Product comparison · 2 pcs/workstations

Lenovo ThinkStation D20 (4155-79G), IT vs TERRA PC 2500

75specifications compared
39differ
36identical
50known for one product only

Key differences

Processor family
- ThinkStation D20 (4155-79G), IT:Intel® Xeon® 5000 Sequence
- TERRA PC 2500:Intel® Pentium®
Processor model
- ThinkStation D20 (4155-79G), IT:E5507
- TERRA PC 2500:E5300
Processor cores
- ThinkStation D20 (4155-79G), IT:4
- TERRA PC 2500:2
Processor threads
- ThinkStation D20 (4155-79G), IT:4
- TERRA PC 2500:2
Processor frequency
- ThinkStation D20 (4155-79G), IT:2.26 GHz
- TERRA PC 2500:2.6 GHz
Processor cache
- ThinkStation D20 (4155-79G), IT:4 MB
- TERRA PC 2500:2 MB
Processor cache type
- ThinkStation D20 (4155-79G), IT:Smart Cache
- TERRA PC 2500:L2
Bus type
- ThinkStation D20 (4155-79G), IT:QPI
- TERRA PC 2500:FSB

Side by side

Differences highlightedShow differences only

Comparison of ThinkStation D20 (4155-79G), IT, TERRA PC 2500
125 specifications	A Lenovo ThinkStation D20 (4155-79G), IT View product	B TERRA TERRA PC 2500 View product
Processor15 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Pentium®
Processor modelDiffers	E5507	E5300
Processor coresDiffers	4	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	2.26 GHz	2.6 GHz
Processor cacheDiffers	4 MB	2 MB
Processor cache typeDiffers	Smart Cache	L2
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Bus typeDiffers	QPI	FSB
FSB Parity	No	No
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Xeon 5500 Series	Intel Pentium E5000 Series for Desktop
Processor codenameDiffers	Nehalem EP	Wolfdale
Thermal Design Power (TDP)Differs	80 W	65 W
TcaseDiffers	76 °C	74.1 °C
Processor socketDiffers	Socket B (LGA 1366)	LGA 775 (Socket T)
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	228 M
Processing Die sizeKnown for one	Unknown — not stated by the source	82 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	13
SteppingDiffers	D0	R0
ECC supported by processorDiffers	Yes	No
System bus rateKnown for one	4.8 GT/s	Unknown — not stated by the source
Number of QPI linksKnown for one	2	Unknown — not stated by the source
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 MHz	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Known for one	19.2 GB/s	Unknown — not stated by the source
Memory4 differ
Internal memoryDiffers	3 GB	2 GB
Maximum internal memoryDiffers	96 GB	4 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Differs	3 x 1 GB	1 x 2 GB
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Memory channelsKnown for one	Triple-channel	Unknown — not stated by the source
Storage2 differ
Total storage capacityKnown for one	Unknown — not stated by the source	320 GB
Optical drive typeDiffers	DVD-RW	DVD±RW
HDD interface	SATA II	SATA II
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Card reader integratedDiffers	Yes	No
Floppy drive installedKnown for one	Unknown — not stated by the source	No
HDD capacityKnown for one	500 GB	Unknown — not stated by the source
Compatible memory cardsKnown for one	CF, MMC, SD, xD	Unknown — not stated by the source
Graphicsidentical
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	AMD Radeon 3100
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.256 GB
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
Performance1 differ
Product typeDiffers	Workstation	PC
Networkidentical
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Wi-FiKnown for one	Unknown — not stated by the source	No
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers	10	6
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Ethernet LAN (RJ-45) portsDiffers	2	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	0	1
DVI portKnown for one	Unknown — not stated by the source	No
PS/2 ports quantityDiffers	0	2
Firewire (IEEE 1394) portsDiffers	2	0
Serial ports quantity	1	1
Parallel ports quantityDiffers	0	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 x1 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 slots	1	1
PCI slots	2	2
Power1 differ
Power requirementsDiffers	100-240V; 50/60Hz	230 V, 4 A, 50 Hz
Power consumption (typical)Known for one	Unknown — not stated by the source	350 W
Power supplyKnown for one	1060 W	Unknown — not stated by the source
Designidentical
Chassis type	Tower	Tower
Product colourKnown for one	Unknown — not stated by the source	Black
External drive baysKnown for one	Unknown — not stated by the source	2 x 5.25", 1 x 3.5"
Internal drive baysKnown for one	Unknown — not stated by the source	1 x 3.5"
Software1 differ
Operating system installedDiffers	Windows 7 Professional	FreeDOS
Drivers includedKnown for one	Unknown — not stated by the source	Yes
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
Displayidentical
Display included	No	No
Processor special features8 differ
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Embedded options availableDiffers	No	Yes
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 SwitchingDiffers	Yes	No
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)Differs	Yes	No
Intel Virtualization Technology (VT-x)Differs	Yes	2
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
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® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	37100	35300
Processor codeDiffers	SLBKC	SLB9U
Thermal Monitoring TechnologiesDiffers	No	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	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
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
Audio1 differ
Audio systemDiffers	ADI 1988 A	HD Realtek ALC662
Packaging contentidentical
Remote control includedKnown for one	Unknown — not stated by the source	No
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	EnergyStar, CE
Other featuresidentical
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Optical driveidentical
CD read speedKnown for one	40x	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	210 mm	Unknown — not stated by the source
DepthKnown for one	579 mm	Unknown — not stated by the source
HeightKnown for one	485 mm	Unknown — not stated by the source
WeightKnown for one	24.9 kg	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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