Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51 P4 531 HT 3.0GHz vs Lenovo ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*)

34specifications compared
12differ
22identical
52known for one product only

Key differences

Internal memory
- ThinkCentre A51 P4 531 HT 3.0GHz:0.25 GB
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):0.5 GB
Total storage capacity
- ThinkCentre A51 P4 531 HT 3.0GHz:80 GB
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):160 GB
Optical drive type
- ThinkCentre A51 P4 531 HT 3.0GHz:DVD-ROM
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):DVD-RW
Power supply
- ThinkCentre A51 P4 531 HT 3.0GHz:310 W
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):250 W
Chassis type
- ThinkCentre A51 P4 531 HT 3.0GHz:Desktop
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):Tower
Audio system
- ThinkCentre A51 P4 531 HT 3.0GHz:SoundMAX Cadenza
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):ADI 1891 HD
Width
- ThinkCentre A51 P4 531 HT 3.0GHz:442 mm
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):180 mm
Depth
- ThinkCentre A51 P4 531 HT 3.0GHz:401 mm
- ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*):458 mm

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A51 P4 531 HT 3.0GHz, ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*)
86 specifications	A Lenovo ThinkCentre A51 P4 531 HT 3.0GHz View product	B Lenovo ThinkCentre E50 P4 3.0 (630) 512MB 160GB XPP ML TS (*)View product
Processoridentical
Processor modelKnown for one	Unknown — not stated by the source	630
Processor coresKnown for one	Unknown — not stated by the source	1
Processor threadsKnown for one	Unknown — not stated by the source	2
Processor cacheKnown for one	Unknown — not stated by the source	2 MB
Processor cache typeKnown for one	Unknown — not stated by the source	L2
Bus typeKnown for one	Unknown — not stated by the source	FSB
FSB ParityKnown for one	Unknown — not stated by the source	No
Processor lithographyKnown for one	Unknown — not stated by the source	90 nm
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Pentium 4 600 Series supporting Hyper-Threading Technology
Processor codenameKnown for one	Unknown — not stated by the source	Prescott
Thermal Design Power (TDP)Known for one	Unknown — not stated by the source	84 W
TcaseKnown for one	Unknown — not stated by the source	66.6 °C
Processor socketKnown for one	Unknown — not stated by the source	LGA 775 (Socket T)
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	169 M
Processing Die sizeKnown for one	Unknown — not stated by the source	135 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	15
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Memory1 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Storage2 differ
Total storage capacityDiffers	80 GB	160 GB
Optical drive typeDiffers	DVD-ROM	DVD-RW
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Power1 differ
Power supplyDiffers	310 W	250 W
Design1 differ
Chassis typeDiffers	Desktop	Tower
Software1 differ
Bundled softwareDiffers	Access program, ThinkVantage Rescue and Recovery with Rapid Restore, Norton AntiVirus 2005 with 90 days of virus definition upgrades, PC Doctor diagnostics	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium edition (license), Access program, Norton AntiVirus 2005 with 90 days of virus definition upgrades, PC Doctor diagnostics, ThinkVantage Rescue and Recovery
Processor special featuresidentical
Embedded options availableKnown for one	Unknown — not stated by the source	No
Enhanced Intel SpeedStep TechnologyKnown for one	Unknown — not stated by the source	Yes
Execute Disable BitKnown for one	Unknown — not stated by the source	Yes
Idle StatesKnown for one	Unknown — not stated by the source	No
Intel 64Known for one	Unknown — not stated by the source	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	No
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	No
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	No
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology (VT-x)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Insider™Known for one	Unknown — not stated by the source	No
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Processor ARK IDKnown for one	Unknown — not stated by the source	27478
Processor package sizeKnown for one	Unknown — not stated by the source	37.5 x 37.5 mm
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	Yes
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Audio1 differ
Audio systemDiffers	SoundMAX Cadenza	ADI 1891 HD
Weight & dimensions4 differ
WidthDiffers	442 mm	180 mm
DepthDiffers	401 mm	458 mm
HeightDiffers	146 mm	374 mm
WeightDiffers	14 kg	8.3 kg
Other features1 differ
Security featuresDiffers	-Boot sequence control -Diskette boot inhibit -Configuration password -Boot without keyboard or mouse -U-Bolt anchoring feature -Serial port I/O control -Power on password -Security slot (for attachment of optional cable lock) -Diskette I/O control -Hardfile I/O control -Parallel port I/O control	-Security slot (for attachment of optional cable lock) -Serial port I/O control -U-Bolt anchoring feature -Boot sequence control -Boot without keyboard or mouse -Configuration password -Diskette boot inhibit -Diskette I/O control -Hardfile I/O control -Parallel port I/O control -ower on password
Optical driveidentical
DVD read speedKnown for one	16x	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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