Product comparison · 2 pcs/workstations

Lenovo ThinkCentre STCB8GE PC Intel® Core™ i5 vs Lenovo ThinkStation D20 (4155-79G), DE

33specifications compared
23differ
10identical
82known for one product only

Key differences

The Lenovo ThinkCentre STCB8GE PC Intel® Core™ i5 has 0.4 GHz more processor frequency than the Lenovo ThinkStation D20 (4155-79G), DE (2.66 GHz vs 2.26 GHz). The Lenovo ThinkCentre STCB8GE PC Intel® Core™ i5 has 4 MB more processor cache than the Lenovo ThinkStation D20 (4155-79G), DE (8 MB vs 4 MB). The Lenovo ThinkStation D20 (4155-79G), DE has 2.3 GT/s more system bus rate than the Lenovo ThinkCentre STCB8GE PC Intel® Core™ i5 (4.8 GT/s vs 2.5 GT/s). Processor family: Intel® Core™ i5 on the Lenovo ThinkCentre STCB8GE PC Intel® Core™ i5, Intel® Xeon® 5000 Sequence on the Lenovo ThinkStation D20 (4155-79G), DE. Processor cache type: L2 on the Lenovo ThinkCentre STCB8GE PC Intel® Core™ i5, Smart Cache on the Lenovo ThinkStation D20 (4155-79G), DE.

Processor family
- ThinkCentre STCB8GE PC Intel® Core™ i5:Intel® Core™ i5
- ThinkStation D20 (4155-79G), DE:Intel® Xeon® 5000 Sequence
Processor frequency
- ThinkCentre STCB8GE PC Intel® Core™ i5:2.66 GHz
- ThinkStation D20 (4155-79G), DE:2.26 GHz
Processor cache
- ThinkCentre STCB8GE PC Intel® Core™ i5:8 MB
- ThinkStation D20 (4155-79G), DE:4 MB
Processor cache type
- ThinkCentre STCB8GE PC Intel® Core™ i5:L2
- ThinkStation D20 (4155-79G), DE:Smart Cache
System bus rate
- ThinkCentre STCB8GE PC Intel® Core™ i5:2.5 GT/s
- ThinkStation D20 (4155-79G), DE:4.8 GT/s
Internal memory
- ThinkCentre STCB8GE PC Intel® Core™ i5:4 GB
- ThinkStation D20 (4155-79G), DE:3 GB
Maximum internal memory
- ThinkCentre STCB8GE PC Intel® Core™ i5:8 GB
- ThinkStation D20 (4155-79G), DE:96 GB
Memory layout (slots x size)
- ThinkCentre STCB8GE PC Intel® Core™ i5:2 x 2 GB
- ThinkStation D20 (4155-79G), DE:3 x 1 GB

Side by side

Differences highlightedShow differences only

Comparison of STCB8GE, ThinkStation D20 (4155-79G), DE
115 specifications	A Lenovo ThinkCentre STCB8GE PC Intel® Core™ i5 Model STCB8GE View product	B Lenovo ThinkStation D20 (4155-79G), DE View product
Processor5 differ
Processor manufacturerKnown for one	Unknown — not stated by the source	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Xeon® 5000 Sequence
Processor modelKnown for one	Unknown — not stated by the source	E5507
Processor cores	4	4
Processor threadsKnown for one	Unknown — not stated by the source	4
Processor frequencyDiffers	2.66 GHz	2.26 GHz
Processor cacheDiffers	8 MB	4 MB
Processor cache typeDiffers	L2	Smart Cache
Bus typeKnown for one	Unknown — not stated by the source	QPI
FSB ParityKnown for one	Unknown — not stated by the source	No
System bus rateDiffers	2.5 GT/s	4.8 GT/s
Processor lithographyKnown for one	Unknown — not stated by the source	45 nm
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Xeon 5500 Series
Processor codenameKnown for one	Unknown — not stated by the source	Nehalem EP
Thermal Design Power (TDP)Known for one	Unknown — not stated by the source	80 W
TcaseKnown for one	Unknown — not stated by the source	76 °C
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Processor socketKnown for one	Unknown — not stated by the source	Socket B (LGA 1366)
SteppingKnown for one	Unknown — not stated by the source	D0
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	144 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	19.2 GB/s
ECC supported by processorKnown for one	Unknown — not stated by the source	Yes
Memory3 differ
Internal memoryDiffers	4 GB	3 GB
Maximum internal memoryDiffers	8 GB	96 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	2 x 2 GB	3 x 1 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1066 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Triple-channel
Storage1 differ
Optical drive type	DVD-RW	DVD-RW
HDD capacityKnown for one	Unknown — not stated by the source	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
Total storage capacityKnown for one	320 GB	Unknown — not stated by the source
Floppy drive installedKnown for one	No	Unknown — not stated by the source
Graphicsidentical
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.5 GB
On-board graphics cardKnown for one	No	Unknown — not stated by the source
Graphics card familyKnown for one	Intel	Unknown — not stated by the source
Performance1 differ
Product typeDiffers	PC	Workstation
Optical driveidentical
CD read speedKnown for one	Unknown — not stated by the source	40x
Ports & interfaces6 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 quantityDiffers	1	0
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) portsDiffers	0	2
eSATA ports quantityDiffers	2	1
Serial ports quantity	1	1
Parallel ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
Expansion slotsidentical
PCI Express x16 slotsKnown for one	Unknown — not stated by the source	1
PCI slotsKnown for one	Unknown — not stated by the source	2
Power2 differ
Power requirementsDiffers	100 - 230V	100-240V; 50/60Hz
Power supplyDiffers	240 W	1060 W
Design1 differ
Chassis typeDiffers	SFF	Tower
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
Displayidentical
Display included	No	No
Processor special featuresidentical
Embedded options availableKnown for one	Unknown — not stated by the source	No
Enhanced Intel SpeedStep TechnologyKnown for one	Unknown — not stated by the source	Yes
Execute Disable BitKnown for one	Unknown — not stated by the source	Yes
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel 64Known for one	Unknown — not stated by the source	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	Yes
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	No
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	No
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	Yes
Intel Virtualization Technology (VT-x)Known for one	Unknown — not stated by the source	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	Yes
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Insider™Known for one	Unknown — not stated by the source	No
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor ARK IDKnown for one	Unknown — not stated by the source	37100
Processor codeKnown for one	Unknown — not stated by the source	SLBKC
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	No
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	ADI 1988 A
Weight & dimensions4 differ
WidthDiffers	317 mm	210 mm
DepthDiffers	355 mm	579 mm
HeightDiffers	99 mm	485 mm
WeightDiffers	7.5 kg	24.9 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Remote control includedKnown for one	No	Unknown — not stated by the source
Keyboardidentical
Keyboard typeKnown for one	Unknown — not stated by the source	Preferred Pro USB
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	1000 Mbit/s	Unknown — not stated by the source
Wi-FiKnown for one	No	Unknown — not stated by the source
Other featuresidentical
TV tuner integratedKnown for one	No	Unknown — not stated by the source
Intel segment taggingKnown for one	Enterprise, Professional	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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