Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A51 P4 515 2.93GHz vs Lenovo TS ThinkCentre A51 P4 640 3.2Ghz

33specifications compared
17differ
16identical
69known for one product only

Key differences

The Lenovo TS ThinkCentre A51 P4 640 3.2Ghz has 0.27 GHz more processor frequency than the Lenovo ThinkCentre A51 P4 515 2.93GHz (3.2 GHz vs 2.93 GHz). The Lenovo TS ThinkCentre A51 P4 640 3.2Ghz has 267 MHz more processor front side bus than the Lenovo ThinkCentre A51 P4 515 2.93GHz (800 MHz vs 533 MHz). The Lenovo TS ThinkCentre A51 P4 640 3.2Ghz has 0.25 GB more internal memory than the Lenovo ThinkCentre A51 P4 515 2.93GHz (0.5 GB vs 0.25 GB). Internal memory type: DDR2-SDRAM on the Lenovo ThinkCentre A51 P4 515 2.93GHz, DDR-SDRAM on the Lenovo TS ThinkCentre A51 P4 640 3.2Ghz. Optical drive type: CD-ROM on the Lenovo ThinkCentre A51 P4 515 2.93GHz, DVD-ROM on the Lenovo TS ThinkCentre A51 P4 640 3.2Ghz.

Processor frequency
- ThinkCentre A51 P4 515 2.93GHz:2.93 GHz
- TS ThinkCentre A51 P4 640 3.2Ghz:3.2 GHz
Processor front side bus
- ThinkCentre A51 P4 515 2.93GHz:533 MHz
- TS ThinkCentre A51 P4 640 3.2Ghz:800 MHz
Internal memory
- ThinkCentre A51 P4 515 2.93GHz:0.25 GB
- TS ThinkCentre A51 P4 640 3.2Ghz:0.5 GB
Maximum internal memory
- ThinkCentre A51 P4 515 2.93GHz:4 GB
- TS ThinkCentre A51 P4 640 3.2Ghz:2 GB
Internal memory type
- ThinkCentre A51 P4 515 2.93GHz:DDR2-SDRAM
- TS ThinkCentre A51 P4 640 3.2Ghz:DDR-SDRAM
Total storage capacity
- ThinkCentre A51 P4 515 2.93GHz:40 GB
- TS ThinkCentre A51 P4 640 3.2Ghz:80 GB
Optical drive type
- ThinkCentre A51 P4 515 2.93GHz:CD-ROM
- TS ThinkCentre A51 P4 640 3.2Ghz:DVD-ROM
USB 2.0 ports quantity
- ThinkCentre A51 P4 515 2.93GHz:6
- TS ThinkCentre A51 P4 640 3.2Ghz:8

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre A51 P4 515 2.93GHz, TS ThinkCentre A51 P4 640 3.2Ghz
102 specifications	A Lenovo ThinkCentre A51 P4 515 2.93GHz View product	B Lenovo TS ThinkCentre A51 P4 640 3.2Ghz View product
Processor2 differ
Processor modelKnown for one	Unknown — not stated by the source	640
Processor coresKnown for one	Unknown — not stated by the source	1
Processor threadsKnown for one	Unknown — not stated by the source	2
Processor frequencyDiffers	2.93 GHz	3.2 GHz
Processor cacheKnown for one	Unknown — not stated by the source	2 MB
Processor cache typeKnown for one	Unknown — not stated by the source	L2
Processor front side busDiffers	533 MHz	800 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	90 nm
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
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
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
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	16
Processor core voltage (AC)Known for one	Unknown — not stated by the source	1.25 - 1.388 V
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	32 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	1066 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	17 GB/s
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Memory3 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Maximum internal memoryDiffers	4 GB	2 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR-SDRAM
Memory channelsKnown for one	Unknown — not stated by the source	Dual-channel
Storage2 differ
Total storage capacityDiffers	40 GB	80 GB
Optical drive typeDiffers	CD-ROM	DVD-ROM
Storage drive typeKnown for one	Unknown — not stated by the source	SATA
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
Number of displays supported (on-board graphics)Known for one	Unknown — not stated by the source	2
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	850 MHz
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	1100 MHz
Video adapter resolutionKnown for one	Unknown — not stated by the source	2048x1536 16777216 colors
Optical driveidentical
CD write speedKnown for one	Unknown — not stated by the source	48x
CD rewrite speedKnown for one	Unknown — not stated by the source	32x
DVD read speedKnown for one	Unknown — not stated by the source	16x
Network1 differ
Networking featuresDiffers	Ethernet/Fast Ethernet	Ethernet/Fast Ethernet/Gigabit Ethernet
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	6	8
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
Serial ports quantityDiffers	1	0
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
Power1 differ
Power supplyDiffers	310 W	225 W
Design1 differ
Chassis typeDiffers	Tower	SFF
Software1 differ
Bundled softwareDiffers	Lotus Notes Stand-alone Client (license), Lotus SmartSuite Millennium, Access program, Norton AntiVirus 2005 with 90 days of virus definition upgrades, PC Doctor diagnostics, ThinkVantage Rescue and Recovery with Rapid Restore	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
Processor special featuresidentical
CPU configuration (max)Known for one	Unknown — not stated by the source	1
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 Enhanced Halt StateKnown 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 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	27480
Processor package sizeKnown for one	Unknown — not stated by the source	37.5 x 37.5 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.1/4.2
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	Yes
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
Weight & dimensions3 differ
WidthDiffers	178 mm	309 mm
DepthDiffers	450 mm	359 mm
HeightDiffers	430 mm	85 mm
WeightKnown for one	Unknown — not stated by the source	8.5 kg
Other features1 differ
Security featuresDiffers	-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 -Power on password -Security slot (for attachment of optional cable lock) -Serial port I/O control -U-Bolt anchoring feature	-Serial port I/O control -U-Bolt anchoring feature -Security slot (for attachment of optional cable lock) -Parallel port I/O control -Power on password -Diskette Boot inhibit -Diskette I/O control -Hard disk drive password -Hard drive I/O control -Configuration password -Boot without keyboard or mou

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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