Product comparison · 2 pcs/workstations

Lenovo ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520 vs Lenovo ThinkStation D20 (4155-79G), UK

87specifications compared
32differ
55identical
39known for one product only

Key differences

Processor family
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:Intel® Xeon® 3000 Sequence
- ThinkStation D20 (4155-79G), UK:Intel® Xeon® 5000 Sequence
Processor model
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:W3520
- ThinkStation D20 (4155-79G), UK:E5507
Processor threads
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:8
- ThinkStation D20 (4155-79G), UK:4
Processor frequency
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:2.66 GHz
- ThinkStation D20 (4155-79G), UK:2.26 GHz
Processor cache
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:8 MB
- ThinkStation D20 (4155-79G), UK:4 MB
System bus rate
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:4.80 GT/s
- ThinkStation D20 (4155-79G), UK:4.8 GT/s
Processor series
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:Intel Xeon 3500 Series
- ThinkStation D20 (4155-79G), UK:Intel Xeon 5500 Series
Processor codename
- ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520:Bloomfield
- ThinkStation D20 (4155-79G), UK:Nehalem EP

Side by side

Differences highlightedShow differences only

Comparison of SNC94MD, ThinkStation D20 (4155-79G), UK
126 specifications	A Lenovo ThinkStation SNC94MD workstation Intel® Xeon® 3000 Sequence W3520 Model SNC94MD View product	B Lenovo ThinkStation D20 (4155-79G), UK View product
Processor14 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Xeon® 3000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	W3520	E5507
Processor cores	4	4
Processor threadsDiffers	8	4
Processor frequencyDiffers	2.66 GHz	2.26 GHz
Processor cacheDiffers	8 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	QPI	QPI
FSB Parity	No	No
System bus rateDiffers	4.80 GT/s	4.8 GT/s
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Xeon 3500 Series	Intel Xeon 5500 Series
Processor codenameDiffers	Bloomfield	Nehalem EP
Thermal Design Power (TDP)Differs	130 W	80 W
TcaseDiffers	67.9 °C	76 °C
Number of QPI linksDiffers	1	2
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Stepping	D0	D0
Maximum internal memory supported by processorDiffers	24 GB	144 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	800,1066 MHz	800 MHz
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	19.2 GB/s
ECC supported by processor	Yes	Yes
Processor boost frequencyKnown for one	2.93 GHz	Unknown — not stated by the source
Processor front side busKnown for one	1066 MHz	Unknown — not stated by the source
Processor system typeKnown for one	Up	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	731 M	Unknown — not stated by the source
Processing Die sizeKnown for one	263 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	20	Unknown — not stated by the source
Processor core voltage (AC)Known for one	0.800 - 1.225 V	Unknown — not stated by the source
Memory1 differ
Internal memoryDiffers	6 GB	3 GB
Maximum internal memoryKnown for one	Unknown — not stated by the source	96 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Known for one	Unknown — not stated by the source	3 x 1 GB
Memory clock speed	1066 MHz	1066 MHz
Memory channels	Triple-channel	Triple-channel
Memory typeKnown for one	Unknown — not stated by the source	DDR3 SDRAM
ECCKnown for one	Yes	Unknown — not stated by the source
Storage1 differ
Optical drive type	DVD-RW	DVD-RW
HDD capacity	500 GB	500 GB
HDD interfaceDiffers	SATA	SATA II
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	CF, MMC, SD, xD
Storage drive typeKnown for one	Unknown — not stated by the source	500GB SATA/ 7200
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Performanceidentical
Product type	Workstation	Workstation
Motherboard form factorKnown for one	ATX	Unknown — not stated by the source
Optical driveidentical
CD read speedKnown for one	Unknown — not stated by the source	40x
Networkidentical
Modem typeKnown for one	Unknown — not stated by the source	No
Ports & interfaces3 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 quantity	0	0
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	2
eSATA ports quantity	1	1
Serial ports quantity	1	1
Parallel ports quantity	0	0
DisplayPorts quantityKnown for one	2	Unknown — not stated by the source
DVI-I ports quantityKnown for one	1	Unknown — not stated by the source
Expansion slots2 differ
PCI Express x16 slotsDiffers	2	1
PCI slotsDiffers	1	2
Expansion slotsKnown for one	Unknown — not stated by the source	PCI Express 2.0
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x4 slotsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power requirementsDiffers	100-240V, 50/60Hz	100-240V; 50/60Hz
Power supplyKnown for one	Unknown — not stated by the source	1060 W
Designidentical
Chassis type	Tower	Tower
Form factorKnown for one	Unknown — not stated by the source	Tower Tower (6x9)
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
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Displayidentical
Display included	No	No
Processor special features6 differ
Embedded options available	No	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 Switching	Yes	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 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)	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 Cache	Yes	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)Differs	36 bit	Yes
Processor ARK IDDiffers	39718	37100
Processor codeDiffers	SLBEW	SLBKC
Thermal Monitoring Technologies	No	No
Intel® Turbo Boost TechnologyDiffers	1.0	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
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Processor package sizeKnown for one	42.5 x 45.0 mm	Unknown — not stated by the source
Supported instruction setsKnown for one	SSE4.2	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	ADI 1988 A
Weight & dimensions4 differ
WidthDiffers	175 mm	210 mm
DepthDiffers	483 mm	579 mm
HeightDiffers	426 mm	485 mm
WeightDiffers	17.5 kg	24.9 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Keyboardidentical
Pointing deviceKnown for one	Unknown — not stated by the source	USB Optical Wheel Mouse
Keyboard typeKnown for one	Unknown — not stated by the source	Preferred Pro USB
Featuresidentical
Manageability featuresKnown for one	Unknown — not stated by the source	Image Ultra - HIIT Compliant Drivers - Vista Only, Secure Data Disposal, ThinkVantage Image Ultra Builder - Vista Support, ThinkVantage Update Builder, ThinkVantage Update Retriever
Other featuresidentical
Security featuresKnown for one	Unknown — not stated by the source	Boot sequence control, Boot without keyboard or mouse, Configuration password, Cover key lock, Diskette Boot inhibit, Diskette I/O control, Hardfile I/O control, Padlock loop, Power on password, Security slot (for attachment of optional cable lock), Ser

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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