced Halt StateKnown for oneNo
Intel FDI TechnologyKnown for oneNo
Intel Fast Memory AccessKnown for oneNo
Intel Flex Memory AccessKnown for oneNo
Intel Rapid Storage TechnologyKnown for oneNo
Intel Trusted Execution TechnologyKnown for oneNo
Intel VT-x with Extended Page Tables (EPT)Known for oneNo
Intel Virtualization Technology (VT-x)Known for oneNo
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneNo
Intel® AES New Instructions (Intel® AES-NI)Known for oneNo
Intel® Anti-Theft Technology (Intel® AT)Known for oneNo
Intel® Clear Video HD Technology (Intel® CVT HD)Known for oneNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneNo
Intel® Hyper Threading Technology (Intel® HT Technology)Known for oneNo
Intel® InTru™ 3D TechnologyKnown for oneNo
Intel® Insider™Known for oneNo
Intel® My WiFi Technology (Intel® MWT)Known for oneNo
Intel® Quick Sync Video TechnologyKnown for oneNo
Intel® Turbo Boost TechnologyKnown for oneNo
Processor ARK IDKnown for one27591
Processor package sizeKnown for one35 x 35 mm
Thermal Monitoring TechnologiesKnown for oneNo
Conflict-Free processorKnown for oneNo
Batteryidentical
Battery life (max)5 h5 h
Weight & dimensions1 differ
Weight2.95 kg2.95 kg
WidthKnown for one364 mm
DepthKnown for one279 mm
Dimensions (WxDxH)Differs364 x 279 x 38.9 mm364 x 279 x 39 mm
Other features1 differ
Special featuresDiffers3-in-1 card reader DualView support MPEG-2/DVD hardware assisted capability Aspire CinemaVision video technology Aspire ClearVision video optimisation MS-Sound compatible3-in-1 card reader: supporting Secure Digital, MultiMediaCard en Memory Stick
Internal modemYesYes
Modem speed56 Kbit/s56 Kbit/s
Supplied AC adapter typeACAC
Security featuresKnown for oneSlot for Kensington lock BIOS user and supervisor passwords
Power managementKnown for oneACPI
Wake-on-Ring readyKnown for oneYes
Keyboardidentical
Keyboard typeKnown for oneQWERTY
Certificatesidentical
CertificationKnown for oneDMI 2.0 ACPI Mobile PC2001 Wi-Fi

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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