Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51p Intel® Pentium® 4 530 vs Lenovo ThinkCentre A55 + ThinkVision L193p

80specifications compared
36differ
44identical
25known for one product only

Key differences

Processor family
- ThinkCentre A51p Intel® Pentium® 4 530:Intel® Pentium® 4
- ThinkCentre A55 + ThinkVision L193p:Intel® Core™2 Duo
Processor model
- ThinkCentre A51p Intel® Pentium® 4 530:530
- ThinkCentre A55 + ThinkVision L193p:E4500
Processor cores
- ThinkCentre A51p Intel® Pentium® 4 530:1
- ThinkCentre A55 + ThinkVision L193p:2
Processor threads
- ThinkCentre A51p Intel® Pentium® 4 530:1
- ThinkCentre A55 + ThinkVision L193p:2
Processor frequency
- ThinkCentre A51p Intel® Pentium® 4 530:1.73 GHz
- ThinkCentre A55 + ThinkVision L193p:2.2 GHz
Processor cache
- ThinkCentre A51p Intel® Pentium® 4 530:1 MB
- ThinkCentre A55 + ThinkVision L193p:2 MB
Processor front side bus
- ThinkCentre A51p Intel® Pentium® 4 530:533 MHz
- ThinkCentre A55 + ThinkVision L193p:800 MHz
Processor codename
- ThinkCentre A51p Intel® Pentium® 4 530:Merom
- ThinkCentre A55 + ThinkVision L193p:Conroe

Side by side

Differences highlightedShow differences only

Comparison of A51p, ThinkCentre A55 + ThinkVision L193p
105 specifications	A Lenovo ThinkCentre A51p Intel® Pentium® 4 530 Model A51p View product	B Lenovo ThinkCentre A55 + ThinkVision L193p View product
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium® 4	Intel® Core™2 Duo
Processor modelDiffers	530	E4500
Processor coresDiffers	1	2
Processor threadsDiffers	1	2
Processor frequencyDiffers	1.73 GHz	2.2 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 lithography	65 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor codenameDiffers	Merom	Conroe
Thermal Design Power (TDP)Differs	27 W	65 W
TcaseDiffers	67.7 °C	73.3 °C
TjunctionKnown for one	100 °C	Unknown — not stated by the source
Processor socketDiffers	Socket AM2	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	291 M	167 M
Processing Die sizeDiffers	143 mm²	111 mm²
CPU multiplier (bus/core ratio)Differs	14	11
Processor core voltage (AC)Differs	0.95 - 1.30 V	0.85 - 1.5 V
SteppingDiffers	A1	M0
ECC supported by processor	No	No
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core 2 Duo E4000 Series
Memory1 differ
Internal memoryDiffers	0.5 GB	1 GB
Maximum internal memory	4 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory slotsKnown for one	Unknown — not stated by the source	2x DIMM
Storageidentical
Total storage capacity	160 GB	160 GB
Diskette drive memoryKnown for one	1.44 MB	Unknown — not stated by the source
Optical drive typeKnown for one	Unknown — not stated by the source	DVD±RW
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA 900	Intel® GMA 3000
Video adapter resolutionKnown for one	2048x1536 16777216 colors	Unknown — not stated by the source
Video adapter, busKnown for one	PCI Express	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet/Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
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
DVI portKnown for one	No	Unknown — not stated by the source
PS/2 ports quantity	2	2
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
S/PDIF out portKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	No	Unknown — not stated by the source
TV-outKnown for one	No	Unknown — not stated by the source
Serial ports quantityDiffers	0	1
Parallel ports quantity	1	1
Modem (RJ-11) portsKnown for one	0	Unknown — not stated by the source
USB 1.1 ports quantityKnown for one	0	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	310 W	225 W
Design1 differ
Chassis typeDiffers	Tower	SFF
Softwareidentical
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled softwareKnown for one	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	Unknown — not stated by the source
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	48.3 cm (19")
Display resolutionKnown for one	Unknown — not stated by the source	1280 x 1024 pixels
Contrast ratio (typical)Known for one	Unknown — not stated by the source	800:1
Display brightnessKnown for one	Unknown — not stated by the source	300 cd/m²
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	160°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	160°
DisplayKnown for one	Unknown — not stated by the source	TFT
Processor special features8 differ
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep TechnologyDiffers	No	Yes
Execute Disable Bit	Yes	Yes
Idle StatesDiffers	No	Yes
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 StateDiffers	No	Yes
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	30781
Processor codeDiffers	SLA2G	SLA95
Processor package sizeDiffers	35 mm	37.5 x 37.5 mm
Thermal Monitoring TechnologiesDiffers	No	Yes
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
Audio1 differ
Audio systemDiffers	SoundMAX Cadenza	ADI 1986 A
Weight & dimensions4 differ
WidthDiffers	175 mm	310 mm
DepthDiffers	450 mm	358 mm
HeightDiffers	492 mm	85 mm
WeightDiffers	13.5 kg	8.5 kg
Other featuresidentical
Security featuresKnown for one	-Configuration password -Boot sequence control -Boot without keyboard or mouse -Diskette boot inhibit -Diskette I/O control -Hardfile I/O control -Kensington Lock Standard Enabled -Hard disk drive password -Embedded Security Subsystem standard -Parallel port I/O control -Serial port I/O control -Sec	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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