Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51p P4 3.2GHz vs Lenovo ThinkCentre M51 P4 530HT 512MB 80GB XPP

32specifications compared
6differ
26identical
57known for one product only

Key differences

Processor frequency
- ThinkCentre A51p P4 3.2GHz:3.2 GHz
- ThinkCentre M51 P4 530HT 512MB 80GB XPP:1.73 GHz
Internal memory
- ThinkCentre A51p P4 3.2GHz:0.25 GB
- ThinkCentre M51 P4 530HT 512MB 80GB XPP:0.5 GB
Internal memory type
- ThinkCentre A51p P4 3.2GHz:DDR2-SDRAM
- ThinkCentre M51 P4 530HT 512MB 80GB XPP:DDR-SDRAM
Chassis type
- ThinkCentre A51p P4 3.2GHz:Tower
- ThinkCentre M51 P4 530HT 512MB 80GB XPP:Desktop

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A51p P4 3.2GHz, ThinkCentre M51 P4 530HT 512MB 80GB XPP
89 specifications	A Lenovo ThinkCentre A51p P4 3.2GHz View product	B Lenovo ThinkCentre M51 P4 530HT 512MB 80GB XPP View product
Processor1 differ
Processor modelKnown for one	Unknown — not stated by the source	530
Processor coresKnown for one	Unknown — not stated by the source	1
Processor threadsKnown for one	Unknown — not stated by the source	1
Processor frequencyDiffers	3.2 GHz	1.73 GHz
Processor cacheKnown for one	Unknown — not stated by the source	1 MB
Processor cache typeKnown for one	Unknown — not stated by the source	L2
Processor front side busKnown for one	Unknown — not stated by the source	533 MHz
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	65 nm
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor codenameKnown for one	Unknown — not stated by the source	Merom
Thermal Design Power (TDP)Known for one	Unknown — not stated by the source	27 W
TcaseKnown for one	Unknown — not stated by the source	67.7 °C
TjunctionKnown for one	Unknown — not stated by the source	100 °C
Processor socketKnown for one	Unknown — not stated by the source	Socket AM2
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	291 M
Processing Die sizeKnown for one	Unknown — not stated by the source	143 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	14
Processor core voltage (AC)Known for one	Unknown — not stated by the source	0.95 - 1.30 V
SteppingKnown for one	Unknown — not stated by the source	A1
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Memory2 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR-SDRAM
Storageidentical
Storage drive typeKnown for one	Unknown — not stated by the source	SATA
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Tower	Desktop
Software1 differ
Bundled softwareDiffers	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium (license), Lotus SmartSuite Millennium, Access program, IBM Director Agent (web deliverable), ThinkVantage Client Security Software (web-downloadable), Norton AntiVirus 2004 OEM Version, PC Doctor diagnostics, ThinkVantage Rescue	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium (license), Norton AntiVirus 2004, PC Doctor diagnostics, Access Program, ThinkVantage Client Security Solution, ThinkVantage Rescue and Recovery with Rapid Restore, IBM Director Agent (web deliverable)
Processor special featuresidentical
Embedded options availableKnown for one	Unknown — not stated by the source	Yes
Enhanced Intel SpeedStep TechnologyKnown for one	Unknown — not stated by the source	No
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	29733
Processor codeKnown for one	Unknown — not stated by the source	SLA2G
Processor package sizeKnown for one	Unknown — not stated by the source	35 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	No
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
Other features1 differ
Security featuresDiffers	-Diskette I/O control -Boot without keyboard or mouse -Configuration password -Diskette boot inhibit -Boot sequence control -Parallel port I/O control -Power on password -Secure Data Disposal -Serial port I/O control -Kensington Lock Standard Enabled -Hardfile I/O control -Embedded Security Subsyste	-Parallel port I/O control -Hard drive I/O control -Padlock loop -Configuration password -Diskette Boot inhibit -Diskette I/O control -Hard disk drive password -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -Boot without keyboard or mouse
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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