Product comparison · 2 pcs/workstations

HP Compaq dx2420 vs Lenovo ThinkStation D20

81specifications compared
48differ
33identical
54known for one product only

Key differences

Processor family
- Compaq dx2420:Intel® Pentium®
- ThinkStation D20:Intel® Xeon® 5000 Sequence
Processor model
- Compaq dx2420:E5200
- ThinkStation D20:X5550
Processor cores
- Compaq dx2420:2
- ThinkStation D20:4
Processor threads
- Compaq dx2420:2
- ThinkStation D20:8
Processor frequency
- Compaq dx2420:2.5 GHz
- ThinkStation D20:2.66 GHz
Processor cache
- Compaq dx2420:2 MB
- ThinkStation D20:8 MB
Processor cache type
- Compaq dx2420:L2
- ThinkStation D20:Smart Cache
Bus type
- Compaq dx2420:FSB
- ThinkStation D20:QPI

Side by side

Differences highlightedShow differences only

Comparison of Compaq dx2420, ThinkStation D20
135 specifications	A HP Compaq dx2420 View product	B Lenovo ThinkStation D20 View product
Processor18 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5200	X5550
Processor coresDiffers	2	4
Processor threadsDiffers	2	8
Processor frequencyDiffers	2.5 GHz	2.66 GHz
Processor cacheDiffers	2 MB	8 MB
Processor cache typeDiffers	L2	Smart Cache
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Bus typeDiffers	FSB	QPI
FSB Parity	No	No
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Pentium E5000 Series for Desktop	Intel Xeon 5500 Series
Processor codenameDiffers	Wolfdale	Nehalem EP
Thermal Design Power (TDP)Differs	65 W	95 W
TcaseDiffers	74.1 °C	75 °C
Processor socketDiffers	LGA 775 (Socket T)	Socket B (LGA 1366)
Number of Processing Die TransistorsDiffers	228 M	731 M
Processing Die sizeDiffers	82 mm²	263 mm²
CPU multiplier (bus/core ratio)Differs	12.5	20
SteppingDiffers	M0	D0
ECC supported by processorDiffers	No	Yes
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.06 GHz
System bus rateKnown for one	Unknown — not stated by the source	6.4 GT/s
Processor system typeKnown for one	Unknown — not stated by the source	DP
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	144 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800,1066,1333 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	32 GB/s
Memory3 differ
Internal memoryDiffers	3 GB	8 GB
Maximum internal memoryDiffers	4 GB	192 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR3-SDRAM
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Memory layout (slots x size)Known for one	Unknown — not stated by the source	4 x 2 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Triple-channel
Storage2 differ
Total storage capacityKnown for one	500 GB	Unknown — not stated by the source
Optical drive typeDiffers	DVD Super Multi	DVD-RW
HDD interface	SATA	SATA
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Card reader integratedDiffers	No	Yes
Storage drive controllerKnown for one	SATA 3.0Gb/s NCQ SMART IV	Unknown — not stated by the source
HDD capacityKnown for one	Unknown — not stated by the source	1.5 TB
Compatible memory cardsKnown for one	Unknown — not stated by the source	CF, MMC, SD, xD
Graphicsidentical
Discrete graphics card modelKnown for one	Intel® GMA 3100	Unknown — not stated by the source
Video adapter, busKnown for one	PCI Express x16	Unknown — not stated by the source
Video adapter featuresKnown for one	Microsoft DirectX9, DirectXVA, VMR9, GDI/GDI+; OpenGL 1.4	Unknown — not stated by the source
Graphics cardKnown for one	Unknown — not stated by the source	Quadro FX 4800
Performance1 differ
Product typeDiffers	PC	Workstation
Optical driveidentical
LightScribeKnown for one	Yes	Unknown — not stated by the source
CD read speedKnown for one	Unknown — not stated by the source	40x
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers	6	10
Ethernet LAN (RJ-45) portsDiffers	1	2
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	1	0
PS/2 ports quantityDiffers	2	0
Serial ports quantityDiffers	0	1
Parallel ports quantity	0	0
Line-inKnown for one	Unknown — not stated by the source	Yes
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	2
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
I/O portsKnown for one	Unknown — not stated by the source	1 eSATA, 5 SATA Gen 2, 5 SAS
Expansion slotsidentical
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
PCI Express x16 slots	1	1
Expansion slotsKnown for one	1 x PCI	Unknown — not stated by the source
PCI slotsKnown for one	Unknown — not stated by the source	2
Power1 differ
Power requirementsDiffers	90 – 264 / 100 – 240 VAC, 50/60 Hz, 47 – 63 Hz	100-240V@50-60Hz
Power consumption (typical)Known for one	300 W	Unknown — not stated by the source
Power supplyKnown for one	Unknown — not stated by the source	1060 W
Design2 differ
Chassis typeDiffers	Micro Tower	Tower
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
External drive baysDiffers	2 x 5.25", 1 x 3.5"	3.5" x 1, 5.25" x 3
Country of originKnown for one	China	Unknown — not stated by the source
Internal drive baysKnown for one	Unknown — not stated by the source	3.5" x 5
Softwareidentical
Operating system installedKnown for one	Windows Vista Business	Unknown — not stated by the source
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 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 includedDiffers	Yes	No
Display diagonalKnown for one	48.3 cm (19")	Unknown — not stated by the source
Display resolutionKnown for one	1280 x 1024 pixels	Unknown — not stated by the source
Contrast ratio (typical)Known for one	800:1	Unknown — not stated by the source
Display brightnessKnown for one	300 cd/m²	Unknown — not stated by the source
Viewing angle, horizontalKnown for one	160°	Unknown — not stated by the source
Viewing angle, verticalKnown for one	160°	Unknown — not stated by the source
DisplayKnown for one	TFT	Unknown — not stated by the source
Processor special features10 differ
CPU configuration (max)Differs	1	2
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	No	Yes
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	No	Yes
Intel Virtualization Technology (VT-x)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
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	37212	37106
Processor package sizeDiffers	37.5 x 37.5 mm	42.5 x 45 mm
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Turbo Boost TechnologyDiffers	No	1.0
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
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor codeKnown for one	Unknown — not stated by the source	SLBF5
Audio1 differ
Audio systemDiffers	HD	ADI 1988 A
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-30 - 60 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	165 mm	210 mm
DepthDiffers	357 mm	579 mm
HeightDiffers	365 mm	485 mm
WeightDiffers	10.2 kg	24.9 kg
Packaging contentidentical
Mouse included	Yes	Yes
Keyboardidentical
Keyboard typeKnown for one	Unknown — not stated by the source	Preferred 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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