Product comparison · 2 laptops

Acer eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500 vs HP Compaq Presario CQ45-709TU Intel® Celeron® B820

86specifications compared
25differ
61identical
84known for one product only

Key differences

Display diagonal
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:39.6 cm (15.6")
- Compaq Presario CQ45-709TU Intel® Celeron® B820:35.6 cm (14")
Processor family
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:Intel® Pentium® Dual-Core
- Compaq Presario CQ45-709TU Intel® Celeron® B820:Intel® Celeron®
Processor model
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:T4500
- Compaq Presario CQ45-709TU Intel® Celeron® B820:B820
Processor frequency
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:2.3 GHz
- Compaq Presario CQ45-709TU Intel® Celeron® B820:1.7 GHz
Processor cache
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:1 MB
- Compaq Presario CQ45-709TU Intel® Celeron® B820:2 MB
Processor cache type
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:Smart Cache
- Compaq Presario CQ45-709TU Intel® Celeron® B820:L2
Processor lithography
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:45 nm
- Compaq Presario CQ45-709TU Intel® Celeron® B820:32 nm
Processor codename
- eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500:Penryn
- Compaq Presario CQ45-709TU Intel® Celeron® B820:Sandy Bridge

Side by side

Differences highlightedShow differences only

Comparison of E727-452G25Mn, CQ45-709TU
170 specifications	A Acer eMachines E727-452G25Mn Intel® Pentium® Dual-Core T4500 Model E727-452G25Mn View product	B HP Compaq Presario CQ45-709TU Intel® Celeron® B820 Model CQ45-709TU View product
Designidentical
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Country of originKnown for one	Unknown — not stated by the source	China
Display1 differ
Display diagonalDiffers	39.6 cm (15.6")	35.6 cm (14")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
HD type	HD	HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
TouchscreenKnown for one	No	Unknown — not stated by the source
Display number of coloursKnown for one	16.78 million colours	Unknown — not stated by the source
Processor7 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium® Dual-Core	Intel® Celeron®
Processor modelDiffers	T4500	B820
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.3 GHz	1.7 GHz
System bus rateKnown for one	Unknown — not stated by the source	5 GT/s
Processor cacheDiffers	1 MB	2 MB
Processor cache typeDiffers	Smart Cache	L2
Processor socketKnown for one	Unknown — not stated by the source	rPGA988B
Processor lithographyDiffers	45 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Celeron Processor B800 Series for Mobile
Processor codenameDiffers	Penryn	Sandy Bridge
Bus typeKnown for one	Unknown — not stated by the source	DMI
FSB ParityKnown for one	Unknown — not stated by the source	No
Thermal Design Power (TDP)	35 W	35 W
TjunctionKnown for one	Unknown — not stated by the source	100 °C
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8, 1x8+2x4
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	17
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	410 M	Unknown — not stated by the source
Processing Die sizeKnown for one	107 mm²	Unknown — not stated by the source
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
Memory1 differ
Internal memory	2 GB	2 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memoryDiffers	4 GB	8 GB
Memory layout (slots x size)Known for one	1 x 2 GB	Unknown — not stated by the source
Memory slots (available)Known for one	1	Unknown — not stated by the source
Storage4 differ
Total storage capacityDiffers	250 GB	500 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	250 GB	500 GB
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
Optical drive typeDiffers	DVD±RW	DVD Super Multi
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD, xD	MMC, SD
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Unknown — not stated by the source	No
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Not available
Graphics card family	Intel	Intel
On-board graphics card familyDiffers	Intel® GMA	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® GMA 4500	Intel® HD Graphics
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	650 MHz
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	1050 MHz
On-board graphics card memoryKnown for one	1.759 GB	Unknown — not stated by the source
Audioidentical
Built-in speaker(s)	Yes	Yes
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Speakers manufacturerKnown for one	Unknown — not stated by the source	Altec Lansing
Built-in microphone	Yes	Yes
Audio systemKnown for one	HD	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	No
Network2 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Fast Ethernet	Fast LAN, WLAN
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100 Mbit/s	10,100 Mbit/s
BluetoothDiffers	No	Yes
Cabling technology	10/100Base-T(X)	10/100Base-T(X)
Integrated 4G WiMAXKnown for one	Unknown — not stated by the source	No
Networking standardsKnown for one	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3u	Unknown — not stated by the source
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	2	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
eSATA/USB 2.0 ports quantity	0	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	0	0
DisplayPorts quantity	0	0
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
ExpressCard slot	No	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Microphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypadDiffers	Yes	No
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Keyboard layoutKnown for one	AZERTY	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 7 Home Premium	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Processor special features2 differ
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	32 nm
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	Yes
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	Yes
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology (VT-x)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Insider™Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost Technology	No	No
Processor ARK IDDiffers	42925	67193
Processor package sizeKnown for one	Unknown — not stated by the source	37.5x37.5 (rPGA988B)
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.x
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Processor codeKnown for one	SLGZC	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Number of battery cells	6	6
Battery capacityKnown for one	4400 mAh	Unknown — not stated by the source
Battery life (max)Known for one	3 h	Unknown — not stated by the source
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	65 W
DC-in jack	Yes	Yes
AC adapter frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
AC adapter input voltageKnown for one	120 - 230 V	Unknown — not stated by the source
Power auto-sensingKnown for one	Yes	Unknown — not stated by the source
Securityidentical
Cable lock slot	No	No
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Weight & dimensions4 differ
WeightDiffers	2.7 kg	2.2 kg
WidthDiffers	372 mm	342 mm
DepthDiffers	247 mm	231 mm
HeightDiffers	40 mm	35.5 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Manual	Yes	Yes
Cables includedKnown for one	AC	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
3DKnown for one	No	Unknown — not stated by the source
Volume controlKnown for one	Digital	Unknown — not stated by the source
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Supplied AC adapter typeKnown for one	AC	Unknown — not stated by the source
Cameraidentical
Front camera resolution (numeric)Known for one	1.3 MP	Unknown — not stated by the source
Swivel webcamKnown for one	No	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel® GL40 Express	Unknown — not stated by the source
Videoidentical
HD-ReadyKnown for one	Yes	Unknown — not stated by the source

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