Product comparison · 2 pcs/workstations

Lenovo ThinkStation E20 + ThinkVision L2251p vs TERRA PC 4000

75specifications compared
35differ
40identical
57known for one product only

Key differences

Processor family
- ThinkStation E20 + ThinkVision L2251p:Intel® Core™ i3
- TERRA PC 4000:Intel® Core™2 Duo
Processor model
- ThinkStation E20 + ThinkVision L2251p:i3-530
- TERRA PC 4000:E7500
Processor threads
- ThinkStation E20 + ThinkVision L2251p:4
- TERRA PC 4000:2
Processor cache
- ThinkStation E20 + ThinkVision L2251p:4 MB
- TERRA PC 4000:3 MB
Processor cache type
- ThinkStation E20 + ThinkVision L2251p:Smart Cache
- TERRA PC 4000:L2
Bus type
- ThinkStation E20 + ThinkVision L2251p:DMI
- TERRA PC 4000:FSB
Processor lithography
- ThinkStation E20 + ThinkVision L2251p:32 nm
- TERRA PC 4000:45 nm
Processor codename
- ThinkStation E20 + ThinkVision L2251p:Clarkdale
- TERRA PC 4000:Wolfdale

Side by side

Differences highlightedShow differences only

Comparison of ThinkStation E20 + ThinkVision L2251p, TERRA PC 4000
132 specifications	A Lenovo ThinkStation E20 + ThinkVision L2251p View product	B TERRA TERRA PC 4000 View product
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™2 Duo
Processor modelDiffers	i3-530	E7500
Processor cores	2	2
Processor threadsDiffers	4	2
Processor frequency	2.93 GHz	2.93 GHz
Processor cacheDiffers	4 MB	3 MB
Processor cache typeDiffers	Smart Cache	L2
Processor front side busKnown for one	Unknown — not stated by the source	1066 MHz
Bus typeDiffers	DMI	FSB
FSB Parity	No	No
Processor lithographyDiffers	32 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-500 Desktop Series	Intel Core 2 Duo E7000 Series
Processor codenameDiffers	Clarkdale	Wolfdale
Thermal Design Power (TDP)Differs	73 W	65 W
TcaseDiffers	72.6 °C	74.1 °C
Processor socketDiffers	LGA 1156 (Socket H)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	382 M	228 M
Processing Die sizeDiffers	81 mm²	82 mm²
CPU multiplier (bus/core ratio)Differs	22	11
SteppingDiffers	C2	R0
ECC supported by processor	No	No
Processor generationKnown for one	Intel® Core™ i3	Unknown — not stated by the source
System bus rateKnown for one	2.5 GT/s	Unknown — not stated by the source
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16, 2x8	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
Maximum internal memory supported by processorKnown for one	16 GB	Unknown — not stated by the source
Memory types supported by processorKnown for one	DDR3 1066/1333	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Known for one	21 GB/s	Unknown — not stated by the source
Memory3 differ
Internal memory	2 GB	2 GB
Maximum internal memoryDiffers	16 GB	4 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 2 GB
Memory clock speedDiffers	1333 MHz	800 MHz
Memory channelsKnown for one	Dual-channel	Unknown — not stated by the source
Storage2 differ
Total storage capacityKnown for one	Unknown — not stated by the source	160 GB
Optical drive typeKnown for one	Unknown — not stated by the source	DVD±RW
HDD interfaceDiffers	SATA	SATA II
HDD speed	7200 RPM	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
Graphicsidentical
On-board graphics card	Yes	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
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelKnown for one	Intel® HD Graphics	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	2	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	733 MHz	Unknown — not stated by the source
Performance1 differ
Product typeDiffers	Workstation	PC
Audio output channelsKnown for one	Unknown — not stated by the source	5.1 channels
Motherboard chipsetKnown for one	Intel® 3450	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 & interfaces2 differ
USB 2.0 ports quantityDiffers	10	6
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI portKnown for one	Unknown — not stated by the source	No
PS/2 ports quantity	2	2
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
Serial ports quantity	1	1
Parallel ports quantityDiffers	0	1
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 slotsKnown for one	Unknown — not stated by the source	1
PCI slotsKnown for one	Unknown — not stated by the source	2
Poweridentical
Power requirementsKnown for one	Unknown — not stated by the source	230 V, 4 A, 50 Hz
Power consumption (typical)Known for one	Unknown — not stated by the source	350 W
Power supply typeKnown for one	100 - 240 VAC, 50/60 Hz	Unknown — not stated by the source
Power supplyKnown for one	280 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", 2 x 3.5"
Internal drive baysKnown for one	Unknown — not stated by the source	2 x 3.5"
Software1 differ
Operating system installedDiffers	Windows XP 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 features8 differ
Embedded options available	No	No
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 Switching	No	No
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	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)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	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	46472	36503
Processor codeKnown for one	Unknown — not stated by the source	SLB9Z
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring TechnologiesDiffers	No	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	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
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Physical Address Extension (PAE)Known for one	36 bit	Unknown — not stated by the source
Supported instruction setsKnown for one	SSE4.2	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	Realtek ALC662	HD Realtek ALC662
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
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
Weight & dimensionsidentical
WidthKnown for one	175 mm	Unknown — not stated by the source
DepthKnown for one	430.8 mm	Unknown — not stated by the source
HeightKnown for one	425.2 mm	Unknown — not stated by the source
WeightKnown for one	11.2 kg	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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