Product comparison · 2 pcs/workstations

HP Compaq dc7900 CMT vs HP Compaq dc7900 SFF

104specifications compared
14differ
90identical
7known for one product only

Key differences

Networking features
- Compaq dc7900 CMT:Intel 82567LM Gigabit
- Compaq dc7900 SFF:Gigabit
PCI Express x1 slots
- Compaq dc7900 CMT:2
- Compaq dc7900 SFF:1
PCI Express x16 slots
- Compaq dc7900 CMT:1
- Compaq dc7900 SFF:2
Expansion slots
- Compaq dc7900 CMT:3 x PCI
- Compaq dc7900 SFF:1 x PCI
Power consumption (typical)
- Compaq dc7900 CMT:365 W
- Compaq dc7900 SFF:240 W
Chassis type
- Compaq dc7900 CMT:Mini Tower
- Compaq dc7900 SFF:SFF
External drive bays
- Compaq dc7900 CMT:3 x 5.25", 1 x 3.5"
- Compaq dc7900 SFF:1 x 5.25", 1 x 3.5"
Display diagonal
- Compaq dc7900 CMT:55.9 cm (22")
- Compaq dc7900 SFF:48.3 cm (19")

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7900 CMT, Compaq dc7900 SFF
111 specifications	A HP Compaq dc7900 CMT View product	B HP Compaq dc7900 SFF View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor model	E8500	E8500
Processor cores	2	2
Processor threads	2	2
Processor frequency	3.16 GHz	3.16 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
Processor system type	DP	DP
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)	9.5	9.5
Processor core voltage (AC)	0.850/1.3625 V	0.850/1.3625 V
Stepping	C0	C0
ECC supported by processor	No	No
Memoryidentical
Internal memory	2 GB	2 GB
Maximum internal memory	16 GB	16 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
Memory clock speedKnown for one	Unknown — not stated by the source	800 MHz
Storageidentical
Total storage capacity	250 GB	250 GB
Optical drive type	DVD Super Multi	DVD Super Multi
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speed	7200 RPM	7200 RPM
Card reader integrated	Yes	Yes
Storage drive controller	SATA 3.0Gb/s	SATA 3.0Gb/s
Graphicsidentical
Discrete graphics card model	Intel® GMA 4500M	Intel® GMA 4500M
Video adapter, bus	PCI Express x16	PCI Express x16
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
Performanceidentical
Product type	PC	PC
Optical driveidentical
LightScribe	Yes	Yes
Network1 differ
Networking featuresDiffers	Intel 82567LM Gigabit	Gigabit
Ports & interfacesidentical
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 quantity	1	1
Parallel ports quantity	0	0
Expansion slots3 differ
PCI Express x1 slotsDiffers	2	1
PCI Express x16 slotsDiffers	1	2
Expansion slotsDiffers	3 x PCI	1 x PCI
Power1 differ
Power requirementsKnown for one	90 – 264 / 100 – 240 VAC, 50/60 Hz, 47 – 63 Hz	Unknown — not stated by the source
Power consumption (typical)Differs	365 W	240 W
Design2 differ
Chassis typeDiffers	Mini Tower	SFF
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	3 x 5.25", 1 x 3.5"	1 x 5.25", 1 x 3.5"
Country of origin	China	China
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Display3 differ
Display included	Yes	Yes
Display diagonalDiffers	55.9 cm (22")	48.3 cm (19")
Display resolutionDiffers	1680 x 1050 pixels	1280 x 1024 pixels
Contrast ratio (typical)Differs	1000:1	800:1
Display brightness	300 cd/m²	300 cd/m²
Viewing angle, horizontal	160°	160°
Viewing angle, vertical	160°	160°
Display	TFT	TFT
Processor special featuresidentical
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 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	33911	33911
Processor code	SLAPK	SLAPK
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	177 mm	337 mm
DepthDiffers	452 mm	378 mm
HeightDiffers	447 mm	100 mm
WeightDiffers	11.8 kg	8.5 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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