Product comparison · 2 pcs/workstations

Lenovo ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400 vs Lenovo ThinkCentre A55+T31HNEU

109specifications compared
41differ
68identical
19known for one product only

Key differences

Processor model
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:E7400
- ThinkCentre A55+T31HNEU:E4500
Processor frequency
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:2.8 GHz
- ThinkCentre A55+T31HNEU:2.2 GHz
Processor cache
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:3 MB
- ThinkCentre A55+T31HNEU:2 MB
Processor front side bus
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:1066 MHz
- ThinkCentre A55+T31HNEU:800 MHz
Processor lithography
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:45 nm
- ThinkCentre A55+T31HNEU:65 nm
Processor codename
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:Wolfdale
- ThinkCentre A55+T31HNEU:Conroe
Tcase
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:74.1 °C
- ThinkCentre A55+T31HNEU:73.3 °C
Number of Processing Die Transistors
- ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400:228 M
- ThinkCentre A55+T31HNEU:167 M

Side by side

Differences highlightedShow differences only

Comparison of SJCACFR+T72HNEU, ThinkCentre A55+T31HNEU
128 specifications	A Lenovo ThinkCentre SJCACFR+T72HNEU PC Intel® Core™2 Duo E7400 Model SJCACFR+T72HNEU View product	B Lenovo ThinkCentre A55+T31HNEU View product
Processor12 differ
Processor modelDiffers	E7400	E4500
Processor frequencyDiffers	2.8 GHz	2.2 GHz
Processor cacheDiffers	3 MB	2 MB
Processor front side busDiffers	1066 MHz	800 MHz
Processor lithographyDiffers	45 nm	65 nm
Processor seriesDiffers	Intel Core 2 Duo E7000 Series	Intel Core 2 Duo E4000 Series
Processor codenameDiffers	Wolfdale	Conroe
TcaseDiffers	74.1 °C	73.3 °C
Number of processors installedKnown for one	Unknown — not stated by the source	1
Number of Processing Die TransistorsDiffers	228 M	167 M
Processing Die sizeDiffers	82 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	10.5	11
Processor core voltage (AC)Known for one	Unknown — not stated by the source	0.85 - 1.5 V
SteppingDiffers	R0	M0
Memory5 differ
Internal memoryDiffers	2 GB	1 GB
Maximum internal memoryDiffers	8 GB	4 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Differs	1 x 2 GB	1 x 1 GB
Memory slotsKnown for one	Unknown — not stated by the source	2x DIMM
Memory clock speedDiffers	1066 MHz	667 MHz
Storage1 differ
Total storage capacityDiffers	320 GB	160 GB
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
Drive device, transfer rateKnown for one	Unknown — not stated by the source	300 MB/s
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 4500M	Intel® GMA 3000
Graphics card RAMDACKnown for one	Unknown — not stated by the source	400 MHz
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.256 GB
Network1 differ
Ethernet LAN data ratesDiffers	1000 Mbit/s	10,100,1000 Mbit/s
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	8	6
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
PS/2 ports quantityDiffers	0	2
Serial ports quantityDiffers	0	1
Parallel ports quantityDiffers	0	1
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
Expansion slots1 differ
PCI Express x1 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 slotsKnown for one	Unknown — not stated by the source	1
PCI slotsDiffers	1	2
Power1 differ
Power supplyDiffers	130 W	280 W
Designidentical
Chassis typeKnown for one	Unknown — not stated by the source	Tower
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Software1 differ
Bundled softwareDiffers	Adobe Acrobat Reader Roxio Creator Business Edition Intervideo WinDVD PC-Doctor Sun JRE ThinkVantage Fingerprint Software ThinkVantage Productivity Center ThinkVantage Rescue and Recovery ThinkVantage System Update ThinkVantage System Migration Assistant ThinkVantage Client Security Solution ThinkVa	Rescue & Recovery Client Security Solution Multimedia Center Think Offerings Sonic RecordNow & Drive Letter Access InterVideo WinDVD
Trial softwareKnown for one	Microsoft Office 2007 McAfee VirusScan Plus	Unknown — not stated by the source
Display5 differ
Display diagonalDiffers	55.9 cm (22")	48.3 cm (19")
Display resolutionDiffers	1680 x 1050 pixels	1280 x 1024 pixels
Contrast ratio (typical)Differs	1000:1	800:1
Display brightnessDiffers	250 cd/m²	300 cd/m²
Viewing angle, horizontalDiffers	170°	160°
Processor special features4 differ
Embedded options availableDiffers	Yes	No
Intel Virtualization Technology (VT-x)Differs	2	No
Processor ARK IDDiffers	36500	30781
Processor codeDiffers	SLB9Y	SLA95
Audio1 differ
Audio systemDiffers	High Definition Audio	AD1986A
Weight & dimensions4 differ
WidthDiffers	238 mm	175 mm
DepthDiffers	275 mm	424 mm
HeightDiffers	80 mm	410 mm
WeightDiffers	4.18 kg	10 kg
Certificatesidentical
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Other featuresidentical
Intel segment taggingKnown for one	Enterprise, Professional	Unknown — not stated by the source

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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