Product comparison · 2 pcs/workstations

Fujitsu SCALEO Pi 2664 vs HP Compaq dc7900 Intel® Core™2 Duo E8400

91specifications compared
41differ
50identical
48known for one product only

Key differences

The Fujitsu SCALEO Pi 2664 has 2 more processor cores than the HP Compaq dc7900 Intel® Core™2 Duo E8400 (4 vs 2). The Fujitsu SCALEO Pi 2664 has 2 more processor threads than the HP Compaq dc7900 Intel® Core™2 Duo E8400 (4 vs 2). The HP Compaq dc7900 Intel® Core™2 Duo E8400 has 0.5 GHz more processor frequency than the Fujitsu SCALEO Pi 2664 (3 GHz vs 2.5 GHz). Only the Fujitsu SCALEO Pi 2664 has FSB Parity. Only the Fujitsu SCALEO Pi 2664 has DVI port.

Processor family
- SCALEO Pi 2664:Intel® Core™2 Quad
- Compaq dc7900 Intel® Core™2 Duo E8400:Intel® Core™2 Duo
Processor model
- SCALEO Pi 2664:Q9300
- Compaq dc7900 Intel® Core™2 Duo E8400:E8400
Processor cores
- SCALEO Pi 2664:4
- Compaq dc7900 Intel® Core™2 Duo E8400:2
Processor threads
- SCALEO Pi 2664:4
- Compaq dc7900 Intel® Core™2 Duo E8400:2
Processor frequency
- SCALEO Pi 2664:2.5 GHz
- Compaq dc7900 Intel® Core™2 Duo E8400:3 GHz
FSB Parity
- SCALEO Pi 2664:Yes
- Compaq dc7900 Intel® Core™2 Duo E8400:No
Processor codename
- SCALEO Pi 2664:Yorkfield
- Compaq dc7900 Intel® Core™2 Duo E8400:Wolfdale
Thermal Design Power (TDP)
- SCALEO Pi 2664:95 W
- Compaq dc7900 Intel® Core™2 Duo E8400:65 W

Side by side

Differences highlightedShow differences only

Comparison of SCALEO Pi 2664, dc7900
139 specifications	A Fujitsu SCALEO Pi 2664 View product	B HP Compaq dc7900 Intel® Core™2 Duo E8400 Model dc7900 View product
Processor14 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™2 Quad	Intel® Core™2 Duo
Processor modelDiffers	Q9300	E8400
Processor coresDiffers	4	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	2.5 GHz	3 GHz
Processor cache	6 MB	6 MB
Processor cache type	L2	L2
Processor front side bus	1333 MHz	1333 MHz
Bus type	FSB	FSB
FSB ParityDiffers	Yes	No
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core 2 Quad Q9000 Series for Desktop	Intel Core 2 Duo E8000 Series
Processor codenameDiffers	Yorkfield	Wolfdale
Thermal Design Power (TDP)Differs	95 W	65 W
TcaseDiffers	71.4 °C	72.4 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	456 M	410 M
Processing Die sizeDiffers	164 mm²	107 mm²
CPU multiplier (bus/core ratio)Differs	7.5	9
SteppingDiffers	M1	E0
ECC supported by processor	No	No
Number of processors installedKnown for one	1	Unknown — not stated by the source
Memory4 differ
Internal memoryDiffers	4 GB	2 GB
Maximum internal memoryDiffers	4 GB	16 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Differs	2 x 2 GB	2 x 1 GB
Memory slotsKnown for one	Unknown — not stated by the source	4x DIMM
Memory clock speedDiffers	667 MHz	800 MHz
Storage2 differ
Total storage capacityDiffers	1 TB	160 GB
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-ROM
Storage mediaKnown for one	Unknown — not stated by the source	HDD
Number of HDDs supportedKnown for one	Unknown — not stated by the source	1
Total HDDs capacityKnown for one	Unknown — not stated by the source	160 GB
Number of HDDs installedDiffers	2	1
HDD capacityKnown for one	Unknown — not stated by the source	160 GB
HDD interface	SATA II	SATA II
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
HDD sizeKnown for one	Unknown — not stated by the source	3.5"
Card reader integrated	Yes	Yes
HDD capacity (group 1)Known for one	500 GB	Unknown — not stated by the source
Graphics1 differ
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelDiffers	NVIDIA GeForce 8600 GS	Not available
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® GMA
On-board graphics card modelKnown for one	Unknown — not stated by the source	Not available
Discrete graphics card memoryKnown for one	0.512 GB	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® Q45
Optical driveidentical
Optical drives quantityKnown for one	Unknown — not stated by the source	1
Network1 differ
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Ethernet LAN data ratesDiffers	1000 Mbit/s	10,100,1000 Mbit/s
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Wi-FiKnown for one	Unknown — not stated by the source	No
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	5	8
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputsDiffers	2	1
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-inKnown for one	Unknown — not stated by the source	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	2	1
DVI portDiffers	Yes	No
PS/2 ports quantity	2	2
Serial ports quantity	1	1
Firewire (IEEE 1394) portsKnown for one	2	Unknown — not stated by the source
TV-outKnown for one	Yes	Unknown — not stated by the source
TV-out typeKnown for one	S-Video	Unknown — not stated by the source
Parallel ports quantityKnown for one	1	Unknown — not stated by the source
Expansion slots2 differ
Number of 3.5" baysKnown for one	Unknown — not stated by the source	2
PCI Express x1 slots	1	1
PCI Express x16 slotsDiffers	1	2
PCI slotsDiffers	2	1
Power2 differ
Power supplyDiffers	400 W	240 W
Power supply input voltageDiffers	220 - 240 V	100 - 240 V
Power supply input frequency	50 - 60 Hz	50 - 60 Hz
Power supply typeKnown for one	ATX	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Tower	SFF
Placement supportedKnown for one	Unknown — not stated by the source	Horizontal
Number of 5.25" baysKnown for one	Unknown — not stated by the source	1
Product colourKnown for one	Unknown — not stated by the source	Black
Cooling typeKnown for one	Unknown — not stated by the source	Active
Country of originKnown for one	Unknown — not stated by the source	China
Software1 differ
Operating system installedDiffers	Windows Vista Home Premium	Windows Vista Business
Operating system architectureKnown for one	Unknown — not stated by the source	32-bit
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Trial softwareKnown for one	Microsoft Office Home and Student	Unknown — not stated by the source
Bundled softwareKnown for one	- Microsoft Works - Adobe Acrobat Reader - Nero Essentials S - CyberLink PowerDVD BD/HD - Norman/Symantec security	Unknown — not stated by the source
Displayidentical
Display included	No	No
Processor special features3 differ
Embedded options availableDiffers	No	Yes
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	45 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
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	Yes	Yes
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	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	33922	33910
Processor codeDiffers	SLAWE	SLB9J
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
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
Audio1 differ
Audio systemDiffers	HD Audio 7.1ch.	ADI1884
Operational conditions1 differ
Operating temperature (T-T)Differs	15 - 35 °C	10 - 35 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-30 - 60 °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	200 mm	337 mm
DepthDiffers	435 mm	378 mm
HeightDiffers	373 mm	100 mm
WeightDiffers	12.5 kg	8.5 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Keyboard includedKnown for one	Unknown — not stated by the source	Yes
Sustainabilityidentical
Sustainability certificatesKnown for one	Unknown — not stated by the source	EPEAT Gold, ENERGY STAR
Certificatesidentical
CertificationKnown for one	IEC60950-1, EN60950-1, LVD 2006/95/EC, EN55022/B, EN55024, EN61000-3-2/3, EMC 2004/108/EC, FSC-03230, RoHS	Unknown — not stated by the source

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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