Product comparison · 2 pcs/workstations

Acer Aspire M7811-047 vs Lenovo ThinkCentre M90 SFF + ThinkVision L2251P

108specifications compared
16differ
92identical
34known for one product only

Key differences

The Acer Aspire M7811-047 has 6 GB more internal memory than the Lenovo ThinkCentre M90 SFF + ThinkVision L2251P (8 GB vs 2 GB). The Acer Aspire M7811-047 has 3 x 2 GB more memory layout (slots x size) than the Lenovo ThinkCentre M90 SFF + ThinkVision L2251P (4 x 2 GB vs 1 x 2 GB). The Lenovo ThinkCentre M90 SFF + ThinkVision L2251P has 1,800 RPM more HDD speed than the Acer Aspire M7811-047 (7200 RPM vs 5400 RPM). Only the Acer Aspire M7811-047 has Wi-Fi. Only the Lenovo ThinkCentre M90 SFF + ThinkVision L2251P has display included.

Internal memory
- Aspire M7811-047:8 GB
- ThinkCentre M90 SFF + ThinkVision L2251P:2 GB
Memory layout (slots x size)
- Aspire M7811-047:4 x 2 GB
- ThinkCentre M90 SFF + ThinkVision L2251P:1 x 2 GB
Total storage capacity
- Aspire M7811-047:1 TB
- ThinkCentre M90 SFF + ThinkVision L2251P:320 GB
HDD speed
- Aspire M7811-047:5400 RPM
- ThinkCentre M90 SFF + ThinkVision L2251P:7200 RPM
Wi-Fi
- Aspire M7811-047:Yes
- ThinkCentre M90 SFF + ThinkVision L2251P:No
HDMI ports quantity
- Aspire M7811-047:1
- ThinkCentre M90 SFF + ThinkVision L2251P:0
Headphone outputs
- Aspire M7811-047:1
- ThinkCentre M90 SFF + ThinkVision L2251P:2
Firewire (IEEE 1394) ports
- Aspire M7811-047:2
- ThinkCentre M90 SFF + ThinkVision L2251P:0

Side by side

Differences highlightedShow differences only

Comparison of Aspire M7811-047, ThinkCentre M90 SFF + ThinkVision L2251P
142 specifications	A Acer Aspire M7811-047 View product	B Lenovo ThinkCentre M90 SFF + ThinkVision L2251P View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i3	Intel® Core™ i3
Processor generation	Intel® Core™ i3	Intel® Core™ i3
Processor model	i3-530	i3-530
Processor cores	2	2
Processor threads	4	4
Processor frequency	2.93 GHz	2.93 GHz
Processor cache	4 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI	DMI
FSB Parity	No	No
System bus rate	2.5 GT/s	2.5 GT/s
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i3-500 Desktop Series	Intel Core i3-500 Desktop Series
Processor codename	Clarkdale	Clarkdale
Thermal Design Power (TDP)	73 W	73 W
Tcase	72.6 °C	72.6 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8	1x16, 2x8
PCI Express slots version	2.0	2.0
Number of processors installedKnown for one	Unknown — not stated by the source	1
Processor socket	LGA 1156 (Socket H)	LGA 1156 (Socket H)
Number of Processing Die Transistors	382 M	382 M
Processing Die size	81 mm²	81 mm²
CPU multiplier (bus/core ratio)	22	22
Stepping	C2	C2
Maximum internal memory supported by processor	16 GB	16 GB
Memory types supported by processor	DDR3 1066/1333	DDR3 1066/1333
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	8 GB	2 GB
Maximum internal memory	8 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	4 x 2 GB	1 x 2 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storage2 differ
Total storage capacityDiffers	1 TB	320 GB
HDD interface	SATA II	SATA II
HDD speedDiffers	5400 RPM	7200 RPM
Card reader integrated	Yes	Yes
Floppy drive installed	No	No
Optical drive typeKnown for one	DVD-RW	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	Yes	Yes
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics	Intel® HD Graphics
Number of displays supported (on-board graphics)	2	2
On-board graphics card base frequency	733 MHz	733 MHz
Discrete graphics card modelKnown for one	NVIDIA® GeForce® GT 320	Unknown — not stated by the source
Discrete graphics card memoryKnown for one	1 GB	Unknown — not stated by the source
Maximum graphics card memoryKnown for one	2.431 GB	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
Motherboard chipsetKnown for one	Intel® H57 Express	Unknown — not stated by the source
Audio output channelsKnown for one	7.1 channels	Unknown — not stated by the source
Network1 differ
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	1000 Mbit/s
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Wi-FiDiffers	Yes	No
Wake-on-LAN ready	Yes	Yes
Networking featuresKnown for one	Gigabit Ethernet, WLAN	Unknown — not stated by the source
Wireless technologyKnown for one	802.11 n	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantity	8	8
HDMI ports quantityDiffers	1	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputsDiffers	1	2
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	Yes	Yes
PS/2 ports quantity	2	2
Firewire (IEEE 1394) portsDiffers	2	0
Serial ports quantity	0	0
Parallel ports quantity	0	0
eSATA ports quantityKnown for one	2	Unknown — not stated by the source
S/PDIF out portKnown for one	Yes	Unknown — not stated by the source
Expansion slotsidentical
PCI Express x16 slots	1	1
PCI slotsKnown for one	Unknown — not stated by the source	1
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
PCI Express x4 slotsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	750 W	240 W
Power managementKnown for one	Unknown — not stated by the source	ACPI
Design1 differ
Chassis typeDiffers	Tower	SFF
Product colour	Black	Black
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Optional operating system suppliedKnown for one	Unknown — not stated by the source	Windows XP Professional
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Trial softwareKnown for one	- Microsoft Office 2007 + Microsoft Works 8.5 - McAfee Internet Security Suite 2009	Unknown — not stated by the source
Bundled softwareKnown for one	- Acer Arcade Deluxe - Acer eRecovery Management - Adobe Reader - eSobi - MyWinLocker - Nero 9 Essentials - Oberon GameZone	Unknown — not stated by the source
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	55.9 cm (22")
Display resolutionKnown for one	Unknown — not stated by the source	1680 x 1050 pixels
Contrast ratio (typical)Known for one	Unknown — not stated by the source	1000:1
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	170°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	160°
Processor special featuresidentical
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	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	No	No
Intel Flex Memory Access	No	No
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® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)	36 bit	36 bit
Processor ARK ID	46472	46472
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction sets	SSE4.2	SSE4.2
Thermal Monitoring Technologies	No	No
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Quick Sync Video Technology	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Audio1 differ
Audio systemDiffers	High Definition Audio	HDA
Weight & dimensions3 differ
WidthDiffers	185 mm	317 mm
DepthDiffers	456 mm	99 mm
HeightDiffers	416 mm	355 mm
WeightKnown for one	Unknown — not stated by the source	7.5 kg
Packaging contentidentical
Remote control included	No	No
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
TV tuner integrated	No	No
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional

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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