Product comparison · 2 laptops

Acer Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium vs Lenovo ThinkPad L512 + 45N6679

116specifications compared
31differ
85identical
21known for one product only

Key differences

Display brightness
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:200 cd/m²
- ThinkPad L512 + 45N6679:220 cd/m²
Processor family
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:Intel® Core™ i5
- ThinkPad L512 + 45N6679:Intel® Core™ i3
Processor generation
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:4th gen Intel® Core™ i5
- ThinkPad L512 + 45N6679:Intel® Core™ i3
Processor model
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:i5-450M
- ThinkPad L512 + 45N6679:i3-370M
System bus rate
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:4.8 GT/s
- ThinkPad L512 + 45N6679:2.5 GT/s
Tjunction
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:105 °C
- ThinkPad L512 + 45N6679:90 °C
Internal memory
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:4 GB
- ThinkPad L512 + 45N6679:2 GB
Total storage capacity
- Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium:640 GB
- ThinkPad L512 + 45N6679:320 GB

Side by side

Differences highlightedShow differences only

Comparison of 5745G, ThinkPad L512 + 45N6679
137 specifications	A Acer Aspire 5745G Intel® Core™ i5 i5-450M 39.6 cm (15.6") 4 GB DDR3-SDRAM 640 GB Intel HD Windows 7 Home Premium Model 5745G View product	B Lenovo ThinkPad L512 + 45N6679 View product
Display1 differ
Display diagonal	39.6 cm (15.6")	39.6 cm (15.6")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightnessDiffers	200 cd/m²	220 cd/m²
Processor6 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i3
Processor generationDiffers	4th gen Intel® Core™ i5	Intel® Core™ i3
Processor modelDiffers	i5-450M	i3-370M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyKnown for one	2.66 GHz	Unknown — not stated by the source
Processor frequency	2.4 GHz	2.4 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 socket	Socket 988	Socket 988
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-400 Series	Intel Core i3-300 Mobile Series
Processor codename	Arrandale	Arrandale
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	K0	K0
Thermal Design Power (TDP)	35 W	35 W
TjunctionDiffers	105 °C	90 °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)	18	18
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 slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Maximum internal memory	8 GB	8 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Storage3 differ
Total storage capacityDiffers	640 GB	320 GB
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Optical drive typeDiffers	DVD Super Multi DL	DVD-RW
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
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	Intel HD	Unknown — not stated by the source
Graphics card family	Intel	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)Differs	766 MHz	667 MHz
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Cameraidentical
Front cameraKnown for one	No	Unknown — not stated by the source
Network1 differ
Wi-Fi	Yes	Yes
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
BluetoothDiffers	No	Yes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	4	3
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
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 slot	Yes	Yes
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
TV-out	No	No
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
TV-in portKnown for one	Unknown — not stated by the source	No
Performanceidentical
Motherboard chipsetKnown for one	Intel® HM55 Express	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Touchpad	ThinkPad UltraNav
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Bundled softwareKnown for one	Acer Backup Manager, Acer eRecovery Manager, Acer Launch Manager, Adobe Reader, Adobe Flash Player, eSobi, Google Toolbar, NTI Media Maker, MyWinLocker, Oberon GameZone, WildTangent	Unknown — not stated by the source
Processor special features5 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 TechnologyDiffers	1.0	No
Physical Address Extension (PAE)Differs	36 bit	Yes
Processor ARK IDDiffers	49022	49020
Processor codeDiffers	SLBTZ	SLBUK
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 life (max)Differs	3.5 h	4.7 h
Poweridentical
DC-in jack	Yes	Yes
Security1 differ
Cable lock slot	Yes	Yes
Cable lock slot typeDiffers	Kensington	IBM
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions5 differ
WeightDiffers	2.6 kg	2.56 kg
WidthDiffers	379 mm	380 mm
DepthDiffers	250 mm	247 mm
Height (front)Differs	2.59 cm	3.2 cm
Height (rear)Differs	3.29 cm	3.6 cm
Other features1 differ
Infrared data port	No	No
Internal modemDiffers	Yes	No
Supplied AC adapter type	AC	AC
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black

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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