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Product comparison · 2 pcs/workstations

Lenovo ThinkCentre A58 Tower (7515M9G) vs Lenovo ThinkStation E20

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  • 82specifications compared
  • 40differ
  • 42identical
  • 46known for one product only

Key differences

  • Processor family
    • Intel® Pentium®
    • Intel® Core™ i5
  • Processor model
    • E5400
    • i5-650
  • Processor threads
    • 2
    • 4
  • Processor frequency
    • 2.7 GHz
    • 3.2 GHz
  • Processor cache
    • 2 MB
    • 4 MB
  • Processor cache type
    • L2
    • Smart Cache
  • Bus type
    • FSB
    • DMI
  • Processor lithography
    • 45 nm
    • 32 nm

Side by side

Differences highlightedShow differences only
128 specifications
A

Lenovo

ThinkCentre A58 Tower (7515M9G)View product
B

Lenovo

ThinkStation E20View product
Processor17 differ
Processor familyDiffersIntel® Pentium®Intel® Core™ i5
Processor modelDiffersE5400i5-650
Processor threadsDiffers24
Processor frequencyDiffers2.7 GHz3.2 GHz
Processor cacheDiffers2 MB4 MB
Processor cache typeDiffersL2Smart Cache
Processor front side busKnown for one800 MHz
Bus typeDiffersFSBDMI
Processor lithographyDiffers45 nm32 nm
Processor seriesDiffersIntel Pentium E5000 Series for DesktopIntel Core i5-600 Desktop Series
Processor codenameDiffersWolfdaleClarkdale
Thermal Design Power (TDP)Differs45, 6573 W
TcaseDiffers74.1 °C72.6 °C
Processor socketDiffersLGA 775 (Socket T)LGA 1156 (Socket H)
Number of Processing Die TransistorsDiffers228 M382 M
Processing Die sizeDiffers82 mm²81 mm²
CPU multiplier (bus/core ratio)Differs13.524
SteppingDiffersR0C2
Processor generationKnown for oneIntel® Core™ i5
Processor boost frequencyKnown for one3.46 GHz
System bus rateKnown for one2.5 GT/s
Maximum number of PCI Express lanesKnown for one16
PCI Express configurationsKnown for one1x16, 2x8
PCI Express slots versionKnown for one2.0
Maximum internal memory supported by processorKnown for one16 GB
Memory types supported by processorKnown for oneDDR3 1066/1333
Memory bandwidth supported by processor (max)Known for one21 GB/s
Memory5 differ
Internal memoryDiffers1 GB4 GB
Maximum internal memoryDiffers4 GB16 GB
Internal memory typeDiffersDDR2-SDRAMDDR3-SDRAM
Memory layout (slots x size)Differs1 x 1 GB2 x 2 GB
Memory clock speedDiffers800 MHz1333 MHz
Memory channelsKnown for oneDual-channel
Storageidentical
Total storage capacityKnown for one250 GB
Optical drive typeKnown for oneDVD-ROM
Floppy drive installedKnown for oneNo
Number of HDDs installedKnown for one1
HDD capacityKnown for one500 GB
Graphicsidentical
Discrete graphics card modelKnown for oneIntel® GMA X4500
On-board graphics card familyKnown for oneIntel® HD Graphics
On-board graphics card modelKnown for oneIntel® HD Graphics
Number of displays supported (on-board graphics)Known for one2
On-board graphics card base frequencyKnown for one733 MHz
Performance1 differ
Product typeDiffersPCWorkstation
Motherboard chipsetKnown for oneIntel® 3450
Networkidentical
Ethernet LANKnown for oneYes
Cabling technologyKnown for one10/100/1000Base-T(X)
Wi-FiKnown for oneNo
Networking featuresKnown for oneGigabit Ethernet
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers68
HDMI ports quantityKnown for one0
Line-outKnown for oneYes
Line-inKnown for oneYes
DVI portKnown for oneNo
Firewire (IEEE 1394) portsDiffers02
Parallel ports quantityKnown for one1
eSATA ports quantityKnown for one1
Expansion slotsidentical
PCI Express x16 slotsKnown for one2
Poweridentical
Power supply input voltageKnown for one110 - 220 V
Power supply input frequencyKnown for one50 - 60 Hz
Power supply typeKnown for one100 - 240 VAC, 50/60 Hz
Designidentical
Product colourKnown for oneBlack
Softwareidentical
Optional operating system suppliedKnown for oneWindows XP Professional
Processor special features12 differ
Intel Dual Display Capable TechnologyDiffersNoYes
Intel FDI TechnologyDiffersNoYes
Intel Trusted Execution TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)DiffersNoYes
Intel Virtualization Technology (VT-x)Differs2Yes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Processor ARK IDDiffers4047843546
Processor codeKnown for oneSLGH7
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Turbo Boost TechnologyDiffersNo1.0
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Graphics & IMC lithographyKnown for one45 nm
Physical Address Extension (PAE)Known for one36 bit
Supported instruction setsKnown for oneSSE4.2
Audio1 differ
Audio systemDiffersALC662Realtek ALC662
Weight & dimensions2 differ
DepthDiffers442 mm430.8 mm
HeightDiffers412 mm425.2 mm
WeightKnown for one11.2 kg
Packaging contentidentical
Mouse includedKnown for oneYes
Remote control includedKnown for oneNo
Other featuresidentical
TV tuner integratedKnown for oneNo

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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