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The Lenovo ThinkCentre M81 is an entry-level PC designed for general computing tasks. It features an Intel Core i3 processor from the Sandy Bridge generation, operating at 3.3 GHz with two cores and four threads. This processor supports up to 64-bit operation and has a thermal design power (TDP) of 65 W.

The system memory consists of DDR3 SDRAM running at 1333 MHz in dual-channel configuration, providing a maximum internal memory capacity of 16 GB. The storage capacity includes one hard disk drive (HDD) with a capacity of 500 GB and a rotational speed of 7200 RPM, formatted as SATA. There are no additional expansion slots for discrete graphics cards; instead, it comes equipped with on-board Intel HD Graphics 2000, which offers integrated performance suitable for basic multimedia applications.

TheThinkCentre M81 operates under Windows 7 Professional, supporting both x86 and x64 architectures. With its compact tower chassis and lightweight build, this PC provides reliable performance for everyday use without requiring advanced technical expertise. Its specifications make it ideal for users who need a balance between cost-effective hardware and sufficient processing capabilities for typical office workloads.

Main characteristics

  • Model: Lenovo ThinkCentre M81 Intel® Core™ i3 i3-2120 4 GB DDR3-SDRAM 500 GB HDD Windows 7 Professional Tower PC Black
  • Processor: i3-2120
  • CPU frequency: 3.3 GHz
  • sku: 7517D1S
  • Processor family: Intel® Core™ i3
  • Processor manufacturer: Intel
  • Processor generation: 2nd gen Intel® Core™ i3
  • Processor cores: 2

Additional information

Processor family

Intel® Core™ i3

Processor manufacturer

Intel

Processor model

i3-2120

Processor frequency

3.3 GHz

Processor generation

2nd gen Intel® Core™ i3

Processor cores

2

Processor threads

4

Processor socket

LGA 1155 (Socket H2)

Processor cache

3 MB

Processor cache type

Smart Cache

System bus rate

5 GT/s

Bus type

DMI

Processor lithography

32 nm

Processor operating modes

64-bit

Processor codename

Sandy Bridge

Thermal Design Power (TDP)

65 W

Tcase

69.1 °C

PCI Express slots version

2.0

Maximum number of PCI Express lanes

16

Number of processors installed

1

CPU multiplier (bus/core ratio)

33

Maximum internal memory supported by processor

32 GB

Memory bandwidth supported by processor (max)

21 GB/s

Internal memory

4 GB

Maximum internal memory

16 GB

Internal memory type

DDR3-SDRAM

Memory slots

4x DIMM

Memory clock speed

1333 MHz

Memory channels

Dual-channel

Total storage capacity

500 GB

Optical drive type

DVD±RW

Storage media

HDD

Number of storage drives installed

1

Number of HDDs installed

1

HDD capacity

500 GB

HDD interface

SATA

HDD speed

7200 RPM

HDD size

3.5"

Card reader integrated

No

RAID support

Yes

RAID levels

0, 1

Discrete graphics card

No

On-board graphics card

Yes

Discrete graphics card model

Not available

On-board graphics card model

Intel® HD Graphics 2000

On-board graphics card family

Intel® HD Graphics

On-board graphics card base frequency

850 MHz

On-board graphics card dynamic frequency (max)

1100 MHz

Number of displays supported (on-board graphics)

2

On-board graphics card ID

0x102

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