Product comparison · 2 pcs/workstations

HP xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation vs Lenovo ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE

26specifications compared
15differ
11identical
89known for one product only

Key differences

The HP xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation has 1.06 GHz more processor frequency than the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE (2.66 GHz vs 1.6 GHz). The HP xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation has 7 MB more processor cache than the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE (8 MB vs 1 MB). The HP xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation has 533 MHz more processor front side bus than the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE (1333 MHz vs 800 MHz). Processor family: Intel® Xeon® 5000 Sequence on the HP xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation, Intel® Pentium® Dual-Core on the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE. Product type: Workstation on the HP xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation, PC on the Lenovo ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE.

Processor family
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:Intel® Xeon® 5000 Sequence
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:Intel® Pentium® Dual-Core
Processor frequency
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:2.66 GHz
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:1.6 GHz
Processor cache
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:8 MB
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:1 MB
Processor front side bus
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:1333 MHz
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:800 MHz
Internal memory
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:2 GB
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:1 GB
Maximum internal memory
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:32 GB
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:4 GB
Product type
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:Workstation
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:PC
USB 2.0 ports quantity
- xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation:7
- ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE:8

Side by side

Differences highlightedShow differences only

Comparison of xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation, ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE
115 specifications	A HP xw8400 Intel® Xeon® 2.66GHz 2GB/250GB DVD+/-RW WVST Bus Workstation View product	B Lenovo ThinkCentre M55 Ultra Small Desktop (8795-D2G), SE View product
Processor4 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Pentium® Dual-Core
Processor modelKnown for one	X5355	Unknown — not stated by the source
Processor coresKnown for one	4	Unknown — not stated by the source
Processor threadsKnown for one	4	Unknown — not stated by the source
Processor frequencyDiffers	2.66 GHz	1.6 GHz
Processor cacheDiffers	8 MB	1 MB
Processor cache type	L2	L2
Processor front side busDiffers	1333 MHz	800 MHz
Bus typeKnown for one	FSB	Unknown — not stated by the source
FSB ParityKnown for one	Yes	Unknown — not stated by the source
Processor lithographyKnown for one	65 nm	Unknown — not stated by the source
Processor operating modesKnown for one	64-bit	Unknown — not stated by the source
Processor seriesKnown for one	Intel Xeon 5300 Series	Unknown — not stated by the source
Processor codenameKnown for one	Clovertown	Unknown — not stated by the source
Thermal Design Power (TDP)Known for one	120 W	Unknown — not stated by the source
TcaseKnown for one	70 °C	Unknown — not stated by the source
Number of processors installed	1	1
Processor socketKnown for one	LGA 771 (Socket J)	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	582 M	Unknown — not stated by the source
Processing Die sizeKnown for one	286 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	8	Unknown — not stated by the source
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Memory2 differ
Internal memoryDiffers	2 GB	1 GB
Maximum internal memoryDiffers	32 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	2 x 1 GB	Unknown — not stated by the source
ECCKnown for one	Yes	Unknown — not stated by the source
Memory upgradeKnown for one	32 GB	Unknown — not stated by the source
Storageidentical
HDD capacityKnown for one	250 GB	Unknown — not stated by the source
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Storage drive controllerKnown for one	SATA 3Gb/s	Unknown — not stated by the source
Disk subsystem controllerKnown for one	Integrated 6 channel SATA 3 Gb/s controller with RAID (0,1,5, 10) capability, integrated 4 channel SAS controller with RAID (0 or 1) capability	Unknown — not stated by the source
Diskette driveKnown for one	Yes	Unknown — not stated by the source
Storage drive typeKnown for one	250 GB	Unknown — not stated by the source
Total storage capacityKnown for one	Unknown — not stated by the source	160 GB
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-RW
Graphicsidentical
Video card featuresKnown for one	No Integrated Graphics Kit	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® GMA 3000
Performance1 differ
Product typeDiffers	Workstation	PC
Motherboard chipsetKnown for one	Intel® 5000X	Unknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	7	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	0	1
PS/2 ports quantityKnown for one	2	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	1	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Parallel ports quantity	1	1
I/O portsKnown for one	Front: Headphone, microphone, and 2 USB 2.0, 1 IEEE 1394; Rear: 5 USB 2.0, 1 standard serial port, 1 parallel port, PS/2 keyboard and mouse, 1 RJ-45, 1 audio in, 1 audio out, 1 IEEE 1394; Internal: 1 USB 2.0	Unknown — not stated by the source
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
Expansion slotsidentical
Expansion slotsKnown for one	7 slots: 1 PCI Express (x16) Graphics slot, 1 PCI Express (x16 mechanically, x4 electrically), 1 PCI Express (x8 mechanically, x4 electrically), 1 133 MHz PCI-X slot, 2 100 MHz PCI-X slots, and 1 legacy PCI slot	Unknown — not stated by the source
Power1 differ
Power requirementsKnown for one	800 watts	Unknown — not stated by the source
Power supplyDiffers	800 W	225 W
Designidentical
Chassis typeKnown for one	Minitower	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Displayidentical
Display included	No	No
Processor special featuresidentical
Embedded options availableKnown for one	No	Unknown — not stated by the source
Enhanced Intel SpeedStep TechnologyKnown for one	Yes	Unknown — not stated by the source
Execute Disable BitKnown for one	Yes	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel 64Known for one	Yes	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	Yes	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	No	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	No	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	No	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	No	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	No	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	No	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Physical Address Extension (PAE)Known for one	32 bit	Unknown — not stated by the source
Processor ARK IDKnown for one	28035	Unknown — not stated by the source
Processor package sizeKnown for one	37.5 x 37.5 mm	Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	No	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Conflict-Free processorKnown for one	No	Unknown — not stated by the source
Audio1 differ
Audio systemDiffers	High Definition Audio	ADI 1983 HD
Audio includedKnown for one	Integrated High Definition audio with Jack Retasking technology, optional PCI Sound Blaster X-Fi Xtreme Music	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 35 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 60 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 85%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Relative humidityKnown for one	10 - 85%	Unknown — not stated by the source
Non-operating altitudeKnown for one	10000	Unknown — not stated by the source
Non-operating relative humidity (non-condensing)Known for one	5 - 90%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	210 mm	270 mm
DepthDiffers	525 mm	87.5 mm
HeightDiffers	454 mm	275 mm
WeightDiffers	28 kg	6.4 kg
Keyboardidentical
Pointing deviceKnown for one	HP optical mouse	Unknown — not stated by the source
Keyboard typeKnown for one	HP PS/2 Standard Keyboard	Unknown — not stated by the source
Featuresidentical
Security management descriptionKnown for one	Standard, side cover key lock, USB ports can be deactivated, padlock loop, Kensington lock provision, universal chassis clamp lock, chassis intrusion sensor	Unknown — not stated by the source
Other featuresidentical
Drive baysKnown for one	3 external 5.25" bays 5 internal 3.5" bays	Unknown — not stated by the source
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional
Networkidentical
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Softwareidentical
Operating system installedKnown for one	Unknown — not stated by the source	Windows Vista Business
Bundled softwareKnown for one	Unknown — not stated by the source	Adobe Acrobat Reader Diskeeper 9.0 Home Edition Picasa (Google) Microsoft Office Hybrid Pro Image 2007
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes

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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