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Product comparison · 2 pcs/workstations

HP Compaq dc7900 MT vs Lenovo ThinkStation D20 (415518G), HU

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  • 82specifications compared
  • 49differ
  • 33identical
  • 51known for one product only

Key differences

The Lenovo ThinkStation D20 (415518G), HU has 2 more processor cores than the HP Compaq dc7900 MT (4 vs 2). The Lenovo ThinkStation D20 (415518G), HU has 6 more processor threads than the HP Compaq dc7900 MT (8 vs 2). The HP Compaq dc7900 MT has 0.34 GHz more processor frequency than the Lenovo ThinkStation D20 (415518G), HU (2.6 GHz vs 2.26 GHz). Only the Lenovo ThinkStation D20 (415518G), HU has ECC supported by processor. Only the HP Compaq dc7900 MT has display included.

  • Processor family
    • Intel® Pentium®
    • Intel® Xeon® 5000 Sequence
  • Processor model
    • E5300
    • E5520
  • Processor cores
    • 2
    • 4
  • Processor threads
    • 2
    • 8
  • Processor frequency
    • 2.6 GHz
    • 2.26 GHz
  • Processor cache
    • 2 MB
    • 8 MB
  • Processor cache type
    • L2
    • Smart Cache
  • Bus type
    • FSB
    • QPI

Side by side

Differences highlightedShow differences only
133 specifications
A

HP

Compaq dc7900 MTView product
B

Lenovo

ThinkStation D20 (415518G), HUView product
Processor18 differ
Processor familyDiffersIntel® Pentium®Intel® Xeon® 5000 Sequence
Processor modelDiffersE5300E5520
Processor coresDiffers24
Processor threadsDiffers28
Processor frequencyDiffers2.6 GHz2.26 GHz
Processor cacheDiffers2 MB8 MB
Processor cache typeDiffersL2Smart Cache
Processor front side busKnown for one800 MHz
Bus typeDiffersFSBQPI
Processor seriesDiffersIntel Pentium E5000 Series for DesktopIntel Xeon 5500 Series
Processor codenameDiffersWolfdaleNehalem EP
Thermal Design Power (TDP)Differs65 W80 W
TcaseDiffers74.1 °C72 °C
Processor socketDiffersLGA 775 (Socket T)Socket B (LGA 1366)
Number of Processing Die TransistorsDiffers228 M731 M
Processing Die sizeDiffers82 mm²263 mm²
CPU multiplier (bus/core ratio)Differs1317
SteppingDiffersR0D0
ECC supported by processorDiffersNoYes
Processor boost frequencyKnown for one2.53 GHz
System bus rateKnown for one5.86 GT/s
Processor system typeKnown for oneDP
Number of QPI linksKnown for one2
Maximum internal memory supported by processorKnown for one144 GB
Memory types supported by processorKnown for oneDDR3-SDRAM
Memory clock speeds supported by processorKnown for one800,1066 MHz
Memory bandwidth supported by processor (max)Known for one25.6 GB/s
Memory5 differ
Internal memoryDiffers3 GB4 GB
Maximum internal memoryDiffers16 GB96 GB
Internal memory typeDiffersDDR2-SDRAMDDR3-SDRAM
Memory layout (slots x size)Differs3 x 1 GB2 x 2 GB
Memory clock speedDiffers800 MHz1066 MHz
Memory channelsKnown for oneTriple-channel
Storage1 differ
Total storage capacityKnown for one250 GB
Optical drive typeDiffersDVD Super MultiDVD-RW
HDD speedKnown for one7200 RPM
Floppy drive installedKnown for oneNo
Storage drive controllerKnown for oneSATA 3.0Gb/s
HDD capacityKnown for one150 GB
Compatible memory cardsKnown for oneCF, MMC, SD, xD
Graphicsidentical
On-board graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneIntel® GMA 4500M
Video adapter, busKnown for onePCI Express x16
Graphics cardKnown for oneQuadro FX 1800
Performance1 differ
Product typeDiffersPCWorkstation
Optical driveidentical
LightScribeKnown for oneYes
CD read speedKnown for one40x
Networkidentical
Ethernet LANKnown for oneYes
Wi-FiKnown for oneNo
Networking featuresKnown for oneGigabit Ethernet
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers810
HDMI ports quantityKnown for one0
Ethernet LAN (RJ-45) portsDiffers12
VGA (D-Sub) ports quantityDiffers10
DVI portKnown for oneNo
PS/2 ports quantityDiffers20
Firewire (IEEE 1394) portsDiffers02
Line-inKnown for oneYes
eSATA ports quantityKnown for one1
Expansion slotsidentical
PCI Express x1 slotsKnown for one2
PCI slotsKnown for one2
Power1 differ
Power supplyDiffers365 W1060 W
Power supply input voltageKnown for one100 - 240 V
Power supply input frequencyKnown for one50 - 60 Hz
Power requirementsKnown for one100-240V; 50/60Hz
Design1 differ
Chassis typeDiffersMini TowerTower
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneKensington
External drive baysKnown for one3 x 5.25", 1 x 3.5"
Country of originKnown for oneChina
Softwareidentical
Operating system installedKnown for oneWindows Vista Business
Optional operating system suppliedKnown for oneWindows XP Professional
Compatible operating systemsKnown for oneWindows XP Pro SP1a/SP2a 32/64-bit Red Hat Enterprise Linux 5.0 Windows Vista Business Windows Vista Business 64 Windows Vista Enterprise Edition 32-bit Windows Vista Enterprise Edition 64-bit Windows Vista Ultimate Windows Vista Ultimate 64-Bit
Display1 differ
Display includedDiffersYesNo
Processor special features11 differ
CPU configuration (max)Differs12
Embedded options availableDiffersYesNo
Intel Demand Based SwitchingDiffersNoYes
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
Processor ARK IDDiffers3530040200
Processor codeDiffersSLB9USLBFD
Thermal Monitoring TechnologiesDiffersYesNo
Intel® Turbo Boost TechnologyDiffersNo1.0
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Smart CacheKnown for oneYes
Physical Address Extension (PAE)Known for one40 bit
Processor package sizeKnown for one42.5 x 45 mm
Audio1 differ
Audio systemDiffersHDAADI 1988 A
Operational conditionsidentical
Storage temperature (T-T)Known for one-30 - 60 °C
Operating relative humidity (H-H)Known for one10 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Weight & dimensions4 differ
WidthDiffers177 mm210 mm
DepthDiffers452 mm579 mm
HeightDiffers447 mm485 mm
WeightDiffers11.8 kg24.9 kg
Packaging contentidentical
Remote control includedKnown for oneNo
Mouse includedKnown for oneYes
Other featuresidentical
TV tuner integratedKnown for oneNo
Keyboardidentical
Keyboard typeKnown for onePreferred Pro USB

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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