Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M90 vs Lenovo ThinkStation D20 (4155-79G), BE

82specifications compared
44differ
38identical
50known for one product only

Key differences

Processor family
- ThinkCentre M90:Intel® Core™ i3
- ThinkStation D20 (4155-79G), BE:Intel® Xeon® 5000 Sequence
Processor model
- ThinkCentre M90:i3-530
- ThinkStation D20 (4155-79G), BE:E5507
Processor cores
- ThinkCentre M90:2
- ThinkStation D20 (4155-79G), BE:4
Processor frequency
- ThinkCentre M90:2.93 GHz
- ThinkStation D20 (4155-79G), BE:2.26 GHz
Bus type
- ThinkCentre M90:DMI
- ThinkStation D20 (4155-79G), BE:QPI
System bus rate
- ThinkCentre M90:2.5 GT/s
- ThinkStation D20 (4155-79G), BE:4.8 GT/s
Processor lithography
- ThinkCentre M90:32 nm
- ThinkStation D20 (4155-79G), BE:45 nm
Processor codename
- ThinkCentre M90:Clarkdale
- ThinkStation D20 (4155-79G), BE:Nehalem EP

Side by side

Differences highlightedShow differences only

Comparison of ThinkCentre M90, ThinkStation D20 (4155-79G), BE
132 specifications	A Lenovo ThinkCentre M90 View product	B Lenovo ThinkStation D20 (4155-79G), BE View product
Processor15 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Xeon® 5000 Sequence
Processor generationKnown for one	Intel® Core™ i3	Unknown — not stated by the source
Processor modelDiffers	i3-530	E5507
Processor coresDiffers	2	4
Processor threads	4	4
Processor frequencyDiffers	2.93 GHz	2.26 GHz
Processor cache	4 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Bus typeDiffers	DMI	QPI
FSB Parity	No	No
System bus rateDiffers	2.5 GT/s	4.8 GT/s
Processor lithographyDiffers	32 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor codenameDiffers	Clarkdale	Nehalem EP
Thermal Design Power (TDP)Differs	73 W	80 W
TcaseDiffers	72.6 °C	76 °C
TjunctionKnown for one	100 °C	Unknown — not stated by the source
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16, 2x8	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
Processor socketDiffers	LGA 1156 (Socket H)	Socket B (LGA 1366)
Number of Processing Die TransistorsKnown for one	382 M	Unknown — not stated by the source
Processing Die sizeKnown for one	81 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	22	Unknown — not stated by the source
Processor core voltage (AC)Known for one	0.95 - 1.30 V	Unknown — not stated by the source
SteppingDiffers	C2	D0
Maximum internal memory supported by processorDiffers	16 GB	144 GB
Memory bandwidth supported by processor (max)Differs	21 GB/s	19.2 GB/s
ECC supported by processorDiffers	No	Yes
Processor seriesKnown for one	Unknown — not stated by the source	Intel Xeon 5500 Series
Number of QPI linksKnown for one	Unknown — not stated by the source	2
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 MHz
Memory4 differ
Internal memoryDiffers	2 GB	3 GB
Maximum internal memoryDiffers	8 GB	96 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	1 x 2 GB	3 x 1 GB
Memory channelsDiffers	Dual-channel	Triple-channel
Memory clock speedKnown for one	Unknown — not stated by the source	1066 MHz
Storage2 differ
Total storage capacityKnown for one	250 GB	Unknown — not stated by the source
Optical drive type	DVD-RW	DVD-RW
HDD interfaceDiffers	SATA	SATA II
Card reader integratedDiffers	No	Yes
Floppy drive installedKnown for one	No	Unknown — not stated by the source
HDD capacityKnown for one	Unknown — not stated by the source	500 GB
Compatible memory cardsKnown for one	Unknown — not stated by the source	CF, MMC, SD, xD
Graphicsidentical
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
On-board graphics card modelKnown for one	Intel® HD Graphics	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	2	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	733 MHz	Unknown — not stated by the source
Maximum graphics card memoryKnown for one	0 GB	Unknown — not stated by the source
Graphics card familyKnown for one	Intel	Unknown — not stated by the source
Performance1 differ
Product typeDiffers	PC	Workstation
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	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
Ports & interfaces7 differ
USB 2.0 ports quantityDiffers	8	10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsDiffers	1	2
Headphone outputsDiffers	2	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	1	0
DVI portKnown for one	Yes	Unknown — not stated by the source
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) portsDiffers	0	2
Serial ports quantityDiffers	0	1
Parallel ports quantity	0	0
Line-inKnown for one	Unknown — not stated by the source	Yes
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slots1 differ
PCI Express x16 slots	1	1
PCI slotsDiffers	1	2
Power1 differ
Power supplyDiffers	240 W	1060 W
Power requirementsKnown for one	Unknown — not stated by the source	100-240V; 50/60Hz
Designidentical
Chassis type	Tower	Tower
Product colourKnown for one	Black	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Optional operating system suppliedKnown for one	Unknown — not stated by the source	Windows XP Professional
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 32/64-bit Windows Vista Enterprise 32/64-bit Windows Vista Ultimate 32/64-bit
Displayidentical
Display included	No	No
Processor special features8 differ
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based SwitchingDiffers	No	Yes
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	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)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	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
Physical Address Extension (PAE)Differs	36 bit	Yes
Processor ARK IDDiffers	46472	37100
Processor package sizeKnown for one	37.5 x 37.5 mm	Unknown — not stated by the source
Supported instruction setsKnown for one	SSE4.2	Unknown — not stated by the source
Thermal Monitoring Technologies	No	No
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	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
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Processor codeKnown for one	Unknown — not stated by the source	SLBKC
Audio1 differ
Audio systemDiffers	High Definition Audio	ADI 1988 A
Weight & dimensions4 differ
WidthDiffers	317 mm	210 mm
DepthDiffers	99 mm	579 mm
HeightDiffers	355 mm	485 mm
WeightDiffers	7.5 kg	24.9 kg
Packaging contentidentical
Remote control includedKnown for one	No	Unknown — not stated by the source
Mouse includedKnown for one	Unknown — not stated by the source	Yes
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
Optical driveidentical
CD read speedKnown for one	Unknown — not stated by the source	40x
Keyboardidentical
Keyboard typeKnown for one	Unknown — not stated by the source	Preferred Pro USB

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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