Product comparison · 2 pcs/workstations

Lenovo ThinkStation D20 + ThinkVision L2251p vs TERRA PC-NETTOP 2500 GREENLINE

75specifications compared
45differ
30identical
44known for one product only

Key differences

Processor family
- ThinkStation D20 + ThinkVision L2251p:Intel® Xeon® 5000 Sequence
- TERRA PC-NETTOP 2500 GREENLINE:Intel Atom®
Processor model
- ThinkStation D20 + ThinkVision L2251p:E5506
- TERRA PC-NETTOP 2500 GREENLINE:230
Processor cores
- ThinkStation D20 + ThinkVision L2251p:4
- TERRA PC-NETTOP 2500 GREENLINE:1
Processor threads
- ThinkStation D20 + ThinkVision L2251p:4
- TERRA PC-NETTOP 2500 GREENLINE:2
Processor frequency
- ThinkStation D20 + ThinkVision L2251p:2.13 GHz
- TERRA PC-NETTOP 2500 GREENLINE:1.6 GHz
Processor cache
- ThinkStation D20 + ThinkVision L2251p:4 MB
- TERRA PC-NETTOP 2500 GREENLINE:0.512 MB
Processor cache type
- ThinkStation D20 + ThinkVision L2251p:Smart Cache
- TERRA PC-NETTOP 2500 GREENLINE:L2
Bus type
- ThinkStation D20 + ThinkVision L2251p:QPI
- TERRA PC-NETTOP 2500 GREENLINE:FSB

Side by side

Differences highlightedShow differences only

Comparison of ThinkStation D20 + ThinkVision L2251p, TERRA PC-NETTOP 2500 GREENLINE
119 specifications	A Lenovo ThinkStation D20 + ThinkVision L2251p View product	B TERRA TERRA PC-NETTOP 2500 GREENLINE View product
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel Atom®
Processor modelDiffers	E5506	230
Processor coresDiffers	4	1
Processor threadsDiffers	4	2
Processor frequencyDiffers	2.13 GHz	1.6 GHz
Processor cacheDiffers	4 MB	0.512 MB
Processor cache typeDiffers	Smart Cache	L2
Processor front side busKnown for one	Unknown — not stated by the source	533 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 Atom 200 Series
Processor codenameDiffers	Nehalem EP	Diamondville
Thermal Design Power (TDP)Differs	80 W	4 W
TcaseDiffers	76 °C	85.2 °C
Processor socketDiffers	Socket B (LGA 1366)	BGA 437
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	47 M
Processing Die sizeKnown for one	Unknown — not stated by the source	26 mm²
CPU multiplier (bus/core ratio)Differs	16	12
SteppingDiffers	D0	C0
ECC supported by processorDiffers	Yes	No
System bus rateKnown for one	4.8 GT/s	Unknown — not stated by the source
Processor system typeKnown for one	DP	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
Memory2 differ
Internal memoryDiffers	3 GB	2 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Maximum internal memoryKnown for one	96 GB	Unknown — not stated by the source
Memory layout (slots x size)Known for one	3 x 1 GB	Unknown — not stated by the source
Memory slotsKnown for one	12x DIMM	Unknown — not stated by the source
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
ECCKnown for one	Yes	Unknown — not stated by the source
Memory channelsKnown for one	Triple-channel	Unknown — not stated by the source
Storage3 differ
Total storage capacityKnown for one	Unknown — not stated by the source	250 GB
Optical drive typeKnown for one	Unknown — not stated by the source	No
HDD interfaceDiffers	SATA	SATA II
HDD speedDiffers	7200 RPM	5400 RPM
Card reader integratedDiffers	Yes	No
Floppy drive installedKnown for one	Unknown — not stated by the source	No
HDD capacityKnown for one	250 GB	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	NVIDIA® ION™
Graphics card familyKnown for one	Unknown — not stated by the source	Nvidia
Performance1 differ
Product typeDiffers	Workstation	PC
Audio output channelsKnown for one	Unknown — not stated by the source	2.0 channels
Motherboard chipsetKnown for one	Intel® 5520	Unknown — not stated by the source
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 & interfaces5 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 quantity	0	0
DVI portKnown for one	Unknown — not stated by the source	Yes
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) portsDiffers	2	0
Serial ports quantityDiffers	1	0
Parallel ports quantity	0	0
Poweridentical
Power requirementsKnown for one	Unknown — not stated by the source	100-240V
Power supply input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Design1 differ
Chassis typeDiffers	Tower	SFF
Product colourKnown for one	Unknown — not stated by the source	Black
Software1 differ
Operating system installedDiffers	Windows 7 Professional	FreeDOS
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Display1 differ
Display includedDiffers	Yes	No
Display diagonalKnown for one	55.9 cm (22")	Unknown — not stated by the source
ResolutionKnown for one	1680 x 1050 pixels	Unknown — not stated by the source
Processor special features11 differ
Embedded options available	No	No
Enhanced Intel SpeedStep TechnologyDiffers	Yes	No
Execute Disable Bit	Yes	Yes
Idle StatesDiffers	Yes	No
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 StateDiffers	Yes	No
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	No
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	37096	35635
Processor codeDiffers	SLBF8	SLB6Z
Processor package sizeDiffers	42.5 x 45 mm	22 x 22 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE2, SSE3, SSSE3
Thermal Monitoring Technologies	No	No
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
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
CPU configuration (max)Known for one	2	Unknown — not stated by the source
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	High Definition Audio	HD
Weight & dimensions3 differ
WidthDiffers	210 mm	26 mm
DepthDiffers	602 mm	175 mm
HeightDiffers	434 mm	152 mm
WeightKnown for one	25 kg	Unknown — not stated by the source
Packaging contentidentical
Remote control includedKnown for one	Unknown — not stated by the source	No
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

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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