Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A55+T22HNEU vs Lenovo ThinkCentre A55+T31HNEU

124specifications compared
5differ
119identical
2known for one product only

Key differences

Display diagonal
- ThinkCentre A55+T22HNEU:55.9 cm (22")
- ThinkCentre A55+T31HNEU:48.3 cm (19")
Display resolution
- ThinkCentre A55+T22HNEU:1680 x 1050 pixels
- ThinkCentre A55+T31HNEU:1280 x 1024 pixels
Contrast ratio (typical)
- ThinkCentre A55+T22HNEU:700:1
- ThinkCentre A55+T31HNEU:800:1
Viewing angle, horizontal
- ThinkCentre A55+T22HNEU:176°
- ThinkCentre A55+T31HNEU:160°
Viewing angle, vertical
- ThinkCentre A55+T22HNEU:176°
- ThinkCentre A55+T31HNEU:160°

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A55+T22HNEU, ThinkCentre A55+T31HNEU
126 specifications	A Lenovo ThinkCentre A55+T22HNEU View product	B Lenovo ThinkCentre A55+T31HNEU View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor model	E4500	E4500
Processor cores	2	2
Processor threads	2	2
Processor frequency	2.2 GHz	2.2 GHz
Processor cache	2 MB	2 MB
Processor cache type	L2	L2
Processor front side bus	800 MHz	800 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core 2 Duo E4000 Series	Intel Core 2 Duo E4000 Series
Processor codename	Conroe	Conroe
Thermal Design Power (TDP)	65 W	65 W
Tcase	73.3 °C	73.3 °C
Number of processors installed	1	1
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die Transistors	167 M	167 M
Processing Die size	111 mm²	111 mm²
CPU multiplier (bus/core ratio)	11	11
Platform	PC	PC
Processor core voltage (AC)	0.85 - 1.5 V	0.85 - 1.5 V
Stepping	M0	M0
ECC supported by processor	No	No
Memoryidentical
Internal memory	1 GB	1 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)	1 x 1 GB	1 x 1 GB
Memory slots	2x DIMM	2x DIMM
Memory clock speed	667 MHz	667 MHz
Storageidentical
Total storage capacity	160 GB	160 GB
Optical drive type	DVD-RW	DVD-RW
Number of HDDs installed	1	1
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
Drive device, transfer rate	300 MB/s	300 MB/s
Floppy drive installed	No	No
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card model	Intel® GMA 3000	Intel® GMA 3000
Maximum graphics card memory	0.256 GB	0.256 GB
Graphics card family	Intel	Intel
Graphics card RAMDACKnown for one	Unknown — not stated by the source	400 MHz
Performanceidentical
Product type	PC	PC
Password protection type	BIOS	BIOS
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Wi-Fi	No	No
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	6	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	No	No
PS/2 ports quantity	2	2
Firewire (IEEE 1394) ports	0	0
Serial ports quantity	1	1
Parallel ports quantity	1	1
Expansion slotsidentical
PCI Express x1 slots	1	1
PCI Express x16 slots	1	1
PCI slots	2	2
Poweridentical
Power supply	280 W	280 W
Designidentical
Chassis type	Tower	Tower
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Product colour	Black	Black
Softwareidentical
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled software	Rescue & Recovery Client Security Solution Multimedia Center Think Offerings Sonic RecordNow & Drive Letter Access InterVideo WinDVD	Rescue & Recovery Client Security Solution Multimedia Center Think Offerings Sonic RecordNow & Drive Letter Access InterVideo WinDVD
Display5 differ
Display included	Yes	Yes
Display diagonalDiffers	55.9 cm (22")	48.3 cm (19")
Display resolutionDiffers	1680 x 1050 pixels	1280 x 1024 pixels
Native aspect ratioKnown for one	16:10	Unknown — not stated by the source
Contrast ratio (typical)Differs	700:1	800:1
Touchscreen	No	No
Display brightness	300 cd/m²	300 cd/m²
Viewing angle, horizontalDiffers	176°	160°
Viewing angle, verticalDiffers	176°	160°
Display	TFT	TFT
Processor special featuresidentical
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
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	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	No	No
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)	No	No
Intel Virtualization Technology (VT-x)	No	No
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)	No	No
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
Processor ARK ID	30781	30781
Processor code	SLA95	SLA95
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
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
Audioidentical
Audio system	AD1986A	AD1986A
Weight & dimensionsidentical
Width	175 mm	175 mm
Depth	424 mm	424 mm
Height	410 mm	410 mm
Weight	10 kg	10 kg
Packaging contentidentical
Remote control included	No	No
Certificatesidentical
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Other featuresidentical
TV tuner integrated	No	No

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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