Product comparison · 2 pcs/workstations

Lenovo ThinkStation D20 vs Lenovo ThinkStation S20 (410527G) + L2440P 24-inch Display

102specifications compared
29differ
73identical
8known for one product only

Key differences

Processor model
- ThinkStation D20:X5550
- ThinkStation S20 (410527G) + L2440P 24-inch Display:E5502
Processor cores
- ThinkStation D20:4
- ThinkStation S20 (410527G) + L2440P 24-inch Display:2
Processor threads
- ThinkStation D20:8
- ThinkStation S20 (410527G) + L2440P 24-inch Display:2
Processor frequency
- ThinkStation D20:2.66 GHz
- ThinkStation S20 (410527G) + L2440P 24-inch Display:1.86 GHz
Processor cache
- ThinkStation D20:8 MB
- ThinkStation S20 (410527G) + L2440P 24-inch Display:4 MB
System bus rate
- ThinkStation D20:6.4 GT/s
- ThinkStation S20 (410527G) + L2440P 24-inch Display:4.8 GT/s
Thermal Design Power (TDP)
- ThinkStation D20:95 W
- ThinkStation S20 (410527G) + L2440P 24-inch Display:80 W
Tcase
- ThinkStation D20:75 °C
- ThinkStation S20 (410527G) + L2440P 24-inch Display:76 °C

Side by side

Differences highlightedShow differences only

Comparison of ThinkStation D20, ThinkStation S20 (410527G) + L2440P 24-inch Display
110 specifications	A Lenovo ThinkStation D20 View product	B Lenovo ThinkStation S20 (410527G) + L2440P 24-inch Display View product
Processor11 differ
Processor modelDiffers	X5550	E5502
Processor coresDiffers	4	2
Processor threadsDiffers	8	2
Processor boost frequencyKnown for one	3.06 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.66 GHz	1.86 GHz
Processor cacheDiffers	8 MB	4 MB
System bus rateDiffers	6.4 GT/s	4.8 GT/s
Thermal Design Power (TDP)Differs	95 W	80 W
TcaseDiffers	75 °C	76 °C
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	20	14
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	800 MHz
Memory bandwidth supported by processor (max)Differs	32 GB/s	19.2 GB/s
Memory4 differ
Internal memoryDiffers	8 GB	2 GB
Maximum internal memoryDiffers	192 GB	12 GB
Memory layout (slots x size)Differs	4 x 2 GB	2 x 1 GB
Memory clock speedDiffers	1333 MHz	1066 MHz
Storage1 differ
HDD capacityDiffers	1.5 TB	250 GB
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Graphics1 differ
Graphics cardDiffers	Quadro FX 4800	Quadro FX 380
Ports & interfacesidentical
I/O portsKnown for one	1 eSATA, 5 SATA Gen 2, 5 SAS	Unknown — not stated by the source
Power2 differ
Power requirementsDiffers	100-240V@50-60Hz	100-240V; 50/60Hz
Power supplyDiffers	1060 W	625 W
Designidentical
External drive baysKnown for one	3.5" x 1, 5.25" x 3	Unknown — not stated by the source
Internal drive baysKnown for one	3.5" x 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 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	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
Operating system installedKnown for one	Unknown — not stated by the source	Windows XP Professional
Display1 differ
Display includedDiffers	No	Yes
Processor special features4 differ
Processor ARK IDDiffers	37106	37092
Processor codeDiffers	SLBF5	SLBEZ
Intel® Turbo Boost TechnologyDiffers	1.0	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
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

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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