Product comparison · 2 pcs/workstations

Lenovo D20 (4155-22G) vs Lenovo Thinkstation S20 + NVIDIA Quadro FX 580

102specifications compared
33differ
69identical
23known for one product only

Key differences

Processor model
- D20 (4155-22G):E5520
- Thinkstation S20 + NVIDIA Quadro FX 580:E5502
Processor cores
- D20 (4155-22G):4
- Thinkstation S20 + NVIDIA Quadro FX 580:2
Processor threads
- D20 (4155-22G):8
- Thinkstation S20 + NVIDIA Quadro FX 580:2
Processor frequency
- D20 (4155-22G):2.26 GHz
- Thinkstation S20 + NVIDIA Quadro FX 580:1.86 GHz
Processor cache
- D20 (4155-22G):8 MB
- Thinkstation S20 + NVIDIA Quadro FX 580:4 MB
System bus rate
- D20 (4155-22G):5.86 GT/s
- Thinkstation S20 + NVIDIA Quadro FX 580:4.8 GT/s
Tcase
- D20 (4155-22G):72 °C
- Thinkstation S20 + NVIDIA Quadro FX 580:76 °C
CPU multiplier (bus/core ratio)
- D20 (4155-22G):17
- Thinkstation S20 + NVIDIA Quadro FX 580:14

Side by side

Differences highlightedShow differences only

Comparison of D20 (4155-22G), Thinkstation S20 + NVIDIA Quadro FX 580
125 specifications	A Lenovo D20 (4155-22G)View product	B Lenovo Thinkstation S20 + NVIDIA Quadro FX 580 View product
Processor10 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5520	E5502
Processor coresDiffers	4	2
Processor threadsDiffers	8	2
Processor boost frequencyKnown for one	2.53 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.26 GHz	1.86 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	5.86 GT/s	4.8 GT/s
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Xeon 5500 Series	Intel Xeon 5500 Series
Processor codename	Nehalem EP	Nehalem EP
Processor system type	DP	DP
Thermal Design Power (TDP)	80 W	80 W
TcaseDiffers	72 °C	76 °C
Number of QPI links	2	2
Number of processors installed	1	1
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
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)Differs	17	14
Stepping	D0	D0
Maximum internal memory supported by processor	144 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
Memory3 differ
Internal memory	4 GB	4 GB
Maximum internal memoryDiffers	96 GB	12 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	2 x 2 GB	2 x 4 GB
Memory clock speedDiffers	1066 MHz	1333 MHz
Memory channels	Triple-channel	Triple-channel
ECCKnown for one	Unknown — not stated by the source	Yes
Storage4 differ
Optical drive type	DVD-RW	DVD-RW
Number of HDDs installed	1	1
HDD capacityDiffers	147 GB	250 GB
HDD interfaceDiffers	Serial Attached SCSI (SAS)	SATA
HDD speedDiffers	15000 RPM	7200 RPM
Card reader integratedDiffers	Yes	No
RAID supportKnown for one	Yes	Unknown — not stated by the source
RAID levelsKnown for one	0, 1, 5, 10	Unknown — not stated by the source
Performanceidentical
Product type	Workstation	Workstation
Motherboard form factorKnown for one	Unknown — not stated by the source	ATX
Optical driveidentical
CD read speedKnown for one	40x	Unknown — not stated by the source
Networkidentical
Networking features	Gigabit Ethernet (10/100/1000)	Gigabit Ethernet (10/100/1000)
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	10	8
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
Ethernet LAN (RJ-45) portsDiffers	2	1
Headphone outputs	1	1
Line-inKnown for one	Yes	Unknown — not stated by the source
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	0	0
PS/2 ports quantity	0	0
Firewire (IEEE 1394) portsKnown for one	2	Unknown — not stated by the source
eSATA ports quantityKnown for one	1	Unknown — not stated by the source
Serial ports quantity	1	1
Parallel ports quantity	0	0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DVI-I ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slots1 differ
PCI Express x1 slotsDiffers	2	1
PCI Express x4 slots	1	1
PCI Express x16 slots	2	2
PCI slotsKnown for one	Unknown — not stated by the source	1
Power2 differ
Power requirementsDiffers	100-240V, 50/60Hz	100 - 127 V, 200 - 240 V
Power supplyDiffers	1060 W	625 W
Power supply typeKnown for one	Unknown — not stated by the source	AC
Designidentical
Chassis type	Tower	Tower
Product colour	Black	Black
External drive baysKnown for one	1x 3.5", 3x 5.25"	Unknown — not stated by the source
Internal drive baysKnown for one	5x 3.5"	Unknown — not stated by the source
Software1 differ
Compatible operating systemsDiffers	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.	Windows Vista, XP Pro 32-bit, XP Pro 64-bit Red Hat Enterprise Linux 5.2 64-bit
Operating system installedKnown for one	Unknown — not stated by the source	Windows XP Professional
Trial softwareKnown for one	Unknown — not stated by the source	Microsoft Office 2010
Displayidentical
Display included	No	No
Processor special features5 differ
CPU configuration (max)	2	2
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)	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 Cache	Yes	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)Differs	40 bit	Yes
Processor ARK IDDiffers	40200	37092
Processor codeDiffers	SLBFD	SLBEZ
Processor package size	42.5 x 45 mm	42.5 x 45 mm
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
Audio1 differ
Audio systemDiffers	ADI 1988 A	HD 7.1
Ergonomicsidentical
Acoustic pressure emissionsKnown for one	24 dB	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	210 mm	175 mm
DepthDiffers	602 mm	483 mm
HeightDiffers	434 mm	426 mm
WeightDiffers	24.9 kg	15 kg
Certificatesidentical
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
CertificationKnown for one	Unknown — not stated by the source	EPEAT, Energy Star 5.0, RoHS, GREENGUARD
Graphicsidentical
Graphics cardKnown for one	Unknown — not stated by the source	Quadro FX 580
Graphics card manufacturerKnown for one	Unknown — not stated by the source	NVIDIA

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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