Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51p P4 530 3000 2x256MB 160GB vs Lenovo ThinkCentre S51 P4 3000 512MB 40GB XPP

84specifications compared
13differ
71identical
7known for one product only

Key differences

The Lenovo ThinkCentre A51p P4 530 3000 2x256MB 160GB has 2 GB more maximum internal memory than the Lenovo ThinkCentre S51 P4 3000 512MB 40GB XPP (4 GB vs 2 GB). The Lenovo ThinkCentre A51p P4 530 3000 2x256MB 160GB has 120 GB more total storage capacity than the Lenovo ThinkCentre S51 P4 3000 512MB 40GB XPP (160 GB vs 40 GB). The Lenovo ThinkCentre A51p P4 530 3000 2x256MB 160GB has 85 W more power supply than the Lenovo ThinkCentre S51 P4 3000 512MB 40GB XPP (310 W vs 225 W). Internal memory type: DDR2-SDRAM on the Lenovo ThinkCentre A51p P4 530 3000 2x256MB 160GB, DDR-SDRAM on the Lenovo ThinkCentre S51 P4 3000 512MB 40GB XPP. Optical drive type: DVD-RW on the Lenovo ThinkCentre A51p P4 530 3000 2x256MB 160GB, CD-ROM on the Lenovo ThinkCentre S51 P4 3000 512MB 40GB XPP.

Maximum internal memory
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:4 GB
- ThinkCentre S51 P4 3000 512MB 40GB XPP:2 GB
Internal memory type
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:DDR2-SDRAM
- ThinkCentre S51 P4 3000 512MB 40GB XPP:DDR-SDRAM
Total storage capacity
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:160 GB
- ThinkCentre S51 P4 3000 512MB 40GB XPP:40 GB
Optical drive type
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:DVD-RW
- ThinkCentre S51 P4 3000 512MB 40GB XPP:CD-ROM
Discrete graphics card model
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:AMD Radeon X600 Pro
- ThinkCentre S51 P4 3000 512MB 40GB XPP:Intel® GMA 900
Power supply
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:310 W
- ThinkCentre S51 P4 3000 512MB 40GB XPP:225 W
Chassis type
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:Tower
- ThinkCentre S51 P4 3000 512MB 40GB XPP:SFF
Operating system installed
- ThinkCentre A51p P4 530 3000 2x256MB 160GB:Windows XP Home Edition
- ThinkCentre S51 P4 3000 512MB 40GB XPP:Windows XP Professional

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A51p P4 530 3000 2x256MB 160GB, ThinkCentre S51 P4 3000 512MB 40GB XPP
91 specifications	A Lenovo ThinkCentre A51p P4 530 3000 2x256MB 160GB View product	B Lenovo ThinkCentre S51 P4 3000 512MB 40GB XPP View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Pentium® 4	Intel® Pentium® 4
Processor model	530	530
Processor cores	1	1
Processor threads	1	1
Processor frequency	1.73 GHz	1.73 GHz
Processor cache	1 MB	1 MB
Processor cache type	L2	L2
Processor front side bus	533 MHz	533 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor codename	Merom	Merom
Thermal Design Power (TDP)	27 W	27 W
Tcase	67.7 °C	67.7 °C
Tjunction	100 °C	100 °C
Processor socket	Socket AM2	Socket AM2
Number of Processing Die Transistors	291 M	291 M
Processing Die size	143 mm²	143 mm²
CPU multiplier (bus/core ratio)	14	14
Processor core voltage (AC)	0.95 - 1.30 V	0.95 - 1.30 V
Stepping	A1	A1
ECC supported by processor	No	No
Memory2 differ
Internal memory	0.5 GB	0.5 GB
Maximum internal memoryDiffers	4 GB	2 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR-SDRAM
Storage2 differ
Total storage capacityDiffers	160 GB	40 GB
Optical drive typeDiffers	DVD-RW	CD-ROM
Storage drive typeKnown for one	SATA	Unknown — not stated by the source
Diskette drive memory	1.44 MB	1.44 MB
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
Graphics1 differ
Discrete graphics card modelDiffers	AMD Radeon X600 Pro	Intel® GMA 900
Video adapter, bus	PCI Express	PCI Express
Performanceidentical
Product type	PC	PC
Networkidentical
Networking features	Ethernet/Fast Ethernet/Gigabit Ethernet	Ethernet/Fast Ethernet/Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	8	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantity	2	2
Firewire (IEEE 1394) portsKnown for one	1	Unknown — not stated by the source
Parallel ports quantity	1	1
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supply typeKnown for one	110~220V	Unknown — not stated by the source
Power supplyDiffers	310 W	225 W
Design1 differ
Chassis typeDiffers	Tower	SFF
Software1 differ
Operating system installedDiffers	Windows XP Home Edition	Windows XP Professional
Bundled softwareKnown for one	Unknown — not stated by the source	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)
Displayidentical
Display included	No	No
Processor special featuresidentical
Embedded options available	Yes	Yes
Enhanced Intel SpeedStep Technology	No	No
Execute Disable Bit	Yes	Yes
Idle States	No	No
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	No	No
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	29733	29733
Processor code	SLA2G	SLA2G
Processor package size	35 mm	35 mm
Thermal Monitoring Technologies	No	No
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	SoundMAX Cadenza	SoundMAX Cadenza
Weight & dimensions4 differ
WidthDiffers	175 mm	127 mm
DepthDiffers	450 mm	390 mm
HeightDiffers	492 mm	346 mm
WeightDiffers	13.5 kg	8.5 kg
Other features1 differ
Security featuresDiffers	-Configuration password -Diskette boot inhibit -Boot sequence control -Boot without keyboard or mouse -Diskette I/O control -Embedded Security Subsystem standard -Hard disk drive password -Hardfile I/O control -Secure Data Disposal -Serial port I/O control -Kensington Lock Standard Enabled -Parallel	-U-Bolt anchoring feature -Serial port I/O control -Security slot (for attachment of optional cable lock) -Power on password -Boot without keyboard or mouse -Configuration password -Parallel port I/O control -Diskette Boot inhibit -Diskette I/O control -Hard disk drive password -Hard drive I/O contr
Optical driveidentical
CD read speedKnown for one	Unknown — not stated by the source	48x

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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