Product comparison · 2 pcs/workstations

Lenovo C20 + ThinkVision L2321x vs Lenovo ThinkCentre A70 + ThinkVision L2251p

76specifications compared
35differ
41identical
41known for one product only

Key differences

The Lenovo C20 + ThinkVision L2321x has 2 more processor cores than the Lenovo ThinkCentre A70 + ThinkVision L2251p (4 vs 2). The Lenovo C20 + ThinkVision L2321x has 2 more processor threads than the Lenovo ThinkCentre A70 + ThinkVision L2251p (4 vs 2). The Lenovo ThinkCentre A70 + ThinkVision L2251p has 0.67 GHz more processor frequency than the Lenovo C20 + ThinkVision L2321x (2.93 GHz vs 2.26 GHz). Only the Lenovo C20 + ThinkVision L2321x has ECC supported by processor. Only the Lenovo C20 + ThinkVision L2321x has Intel Demand Based Switching.

Processor family
- C20 + ThinkVision L2321x:Intel® Xeon® 5000 Sequence
- ThinkCentre A70 + ThinkVision L2251p:Intel® Core™2 Duo
Processor model
- C20 + ThinkVision L2321x:E5507
- ThinkCentre A70 + ThinkVision L2251p:E7500
Processor cores
- C20 + ThinkVision L2321x:4
- ThinkCentre A70 + ThinkVision L2251p:2
Processor threads
- C20 + ThinkVision L2321x:4
- ThinkCentre A70 + ThinkVision L2251p:2
Processor frequency
- C20 + ThinkVision L2321x:2.26 GHz
- ThinkCentre A70 + ThinkVision L2251p:2.93 GHz
Processor cache
- C20 + ThinkVision L2321x:4 MB
- ThinkCentre A70 + ThinkVision L2251p:3 MB
Processor cache type
- C20 + ThinkVision L2321x:Smart Cache
- ThinkCentre A70 + ThinkVision L2251p:L2
Bus type
- C20 + ThinkVision L2321x:QPI
- ThinkCentre A70 + ThinkVision L2251p:FSB

Side by side

Differences highlightedShow differences only

Comparison of C20 + ThinkVision L2321x, ThinkCentre A70 + ThinkVision L2251p
117 specifications	A Lenovo C20 + ThinkVision L2321x View product	B Lenovo ThinkCentre A70 + ThinkVision L2251p View product
Processor15 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Core™2 Duo
Processor modelDiffers	E5507	E7500
Processor coresDiffers	4	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	2.26 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	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 Core 2 Duo E7000 Series
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	11
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
Number of processors installedKnown 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
Memory3 differ
Internal memoryDiffers	4 GB	2 GB
Maximum internal memoryDiffers	96 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	2 x 2 GB	1 x 2 GB
Memory slotsKnown for one	Unknown — not stated by the source	2x DIMM
Memory clock speedKnown for one	1333 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
Storageidentical
Total storage capacityKnown for one	Unknown — not stated by the source	320 GB
Optical drive type	DVD-RW	DVD-RW
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
Floppy drive installedKnown for one	Unknown — not stated by the source	No
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityKnown for one	500 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	Intel® GMA X4500
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
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® 5520	Unknown — not stated by the source
Network1 differ
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Wi-FiKnown for one	Unknown — not stated by the source	No
Networking featuresDiffers	Gigabit Ethernet (10/100/1000)	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	10	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	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
Power1 differ
Power supplyDiffers	800 W	180 W
Designidentical
Chassis type	Tower	Tower
Product colour	Black	Black
Rack mountingKnown for one	Yes	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Display1 differ
Display included	Yes	Yes
Display diagonalDiffers	58.4 cm (23")	55.9 cm (22")
Display resolutionKnown for one	Unknown — not stated by the source	1680 x 1050 pixels
Contrast ratio (typical)Known for one	Unknown — not stated by the source	1000:1
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	170°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	160°
ResolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
Processor special features7 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 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	36503
Processor codeDiffers	SLBKC	SLB9Z
Processor package sizeKnown for one	Unknown — not stated by the source	37.5 x 37.5 mm
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 1988A	High Definition Audio
Weight & dimensions4 differ
WidthDiffers	130 mm	160 mm
DepthDiffers	444 mm	355 mm
HeightDiffers	427 mm	392 mm
WeightDiffers	18.5 kg	10.5 kg
Packaging contentidentical
Remote control includedKnown for one	Unknown — not stated by the source	No
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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