Product comparison · 2 pcs/workstations

Lenovo TS ThinkCentre A51 P4 531-3.0G vs Lenovo TS ThinkCentre A51 P4 630 3GHz

83specifications compared
21differ
62identical
15known for one product only

Key differences

Processor model
- TS ThinkCentre A51 P4 531-3.0G:530
- TS ThinkCentre A51 P4 630 3GHz:630
Processor threads
- TS ThinkCentre A51 P4 531-3.0G:1
- TS ThinkCentre A51 P4 630 3GHz:2
Processor frequency
- TS ThinkCentre A51 P4 531-3.0G:1.73 GHz
- TS ThinkCentre A51 P4 630 3GHz:3 GHz
Processor cache
- TS ThinkCentre A51 P4 531-3.0G:1 MB
- TS ThinkCentre A51 P4 630 3GHz:2 MB
Processor front side bus
- TS ThinkCentre A51 P4 531-3.0G:533 MHz
- TS ThinkCentre A51 P4 630 3GHz:800 MHz
Processor lithography
- TS ThinkCentre A51 P4 531-3.0G:65 nm
- TS ThinkCentre A51 P4 630 3GHz:90 nm
Processor codename
- TS ThinkCentre A51 P4 531-3.0G:Merom
- TS ThinkCentre A51 P4 630 3GHz:Prescott
Thermal Design Power (TDP)
- TS ThinkCentre A51 P4 531-3.0G:27 W
- TS ThinkCentre A51 P4 630 3GHz:84 W

Side by side

Differences highlightedShow differences only

Comparison of TS ThinkCentre A51 P4 531-3.0G, TS ThinkCentre A51 P4 630 3GHz
98 specifications	A Lenovo TS ThinkCentre A51 P4 531-3.0G View product	B Lenovo TS ThinkCentre A51 P4 630 3GHz View product
Processor13 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Pentium® 4	Intel® Pentium® 4
Processor modelDiffers	530	630
Processor cores	1	1
Processor threadsDiffers	1	2
Processor frequencyDiffers	1.73 GHz	3 GHz
Processor cacheDiffers	1 MB	2 MB
Processor cache type	L2	L2
Processor front side busDiffers	533 MHz	800 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithographyDiffers	65 nm	90 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Pentium 4 600 Series supporting Hyper-Threading Technology
Processor codenameDiffers	Merom	Prescott
Thermal Design Power (TDP)Differs	27 W	84 W
TcaseDiffers	67.7 °C	66.6 °C
Processor socketDiffers	Socket AM2	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	291 M	169 M
Processing Die sizeDiffers	143 mm²	135 mm²
CPU multiplier (bus/core ratio)Differs	14	15
ECC supported by processor	No	No
TjunctionKnown for one	100 °C	Unknown — not stated by the source
Processor core voltage (AC)Known for one	0.95 - 1.30 V	Unknown — not stated by the source
SteppingKnown for one	A1	Unknown — not stated by the source
Memoryidentical
Internal memory	0.25 GB	0.25 GB
Maximum internal memory	2 GB	2 GB
Internal memory type	DDR-SDRAM	DDR-SDRAM
Storageidentical
Total storage capacity	80 GB	80 GB
Optical drive type	DVD-ROM	DVD-ROM
Storage drive type	SATA	SATA
Diskette drive memory	1.44 MB	1.44 MB
Graphicsidentical
Discrete graphics card model	Intel® GMA 900	Intel® GMA 900
Video adapter resolution	2048x1536 16777216 colors	2048x1536 16777216 colors
Video adapter, bus	PCI Express	PCI Express
Performanceidentical
Product type	PC	PC
Optical driveidentical
DVD read speed	16x	16x
Networkidentical
Networking features	Ethernet/Fast Ethernet/Gigabit Ethernet	Ethernet/Fast Ethernet/Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI portKnown for one	Unknown — not stated by the source	No
PS/2 ports quantity	2	2
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
S/PDIF out portKnown for one	Unknown — not stated by the source	No
SmartCard slotKnown for one	Unknown — not stated by the source	No
TV-outKnown for one	Unknown — not stated by the source	No
Serial ports quantityKnown for one	Unknown — not stated by the source	0
Parallel ports quantity	1	1
Modem (RJ-11) portsKnown for one	Unknown — not stated by the source	0
USB 1.1 ports quantityKnown for one	Unknown — not stated by the source	0
I/O portsKnown for one	8x USB 2.0	Unknown — not stated by the source
Poweridentical
Power supply	225 W	225 W
Designidentical
Chassis type	SFF	SFF
Software1 differ
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled softwareDiffers	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium (license), IBM Director Agent (web deliverable), Access Program, ThinkVantage Client Security Solution, ThinkVantage Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004 OEM Version, PC Doctor diagnostics	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium (license), Access program, IBM Director Agent (web deliverable), ThinkVantage Client Security Software (web-downloadable), ThinkVantage Rescue and Recovery with Rapid Restore, Norton AntiVirus 2004 OEM Version, PC Doctor diagnosti
Displayidentical
Display included	No	No
Processor special features5 differ
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep TechnologyDiffers	No	Yes
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 IDDiffers	29733	27478
Processor package sizeDiffers	35 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	No	No
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
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
Processor codeKnown for one	SLA2G	Unknown — not stated by the source
Audioidentical
Audio system	SoundMAX Cadenza	SoundMAX Cadenza
Weight & dimensions1 differ
Width	309 mm	309 mm
Depth	359 mm	359 mm
Height	85 mm	85 mm
WeightDiffers	8.3 kg	8.5 kg
Other features1 differ
Security featuresDiffers	-Boot without keyboard or mouse -Configuration password -Diskette Boot inhibit -Diskette I/O control -Hard disk drive password -Hard drive I/O control -Parallel port I/O control -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -U-Bolt anchoring featu	-U-Bolt anchoring feature -Security slot (for attachment of optional cable lock) -Serial port I/O control -Power on password -Hard drive I/O control -Parallel port I/O control -Hard disk drive password -Diskette I/O control -Diskette Boot inhibit -Boot without keyboard or mouse -Configuration passwo

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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