Product comparison · 2 pcs/workstations

HP Compaq 4000 Pro Small Form Factor vs HP Pro XT281ES PC Intel® Core™ i3 i3-550

108specifications compared
40differ
68identical
31known for one product only

Key differences

The HP Pro XT281ES PC Intel® Core™ i3 i3-550 has 2 more processor threads than the HP Compaq 4000 Pro Small Form Factor (4 vs 2). The HP Pro XT281ES PC Intel® Core™ i3 i3-550 has 2 MB more processor cache than the HP Compaq 4000 Pro Small Form Factor (4 MB vs 2 MB). The HP Compaq 4000 Pro Small Form Factor has 13 nm more processor lithography than the HP Pro XT281ES PC Intel® Core™ i3 i3-550 (45 nm vs 32 nm). Only the HP Pro XT281ES PC Intel® Core™ i3 i3-550 has Intel Dual Display Capable Technology. Only the HP Pro XT281ES PC Intel® Core™ i3 i3-550 has Intel FDI Technology.

Processor family
- Compaq 4000 Pro Small Form Factor:Intel® Pentium®
- Pro XT281ES PC Intel® Core™ i3 i3-550:Intel® Core™ i3
Processor model
- Compaq 4000 Pro Small Form Factor:E5800
- Pro XT281ES PC Intel® Core™ i3 i3-550:i3-550
Processor threads
- Compaq 4000 Pro Small Form Factor:2
- Pro XT281ES PC Intel® Core™ i3 i3-550:4
Processor cache
- Compaq 4000 Pro Small Form Factor:2 MB
- Pro XT281ES PC Intel® Core™ i3 i3-550:4 MB
Bus type
- Compaq 4000 Pro Small Form Factor:FSB
- Pro XT281ES PC Intel® Core™ i3 i3-550:DMI
Processor lithography
- Compaq 4000 Pro Small Form Factor:45 nm
- Pro XT281ES PC Intel® Core™ i3 i3-550:32 nm
Processor codename
- Compaq 4000 Pro Small Form Factor:Wolfdale
- Pro XT281ES PC Intel® Core™ i3 i3-550:Clarkdale
Thermal Design Power (TDP)
- Compaq 4000 Pro Small Form Factor:65 W
- Pro XT281ES PC Intel® Core™ i3 i3-550:73 W

Side by side

Differences highlightedShow differences only

Comparison of Compaq 4000 Pro Small Form Factor, XT281ES
139 specifications	A HP Compaq 4000 Pro Small Form Factor View product	B HP Pro XT281ES PC Intel® Core™ i3 i3-550 Model XT281ES View product
Processor15 differ
Processor familyDiffers	Intel® Pentium®	Intel® Core™ i3
Processor generationKnown for one	Unknown — not stated by the source	Intel® Core™ i3
Processor modelDiffers	E5800	i3-550
Processor threadsDiffers	2	4
Processor cacheDiffers	2 MB	4 MB
Bus typeDiffers	FSB	DMI
System bus rateKnown for one	Unknown — not stated by the source	2.5 GT/s
Processor lithographyDiffers	45 nm	32 nm
Processor seriesDiffers	Intel Pentium E5000 Series for Desktop	Intel Core i3-500 Desktop Series
Processor codenameDiffers	Wolfdale	Clarkdale
Thermal Design Power (TDP)Differs	65 W	73 W
TcaseDiffers	74.1 °C	72.6 °C
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
Processor socketDiffers	LGA 775 (Socket T)	LGA 1156 (Socket H)
Number of Processing Die TransistorsDiffers	228 M	382 M
Processing Die sizeDiffers	82 mm²	81 mm²
CPU multiplier (bus/core ratio)Differs	16	24
SteppingDiffers	R0	K0
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	16 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	1066,1333 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	21 GB/s
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Memory2 differ
Maximum internal memoryKnown for one	Unknown — not stated by the source	16 GB
Memory layout (slots x size)Differs	1 x 4 GB	2 x 2 GB
Memory slotsDiffers	2x DIMM	4x DIMM
Memory channelsKnown for one	Unknown — not stated by the source	Dual-channel
Storage1 differ
Total storage capacityDiffers	500 GB	750 GB
Storage mediaKnown for one	HDD	Unknown — not stated by the source
Total HDDs capacityKnown for one	500 GB	Unknown — not stated by the source
Graphics2 differ
Discrete graphics card modelDiffers	Intel® GMA 4500	AMD Radeon HD 6570
Discrete graphics card memoryKnown for one	Unknown — not stated by the source	2 GB
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
Number of displays supported (on-board graphics)Known for one	Unknown — not stated by the source	2
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	733 MHz
Graphics card familyDiffers	Intel	AMD
Performance1 differ
Motherboard chipsetDiffers	Intel B43 Express	Intel® H57
Ports & interfaces1 differ
Line-outKnown for one	Unknown — not stated by the source	Yes
PS/2 ports quantityDiffers	2	0
S/PDIF out portKnown for one	Unknown — not stated by the source	Yes
Parallel ports quantityKnown for one	Unknown — not stated by the source	0
Expansion slots2 differ
Number of 3.5" baysDiffers	2	3
PCI Express x1 slotsDiffers	1	3
PCI slotsKnown for one	2	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	240 W	300 W
Design2 differ
Chassis typeDiffers	SFF	Mini Tower
Number of 5.25" baysDiffers	1	2
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 7 Home Premium
Processor special features8 differ
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	45 nm
Intel Dual Display Capable TechnologyDiffers	No	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor ARK IDDiffers	42802	48505
Processor codeDiffers	SLGTG	SLBUD
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 35 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Weight & dimensions4 differ
WidthDiffers	338 mm	185 mm
DepthDiffers	378.5 mm	416 mm
HeightDiffers	100 mm	385 mm
WeightDiffers	7.6 kg	7.58 kg

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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