Product comparison · 2 pcs/workstations

Lenovo ThinkStation D20 Intel® Xeon® 5000 Sequence E5540 vs Lenovo ThinkCentre A58 Tower (75157FG), ES

84specifications compared
47differ
37identical
55known for one product only

Key differences

Processor family
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:Intel® Xeon® 5000 Sequence
- ThinkCentre A58 Tower (75157FG), ES:Intel® Pentium®
Processor model
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:E5540
- ThinkCentre A58 Tower (75157FG), ES:E5200
Processor cores
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:4
- ThinkCentre A58 Tower (75157FG), ES:2
Processor threads
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:8
- ThinkCentre A58 Tower (75157FG), ES:2
Processor frequency
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:2.53 GHz
- ThinkCentre A58 Tower (75157FG), ES:2.5 GHz
Processor cache
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:8 MB
- ThinkCentre A58 Tower (75157FG), ES:2 MB
Processor cache type
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:Smart Cache
- ThinkCentre A58 Tower (75157FG), ES:L2
Bus type
- ThinkStation D20 Intel® Xeon® 5000 Sequence E5540:QPI
- ThinkCentre A58 Tower (75157FG), ES:FSB

Side by side

Differences highlightedShow differences only

Comparison of D20, ThinkCentre A58 Tower (75157FG), ES
139 specifications	A Lenovo ThinkStation D20 Intel® Xeon® 5000 Sequence E5540 Model D20 View product	B Lenovo ThinkCentre A58 Tower (75157FG), ES View product
Processor18 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Pentium®
Processor modelDiffers	E5540	E5200
Processor coresDiffers	4	2
Processor threadsDiffers	8	2
Processor boost frequencyKnown for one	2.8 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.53 GHz	2.5 GHz
Processor cacheDiffers	8 MB	2 MB
Processor cache typeDiffers	Smart Cache	L2
Bus typeDiffers	QPI	FSB
System bus rateKnown for one	5.86 GT/s	Unknown — not stated by the source
Processor seriesDiffers	Intel Xeon 5500 Series	Intel Pentium E5000 Series for Desktop
Processor codenameDiffers	Nehalem EP	Wolfdale
Processor system typeKnown for one	DP	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	80 W	65 W
TcaseDiffers	76 °C	74.1 °C
Number of QPI linksKnown for one	2	Unknown — not stated by the source
Processor socketDiffers	Socket B (LGA 1366)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	731 M	228 M
Processing Die sizeDiffers	263 mm²	82 mm²
CPU multiplier (bus/core ratio)Differs	19	12.5
SteppingDiffers	D0	M0
Maximum internal memory supported by processorKnown for one	144 GB	Unknown — not stated by the source
Memory types supported by processorKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory clock speeds supported by processorKnown for one	800,1066 MHz	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Known for one	25.6 GB/s	Unknown — not stated by the source
ECC supported by processorDiffers	Yes	No
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Memory4 differ
Internal memoryDiffers	16 GB	1 GB
Maximum internal memoryDiffers	96 GB	4 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Memory slotsKnown for one	12x DIMM	Unknown — not stated by the source
Memory clock speedDiffers	1066 MHz	800 MHz
Memory channelsKnown for one	Triple-channel	Unknown — not stated by the source
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 1 GB
Storage2 differ
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityKnown for one	147 GB	Unknown — not stated by the source
HDD interfaceDiffers	Serial Attached SCSI (SAS)	SATA
HDD speedKnown for one	15000 RPM	Unknown — not stated by the source
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
Total storage capacityKnown for one	Unknown — not stated by the source	250 GB
Floppy drive installedKnown for one	Unknown — not stated by the source	No
Graphicsidentical
Maximum graphics card memoryKnown for one	0.768 GB	Unknown — not stated by the source
Graphics cardKnown for one	Quadro FX 1800	Unknown — not stated by the source
Graphics card familyKnown for one	NVIDIA	Unknown — not stated by the source
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® GMA X4500
Performance1 differ
Product typeDiffers	Workstation	PC
Motherboard chipsetKnown for one	Intel® 5520	Unknown — not stated by the source
Audio output channelsKnown for one	7.1 channels	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Gigabit Ethernet (10/100/1000)	Gigabit Ethernet
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Wi-FiKnown for one	Unknown — not stated by the source	No
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	10	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsDiffers	2	1
Firewire (IEEE 1394) portsDiffers	1	0
eSATA ports quantityKnown for one	1	Unknown — not stated by the source
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	1
DVI portKnown for one	Unknown — not stated by the source	No
PS/2 ports quantityKnown for one	Unknown — not stated by the source	2
Parallel ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slotsidentical
Number of 3.5" baysKnown for one	6	Unknown — not stated by the source
PCI Express x4 slotsKnown for one	1	Unknown — not stated by the source
PCI slotsKnown for one	2	Unknown — not stated by the source
Power2 differ
Power supplyDiffers	1060 W	280 W
Power supply input voltageDiffers	100 - 240 V	110 - 220 V
Designidentical
Number of 5.25" baysKnown for one	3	Unknown — not stated by the source
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
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
Processor special features11 differ
CPU configuration (max)Differs	2	1
Embedded options availableDiffers	Yes	No
Intel Demand Based SwitchingDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Physical Address Extension (PAE)Known for one	Yes	Unknown — not stated by the source
Processor ARK IDDiffers	37104	37212
Processor codeKnown for one	SLBF6	Unknown — not stated by the source
Processor package sizeDiffers	42.5 x 45 mm	37.5 x 37.5 mm
Thermal Monitoring TechnologiesDiffers	No	Yes
Intel® Turbo Boost TechnologyDiffers	1.0	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Audio1 differ
Audio systemDiffers	HD	ALC662
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 80%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	210 mm	175 mm
DepthDiffers	602 mm	442 mm
HeightDiffers	485 mm	412 mm
WeightDiffers	25 kg	11.2 kg
Packaging contentidentical
Remote control includedKnown for one	Unknown — not stated by the source	No
Certificatesidentical
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Softwareidentical
Operating system installedKnown for one	Unknown — not stated by the source	Windows XP Professional
Other featuresidentical
TV tuner integratedKnown for one	Unknown — not stated by the source	No

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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