Product comparison · 2 pcs/workstations

HP dc7900 SFF vs HP dc7900 Ultra-slim Desktop PC

104specifications compared
13differ
91identical
4known for one product only

Key differences

Maximum internal memory
- dc7900 SFF:16 GB
- dc7900 Ultra-slim Desktop PC:8 GB
Memory layout (slots x size)
- dc7900 SFF:2 x 1 GB
- dc7900 Ultra-slim Desktop PC:1 x 2 GB
Optical drive type
- dc7900 SFF:DVD-ROM
- dc7900 Ultra-slim Desktop PC:DVD Super Multi
Serial ports quantity
- dc7900 SFF:1
- dc7900 Ultra-slim Desktop PC:0
Expansion slots
- dc7900 SFF:1 x PCI
- dc7900 Ultra-slim Desktop PC:1 x PCIe (mini)
Power consumption (typical)
- dc7900 SFF:240 W
- dc7900 Ultra-slim Desktop PC:135 W
Chassis type
- dc7900 SFF:SFF
- dc7900 Ultra-slim Desktop PC:Small Desktop
Display diagonal
- dc7900 SFF:48.3 cm (19")
- dc7900 Ultra-slim Desktop PC:55.9 cm (22")

Side by side

Differences highlightedShow differences only

Comparison of dc7900 SFF, dc7900 Ultra-slim Desktop PC
108 specifications	A HP dc7900 SFF View product	B HP dc7900 Ultra-slim Desktop PC View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor model	E8400	E8400
Processor cores	2	2
Processor threads	2	2
Processor frequency	3 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 Parity	No	No
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core 2 Duo E8000 Series	Intel Core 2 Duo E8000 Series
Processor codename	Wolfdale	Wolfdale
Thermal Design Power (TDP)	65 W	65 W
Tcase	72.4 °C	72.4 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die Transistors	410 M	410 M
Processing Die size	107 mm²	107 mm²
CPU multiplier (bus/core ratio)	9	9
Stepping	E0	E0
ECC supported by processor	No	No
Memory2 differ
Internal memory	2 GB	2 GB
Maximum internal memoryDiffers	16 GB	8 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Differs	2 x 1 GB	1 x 2 GB
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Storage1 differ
Total storage capacity	160 GB	160 GB
Optical drive typeDiffers	DVD-ROM	DVD Super Multi
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
Storage drive controller	SATA 3.0Gb/s	SATA 3.0Gb/s
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card model	Intel® GMA 4500M	Intel® GMA 4500M
On-board graphics card model	Not available	Not available
Video adapter, bus	PCI Express x16	PCI Express x16
Performanceidentical
Product type	PC	PC
Networkidentical
Networking features	Gigabit	Gigabit
Ports & interfaces1 differ
USB 2.0 ports quantity	8	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantity	2	2
Serial ports quantityDiffers	1	0
Parallel ports quantity	0	0
Expansion slots1 differ
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	2	Unknown — not stated by the source
Expansion slotsDiffers	1 x PCI	1 x PCIe (mini)
Power1 differ
Power requirements	90 – 264 / 100 – 240 VAC, 50/60 Hz, 47 – 63 Hz	90 – 264 / 100 – 240 VAC, 50/60 Hz, 47 – 63 Hz
Power consumption (typical)Differs	240 W	135 W
Design1 differ
Chassis typeDiffers	SFF	Small Desktop
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Country of origin	China	China
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Display2 differ
Display included	Yes	Yes
Display diagonalDiffers	48.3 cm (19")	55.9 cm (22")
Display resolutionDiffers	1440 x 900 pixels	1680 x 1050 pixels
Contrast ratio (typical)	1000:1	1000:1
Display brightness	250 cd/m²	250 cd/m²
Viewing angle, horizontal	160°	160°
Viewing angle, vertical	160°	160°
Processor special featuresidentical
Embedded options available	Yes	Yes
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	45 nm	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 ID	33910	33910
Processor code	SLB9J	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
Audioidentical
Audio system	HD	HD
Operational conditionsidentical
Operating temperature (T-T)	10 - 35 °C	10 - 35 °C
Storage temperature (T-T)	-30 - 60 °C	-30 - 60 °C
Operating relative humidity (H-H)	10 - 90%	10 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Weight & dimensions4 differ
WidthDiffers	337 mm	251 mm
DepthDiffers	378 mm	254 mm
HeightDiffers	100 mm	66 mm
WeightDiffers	8.5 kg	3.1 kg
Optical driveidentical
LightScribeKnown 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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