Product comparison · 2 laptops

HP Compaq Presario CQ45-709TU Intel® Celeron® B820 vs LG A series A540-DE40K laptop Intel® Core™ i5 i5-2450M

124specifications compared
52differ
72identical
35known for one product only

Key differences

Product colour
- Compaq Presario CQ45-709TU Intel® Celeron® B820:Black
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:Silver
Display diagonal
- Compaq Presario CQ45-709TU Intel® Celeron® B820:35.6 cm (14")
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:39.6 cm (15.6")
Display resolution
- Compaq Presario CQ45-709TU Intel® Celeron® B820:1366 x 768 pixels
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:1920 x 1080 pixels
HD type
- Compaq Presario CQ45-709TU Intel® Celeron® B820:HD
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:Full HD
Processor family
- Compaq Presario CQ45-709TU Intel® Celeron® B820:Intel® Celeron®
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:Intel® Core™ i5
Processor model
- Compaq Presario CQ45-709TU Intel® Celeron® B820:B820
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:i5-2450M
Processor threads
- Compaq Presario CQ45-709TU Intel® Celeron® B820:2
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:4
Processor frequency
- Compaq Presario CQ45-709TU Intel® Celeron® B820:1.7 GHz
- A series A540-DE40K laptop Intel® Core™ i5 i5-2450M:2.5 GHz

Side by side

Differences highlightedShow differences only

Comparison of CQ45-709TU, A540-DE40K
159 specifications	A HP Compaq Presario CQ45-709TU Intel® Celeron® B820 Model CQ45-709TU View product	B LG A series A540-DE40K laptop Intel® Core™ i5 i5-2450M Model A540-DE40K View product
Design1 differ
Product colourDiffers	Black	Silver
Form factor	Clamshell	Clamshell
Country of originKnown for one	China	Unknown — not stated by the source
Display3 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1920 x 1080 pixels
HD typeDiffers	HD	Full HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Processor8 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Celeron®	Intel® Core™ i5
Processor generationKnown for one	Unknown — not stated by the source	2nd gen Intel® Core™ i5
Processor modelDiffers	B820	i5-2450M
Processor cores	2	2
Processor threadsDiffers	2	4
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.1 GHz
Processor frequencyDiffers	1.7 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cacheDiffers	2 MB	3 MB
Processor cache typeDiffers	L2	Smart Cache
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Celeron Processor B800 Series for Mobile	Intel Core i5-2400 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
SteppingKnown for one	Unknown — not stated by the source	J1
Thermal Design Power (TDP)	35 W	35 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	17	25
ECC supported by processor	No	No
Processor socketKnown for one	rPGA988B	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	2 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speedDiffers	1600 MHz	1333 MHz
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 4 GB
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Maximum internal memoryKnown for one	8 GB	Unknown — not stated by the source
Storage4 differ
Total storage capacityDiffers	500 GB	750 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	750 GB
Number of SSDs installedKnown for one	Unknown — not stated by the source	0
Optical drive typeDiffers	DVD Super Multi	DVD Super Multi DL
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	MMC, SD	Memory Stick (MS), MMC, MS PRO, SD, SDHC, SDXC, xD
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Graphics5 differ
On-board graphics card	Yes	Yes
Discrete graphics cardDiffers	No	Yes
Discrete graphics card modelDiffers	Not available	NVIDIA® GeForce® GT 555M
Graphics card familyDiffers	Intel	Intel, NVIDIA
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 3000
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	1050 MHz	1300 MHz
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x116
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	HD
Built-in speaker(s)	Yes	Yes
Built-in subwooferKnown for one	Unknown — not stated by the source	Yes
Built-in microphone	Yes	Yes
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Speakers manufacturerKnown for one	Altec Lansing	Unknown — not stated by the source
Network6 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Fast LAN, WLAN	Gigabit Ethernet, WLAN
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Wi-Fi data rate (max)Known for one	Unknown — not stated by the source	300 Mbit/s
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesDiffers	10,100 Mbit/s	10,100,1000 Mbit/s
BluetoothDiffers	Yes	No
Cabling technologyDiffers	10/100Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAXDiffers	No	Yes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	3	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	1
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 quantityDiffers	0	1
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
TV-outKnown for one	Unknown — not stated by the source	No
Keyboard1 differ
Pointing device	Touchpad	Touchpad
Numeric keypadDiffers	No	Yes
Keyboard number of keysKnown for one	Unknown — not stated by the source	99
Windows keysKnown for one	Unknown — not stated by the source	Yes
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Home Basic
Operating system architecture	64-bit	64-bit
Processor special features14 differ
Intel® Wireless Display (Intel® WiDi)Differs	No	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	32 nm	32 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® My WiFi Technology (Intel® MWT)Differs	No	Yes
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	67193	53452
Processor codeKnown for one	Unknown — not stated by the source	SR04Z
Processor package sizeDiffers	37.5x37.5 (rPGA988B)	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction setsDiffers	SSE4.x	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Batteryidentical
Number of battery cells	6	6
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Power1 differ
AC adapter powerDiffers	65 W	90 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	No	No
Weight & dimensions3 differ
WeightDiffers	2.2 kg	2.63 kg
WidthDiffers	342 mm	372 mm
DepthDiffers	231 mm	248 mm
Height (front)Known for one	Unknown — not stated by the source	3.3 cm
Height (rear)Known for one	Unknown — not stated by the source	3.8 cm
HeightKnown for one	35.5 mm	Unknown — not stated by the source
Packaging contentidentical
AC adapter included	Yes	Yes
ManualKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Number of products includedKnown for one	Unknown — not stated by the source	1 pc(s)
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	AC
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	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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