Product comparison · 2 pcs/workstations

Lenovo ThinkStation D20 (4155-79G), IT vs Lenovo ThinkStation S20 + NVIDIA Quadro FX 1800

87specifications compared
31differ
56identical
24known for one product only

Key differences

Processor family
- ThinkStation D20 (4155-79G), IT:Intel® Xeon® 5000 Sequence
- ThinkStation S20 + NVIDIA Quadro FX 1800:Intel® Xeon® 3000 Sequence
Processor model
- ThinkStation D20 (4155-79G), IT:E5507
- ThinkStation S20 + NVIDIA Quadro FX 1800:W3530
Processor threads
- ThinkStation D20 (4155-79G), IT:4
- ThinkStation S20 + NVIDIA Quadro FX 1800:8
Processor frequency
- ThinkStation D20 (4155-79G), IT:2.26 GHz
- ThinkStation S20 + NVIDIA Quadro FX 1800:2.8 GHz
Processor cache
- ThinkStation D20 (4155-79G), IT:4 MB
- ThinkStation S20 + NVIDIA Quadro FX 1800:8 MB
Processor series
- ThinkStation D20 (4155-79G), IT:Intel Xeon 5500 Series
- ThinkStation S20 + NVIDIA Quadro FX 1800:Intel Xeon 3500 Series
Processor codename
- ThinkStation D20 (4155-79G), IT:Nehalem EP
- ThinkStation S20 + NVIDIA Quadro FX 1800:Bloomfield
Thermal Design Power (TDP)
- ThinkStation D20 (4155-79G), IT:80 W
- ThinkStation S20 + NVIDIA Quadro FX 1800:130 W

Side by side

Differences highlightedShow differences only

Comparison of ThinkStation D20 (4155-79G), IT, ThinkStation S20 + NVIDIA Quadro FX 1800
111 specifications	A Lenovo ThinkStation D20 (4155-79G), IT View product	B Lenovo ThinkStation S20 + NVIDIA Quadro FX 1800 View product
Processor13 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Xeon® 3000 Sequence
Processor modelDiffers	E5507	W3530
Processor threadsDiffers	4	8
Processor frequencyDiffers	2.26 GHz	2.8 GHz
Processor cacheDiffers	4 MB	8 MB
Processor seriesDiffers	Intel Xeon 5500 Series	Intel Xeon 3500 Series
Processor codenameDiffers	Nehalem EP	Bloomfield
Thermal Design Power (TDP)Differs	80 W	130 W
TcaseDiffers	76 °C	67.9 °C
Number of QPI linksDiffers	2	1
Maximum internal memory supported by processorDiffers	144 GB	24 GB
Memory clock speeds supported by processorDiffers	800 MHz	800,1066 MHz
Memory bandwidth supported by processor (max)Differs	19.2 GB/s	25.6 GB/s
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.06 GHz
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	731 M
Processing Die sizeKnown for one	Unknown — not stated by the source	263 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	21
Processor core voltage (AC)Known for one	Unknown — not stated by the source	1.55 V
Memory3 differ
Internal memoryDiffers	3 GB	6 GB
Maximum internal memoryDiffers	96 GB	24 GB
Memory layout (slots x size)Differs	3 x 1 GB	3 x 2 GB
Storage2 differ
Optical drive typeKnown for one	DVD-RW	Unknown — not stated by the source
HDD interfaceDiffers	SATA II	SATA
Card reader integratedDiffers	Yes	No
Compatible memory cardsKnown for one	CF, MMC, SD, xD	Unknown — not stated by the source
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® X58 Express
Optical driveidentical
CD read speedKnown for one	40x	Unknown — not stated by the source
Ports & interfaces1 differ
Ethernet LAN (RJ-45) portsDiffers	2	1
Line-inKnown for one	Yes	Unknown — not stated by the source
eSATA ports quantityKnown for one	1	Unknown — not stated by the source
Expansion slotsidentical
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
PCI slotsKnown for one	2	Unknown — not stated by the source
Power1 differ
Power requirementsKnown for one	100-240V; 50/60Hz	Unknown — not stated by the source
Power supplyDiffers	1060 W	625 W
Power supply input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
Power supply input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Softwareidentical
Optional operating system suppliedKnown for one	Windows XP Professional	Unknown — not stated by the source
Compatible operating systemsKnown for one	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	Unknown — not stated by the source
Processor special features6 differ
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Physical Address Extension (PAE)Differs	Yes	36 bit
Processor ARK IDDiffers	37100	41313
Processor codeDiffers	SLBKC	SLBKR
Intel® Turbo Boost TechnologyDiffers	No	1.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Processor package sizeKnown for one	Unknown — not stated by the source	42.5 x 45.0 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
Audio1 differ
Audio systemDiffers	ADI 1988 A	High Definition Audio
Weight & dimensions4 differ
WidthDiffers	210 mm	175 mm
DepthDiffers	579 mm	460 mm
HeightDiffers	485 mm	478 mm
WeightDiffers	24.9 kg	16.3 kg
Packaging contentidentical
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Keyboardidentical
Keyboard typeKnown for one	Preferred Pro USB	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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