Product comparison · 2 laptops

Acer Aspire 7745G-5454G50Bnks vs Lenovo L512 + 45N6678

119specifications compared
32differ
87identical
31known for one product only

Key differences

Display diagonal
- Aspire 7745G-5454G50Bnks:43.9 cm (17.3")
- L512 + 45N6678:39.6 cm (15.6")
Display resolution
- Aspire 7745G-5454G50Bnks:1600 x 900 pixels
- L512 + 45N6678:1366 x 768 pixels
Processor model
- Aspire 7745G-5454G50Bnks:i5-450M
- L512 + 45N6678:i5-460M
Processor boost frequency
- Aspire 7745G-5454G50Bnks:2.66 GHz
- L512 + 45N6678:2.8 GHz
Processor frequency
- Aspire 7745G-5454G50Bnks:2.4 GHz
- L512 + 45N6678:2.53 GHz
System bus rate
- Aspire 7745G-5454G50Bnks:4.8 GT/s
- L512 + 45N6678:2.5 GT/s
Processor socket
- Aspire 7745G-5454G50Bnks:Socket 988
- L512 + 45N6678:BGA 1288
CPU multiplier (bus/core ratio)
- Aspire 7745G-5454G50Bnks:18
- L512 + 45N6678:19

Side by side

Differences highlightedShow differences only

Comparison of Aspire 7745G-5454G50Bnks, L512 + 45N6678
150 specifications	A Acer Aspire 7745G-5454G50Bnks View product	B Lenovo L512 + 45N6678 View product
Designidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Display2 differ
Display diagonalDiffers	43.9 cm (17.3")	39.6 cm (15.6")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
HD typeKnown for one	HD+	Unknown — not stated by the source
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightness	220 cd/m²	220 cd/m²
Display response rise/fallKnown for one	8 ms	Unknown — not stated by the source
Contrast ratio (typical)Known for one	Unknown — not stated by the source	500:1
Processor6 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generation	4th gen Intel® Core™ i5	4th gen Intel® Core™ i5
Processor modelDiffers	i5-450M	i5-460M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	2.66 GHz	2.8 GHz
Processor frequencyDiffers	2.4 GHz	2.53 GHz
System bus rateDiffers	4.8 GT/s	2.5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	Socket 988	BGA 1288
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i5-400 Series	Intel Core i5-400 Series
Processor codename	Arrandale	Arrandale
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	K0	K0
Thermal Design Power (TDP)	35 W	35 W
Tjunction	105 °C	105 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16	1x16
PCI Express slots version	2.0	2.0
Number of Processing Die Transistors	382 M	382 M
Processing Die size	81 mm²	81 mm²
CPU multiplier (bus/core ratio)Differs	18	19
ECC supported by processor	No	No
Memory1 differ
Internal memoryDiffers	4 GB	2 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storage2 differ
Total storage capacityDiffers	500 GB	320 GB
HDD interface	SATA	SATA
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD, xD	Memory Stick (MS), MMC, MS PRO, SD, SDHC, xD
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-RW
Graphics1 differ
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	AMD Mobility Radeon HD 5850	Unknown — not stated by the source
Graphics card familyDiffers	AMD	Intel
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card base frequency	500 MHz	500 MHz
On-board graphics card dynamic frequency (max)	766 MHz	766 MHz
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Built-in subwooferKnown for one	Yes	Unknown — not stated by the source
Network2 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Gigabit Ethernet, WLAN	Gigabit Ethernet
BluetoothDiffers	Yes	No
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Ports & interfaces5 differ
USB 2.0 ports quantity	4	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
eSATA ports quantityDiffers	0	1
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
DisplayPorts quantityDiffers	0	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorDiffers	No	Yes
ExpressCard slotDiffers	No	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slotDiffers	No	Yes
Modem (RJ-11) ports	1	1
TV-in port	No	No
TV-out	No	No
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Serial ports quantityKnown for one	0	Unknown — not stated by the source
Performance1 differ
Motherboard chipsetDiffers	Intel® HM55 Express	Intel® QM57 Express
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Processor special features4 differ
Intel® Wireless Display (Intel® WiDi)	No	No
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	45 nm	45 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	Yes	Yes
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 Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	Yes	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)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Quick Sync Video Technology	No	No
Intel® Turbo Boost Technology	1.0	1.0
Physical Address Extension (PAE)Differs	36 bit	Yes
Processor ARK IDDiffers	49022	50179
Processor codeDiffers	SLBTZ	SLC22
Processor package size	rPGA 37.5x 37.5, BGA 34x28	rPGA 37.5x 37.5, BGA 34x28
Supported instruction setsDiffers	SSE4.1/4.2	SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Battery1 differ
Number of battery cells	6	6
Battery capacityKnown for one	48.8 Wh	Unknown — not stated by the source
Battery life (max)Differs	4 h	4.7 h
Poweridentical
DC-in jack	Yes	Yes
Security1 differ
Cable lock slot	Yes	Yes
Cable lock slot typeDiffers	Kensington	IBM
Password protection typeKnown for one	BIOS	Unknown — not stated by the source
HDD user passwordKnown for one	Yes	Unknown — not stated by the source
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Weight & dimensions5 differ
WeightDiffers	3.25 kg	2.56 kg
WidthDiffers	410 mm	380 mm
DepthDiffers	286 mm	247 mm
Height (front)Differs	3.5 cm	3.2 cm
Height (rear)Differs	4.15 cm	3.6 cm
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Infrared data port	No	No
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Internal modemKnown for one	Yes	Unknown — not stated by the source
TV tuner integratedKnown for one	No	Unknown — not stated by the source
Supplied AC adapter type	AC	AC
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business
Keyboardidentical
Pointing deviceKnown for one	Unknown — not stated by the source	ThinkPad UltraNav

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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