Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M57p Desktop vs Lenovo ThinkStation D20

78specifications compared
46differ
32identical
47known for one product only

Key differences

Processor family
- ThinkCentre M57p Desktop:Intel® Core™2 Duo
- ThinkStation D20:Intel® Xeon® 5000 Sequence
Processor model
- ThinkCentre M57p Desktop:E8400
- ThinkStation D20:X5550
Processor cores
- ThinkCentre M57p Desktop:2
- ThinkStation D20:4
Processor threads
- ThinkCentre M57p Desktop:2
- ThinkStation D20:8
Processor frequency
- ThinkCentre M57p Desktop:3 GHz
- ThinkStation D20:2.66 GHz
Processor cache
- ThinkCentre M57p Desktop:6 MB
- ThinkStation D20:8 MB
Processor cache type
- ThinkCentre M57p Desktop:L2
- ThinkStation D20:Smart Cache
Bus type
- ThinkCentre M57p Desktop:FSB
- ThinkStation D20:QPI

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre M57p Desktop, ThinkStation D20
125 specifications	A Lenovo ThinkCentre M57p Desktop View product	B Lenovo ThinkStation D20 View product
Processor18 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™2 Duo	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E8400	X5550
Processor coresDiffers	2	4
Processor threadsDiffers	2	8
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.06 GHz
Processor frequencyDiffers	3 GHz	2.66 GHz
Processor cacheDiffers	6 MB	8 MB
Processor cache typeDiffers	L2	Smart Cache
Bus typeDiffers	FSB	QPI
FSB Parity	No	No
System bus rateKnown for one	Unknown — not stated by the source	6.4 GT/s
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core 2 Duo E8000 Series	Intel Xeon 5500 Series
Processor codenameDiffers	Wolfdale	Nehalem EP
Processor system typeKnown for one	Unknown — not stated by the source	DP
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	72.4 °C	75 °C
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Processor socketDiffers	LGA 775 (Socket T)	Socket B (LGA 1366)
Number of Processing Die TransistorsDiffers	410 M	731 M
Processing Die sizeDiffers	107 mm²	263 mm²
CPU multiplier (bus/core ratio)Differs	9	20
SteppingDiffers	E0	D0
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	144 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	800,1066,1333 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	32 GB/s
ECC supported by processorDiffers	No	Yes
Processor front side busKnown for one	1333 MHz	Unknown — not stated by the source
Memory3 differ
Internal memoryDiffers	2 GB	8 GB
Maximum internal memoryDiffers	8 GB	192 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Known for one	Unknown — not stated by the source	4 x 2 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Triple-channel
Storage2 differ
Optical drive typeDiffers	DVD-ROM	DVD-RW
HDD capacityKnown for one	Unknown — not stated by the source	1.5 TB
HDD interface	SATA	SATA
Card reader integratedDiffers	No	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	CF, MMC, SD, xD
Total storage capacityKnown for one	160 GB	Unknown — not stated by the source
Floppy drive installedKnown for one	No	Unknown — not stated by the source
Graphicsidentical
Graphics cardKnown for one	Unknown — not stated by the source	Quadro FX 4800
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Intel® GMA 3100	Unknown — not stated by the source
On-board graphics card modelKnown for one	Not available	Unknown — not stated by the source
Performance1 differ
Product typeDiffers	PC	Workstation
Optical driveidentical
CD read speedKnown for one	Unknown — not stated by the source	40x
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers	8	10
Ethernet LAN (RJ-45) portsDiffers	1	2
Headphone outputs	1	1
Line-inKnown for one	Unknown — not stated by the source	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	1	0
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) portsDiffers	0	2
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
Serial ports quantity	1	1
Parallel ports quantityDiffers	1	0
I/O portsKnown for one	Unknown — not stated by the source	1 eSATA, 5 SATA Gen 2, 5 SAS
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
Expansion slotsidentical
PCI Express x16 slotsKnown for one	Unknown — not stated by the source	1
PCI slotsKnown for one	Unknown — not stated by the source	2
Poweridentical
Power requirementsKnown for one	Unknown — not stated by the source	100-240V@50-60Hz
Power supplyKnown for one	Unknown — not stated by the source	1060 W
Design1 differ
Chassis typeDiffers	SFF	Tower
External drive baysKnown for one	Unknown — not stated by the source	3.5" x 1, 5.25" x 3
Internal drive baysKnown for one	Unknown — not stated by the source	3.5" x 5
Product colourKnown for one	Black	Unknown — not stated by the source
Softwareidentical
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows XP Pro SP1a/SP2a 32/64-bit Red Hat Enterprise Linux 5.0 Windows Vista Business Windows Vista Business 64 Windows Vista Enterprise Edition 32-bit Windows Vista Enterprise Edition 64-bit Windows Vista Ultimate Windows Vista Ultimate 64-Bit
Operating system installedKnown for one	Windows XP Professional	Unknown — not stated by the source
Displayidentical
Display included	No	No
Processor special features10 differ
CPU configuration (max)Known for one	Unknown — not stated by the source	2
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based SwitchingDiffers	No	Yes
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	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 TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
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® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor ARK IDDiffers	33910	37106
Processor codeDiffers	SLB9J	SLBF5
Processor package sizeDiffers	37.5 x 37.5 mm	42.5 x 45 mm
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Turbo Boost TechnologyDiffers	No	1.0
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
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	AD1882 HD Audio CODEC	ADI 1988 A
Weight & dimensions4 differ
WidthDiffers	317 mm	210 mm
DepthDiffers	341 mm	579 mm
HeightDiffers	99 mm	485 mm
WeightDiffers	7.4 kg	24.9 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Remote control includedKnown for one	No	Unknown — not stated by the source
Keyboardidentical
Keyboard typeKnown for one	Unknown — not stated by the source	Preferred Pro USB
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Wi-FiKnown for one	No	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Other featuresidentical
TV tuner integratedKnown for one	No	Unknown — not stated by the source
Intel segment taggingKnown for one	Enterprise, Professional	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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