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
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")
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 familyDiffers	Intel® Pentium® Dual-Core	Intel® Celeron®
Processor modelDiffers	T4500	B820
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 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
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
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
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
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
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
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
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
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
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
Networking featuresDiffers	Fast Ethernet	Fast LAN, WLAN
BluetoothDiffers	No	Yes
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
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
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
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
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 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 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
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
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)
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
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
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
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
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.

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