Product comparison · 2 pcs/workstations

HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR) vs HP Compaq dc7900 Small Form Factor PC (ENERGY STAR)

129specifications compared
26differ
103identical
2known for one product only

Key differences

The HP Compaq dc7900 Small Form Factor PC (ENERGY STAR) has 1 more PCI Express x16 slots than the HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR) (2 vs 1). The HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR) has 125 W 85% Efficient - Active PFC more power supply type than the HP Compaq dc7900 Small Form Factor PC (ENERGY STAR) (365W 85% Efficient - Active PFC vs 240W 85% Efficient - Active PFC). The HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR) has 125 W more power consumption (typical) than the HP Compaq dc7900 Small Form Factor PC (ENERGY STAR) (365 W vs 240 W). Storage drive controller: SATA 3.0GB/s with NCQ and Smart IV on the HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR), SATA 3.0GB/s on the HP Compaq dc7900 Small Form Factor PC (ENERGY STAR). Discrete graphics card model: AMD Radeon HD 3650 on the HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR), Intel® GMA 4500M on the HP Compaq dc7900 Small Form Factor PC (ENERGY STAR).

Discrete graphics card model
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):AMD Radeon HD 3650
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):Intel® GMA 4500M
PCI Express x16 slots
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):1
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):2
Power consumption (typical)
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):365 W
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):240 W
External drive bays
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):3 x 5.25", 1 x 3.5"
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):1 x 5.25", 1 x 3.5"
Operating temperature (T-T)
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):50 - 95 °F
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):10 - 35 °C
Width
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):177 mm
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):337 mm
Depth
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):452 mm
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):378 mm
Height
- Compaq dc7900 Convertible Minitower PC (ENERGY STAR):447 mm
- Compaq dc7900 Small Form Factor PC (ENERGY STAR):100 mm

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7900 Convertible Minitower PC (ENERGY STAR), Compaq dc7900 Small Form Factor PC (ENERGY STAR)
131 specifications	A HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR)View product	B HP Compaq dc7900 Small Form Factor PC (ENERGY STAR)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 memoryKnown for one	Unknown — not stated by the source	16 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory clock speed	800 MHz	800 MHz
Minimum RAM	512 MB	512 MB
Storage2 differ
Total storage capacity	250 GB	250 GB
Optical drive type	DVD Super Multi	DVD Super Multi
HDD capacity	250 GB	250 GB
HDD speed	7200 RPM	7200 RPM
Card reader integrated	Yes	Yes
Maximum HDD capacity	500 GB	500 GB
Minimum storage drive space	80 GB	80 GB
Storage drive controllerDiffers	SATA 3.0GB/s with NCQ and Smart IV	SATA 3.0GB/s
Diskette drive	Optional	Optional
Storage drive typeDiffers	250 GB	250 GB 7200 rpm SATA 3.0 Gb/s NCQ, Smart IV
HDD controller type	SATA (7200 rpm)	SATA (7200 rpm)
Graphics2 differ
Discrete graphics card modelDiffers	AMD Radeon HD 3650	Intel® GMA 4500M
Video card featuresDiffers	3D/2D Controller: support is fully compliant with Microsoft standard API such as Microsoft DirectX9, DirectXVA, VMR9, GDI/GDI+; OpenGL 1.4.; Integrated VGA Controller; Integrated 400 MHz RAMDAC; Overlay Planes: Single overlay support with 5x3 filtering; Maximum Color Depth: 32 bits/pixel; Multi-disp	Integrated Intel Graphics Media Accelerator 4500
Video adapter, bus	PCI Express x16	PCI Express x16
Performanceidentical
Product type	PC	PC
Optical driveidentical
LightScribe	Yes	Yes
Network1 differ
Networking featuresDiffers	Integrated Intel 82567LM Gigabit Network Connection	Gigabit Network
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 quantity	1	1
Parallel ports quantity	0	0
I/O portsDiffers	Rear: 6 USB 2.0, 1 serial port, 2 PS/2, 1 RJ-45, 1 VGA, 1 DisplayPort, audio in/out; Front: 2 USB 2.0, audio ports; Optional: 2nd serial port, 1 parallel port	2 USB 2.0; 1 headphone/line-out; 1 microphone in
Rear ports note	6 USB 2.0; 1 serial; 2 PS/2; 1 RJ-45; 1 external VGA monitor; 1 DisplayPort; 1 audio in; 1 audio out; 1 parallel (optional); 1 serial (optional 2nd); 1 eSATA (optional)	6 USB 2.0; 1 serial; 2 PS/2; 1 RJ-45; 1 external VGA monitor; 1 DisplayPort; 1 audio in; 1 audio out; 1 parallel (optional); 1 serial (optional 2nd); 1 eSATA (optional)
Expansion slots2 differ
PCI Express x1 slots	1	1
PCI Express x16 slotsDiffers	1	2
Expansion slotsDiffers	3 full-height PCI, 1 full-height PCI Express x16, 2 full-height PCI Express x1	1 x PCI
Power3 differ
Power supply typeDiffers	365W 85% Efficient - Active PFC	240W 85% Efficient - Active PFC
Power requirementsDiffers	Input voltage 90 – 264 / 100 – 240 VAC, 50/60 Hz, 47 – 63 Hz, active PFC (85% High Efficiency) Operating Voltage Range: 90 – 264 VAC; Rated Voltage Range: 100 – 240 VAC; Rated Line Frequency: 50/60 Hz; Operating Line Frequency Range: 47 – 63 Hz; Rated Input Current: 6.0 A; Rated Input Current 80 Plu	240W power supply – active PFC; 240W 85% efficient power supply – active PFC
Power consumption (typical)Differs	365 W	240 W
Design1 differ
Chassis typeKnown for one	Unknown — not stated by the source	SFF
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
External drive baysDiffers	3 x 5.25", 1 x 3.5"	1 x 5.25", 1 x 3.5"
Country of origin	China	China
Upgrade type	Windows Vista capable	Windows Vista capable
Softwareidentical
Operating system installed	Windows Vista Business	Windows Vista Business
Applications supported	Windows Vista Premium ready	Windows Vista Premium ready
Compatible operating systems	Genuine Windows XP Professional; Genuine Windows XP Home	Genuine Windows XP Professional; Genuine Windows XP Home
Bundled software	On some models only (not included with FreeDOS): HP ProtectTools Security Software Suite Version 4.0, HP Power Manager, HP Firefox Virtual Browser, HP Backup and Recovery Manager, HP Insight Diagnostics Software (available via HP Backup and Recovery Manager), Computer Setup Utility, McAfee AntiVirus	On some models only (not included with FreeDOS): HP ProtectTools Security Software Suite Version 4.0, HP Power Manager, HP Firefox Virtual Browser, HP Backup and Recovery Manager, HP Insight Diagnostics Software (available via HP Backup and Recovery Manager), Computer Setup Utility, McAfee AntiVirus
Driver LAN	Microsoft Windows Vista, Microsoft Windows XP	Microsoft Windows Vista, Microsoft Windows XP
Displayidentical
Display included	No	No
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
Audio1 differ
Audio systemDiffers	Integrated HD audio with ADI1884 codec, internal PC speaker	HD
Audio included	Integrated HD audio with ADI1884 codec, internal PC speaker	Integrated HD audio with ADI1884 codec, internal PC speaker
Operational conditions1 differ
Operating temperature (T-T)Differs	50 - 95 °F	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%
Relative humidity	10 - 90%	10 - 90%
Non-operating altitude	9144	9144
Non-operating relative humidity (non-condensing)	5 - 90%	5 - 90%
Weight & dimensions6 differ
WidthDiffers	177 mm	337 mm
DepthDiffers	452 mm	378 mm
HeightDiffers	447 mm	100 mm
WeightDiffers	11.8 kg	8.5 kg
Size (imperial)Differs	17.8 cm (7")	33.8 cm (13.3")
Weight (imperial)Differs	26.2 lb	18.75 lb
Certificatesidentical
Certification	ENERGY STAR qualified; EPEAT Gold; 85% efficient power supply	ENERGY STAR qualified; EPEAT Gold; 85% efficient power supply
Keyboard2 differ
Pointing deviceDiffers	HP PS/2 2-Button Optical Scroll Mouse	PS/2 2-button optical scroll mouse
Keyboard typeDiffers	HP PS/2 Standard Keyboard	PS/2 standard keyboard
Multimediaidentical
Multimedia	Integrated High Definition audio with ADI1884 codec (all ports are stereo)	Integrated High Definition audio with ADI1884 codec (all ports are stereo)
Features2 differ
Manageability featuresDiffers	Long, stable lifecycle. Expandable, convertible chassis.	Energy efficient, space saving design. Long, stable lifecycle.
Security management descriptionDiffers	Integrated 1.2 TPM Embedded Security Chip (except for Russia), HP Business PC Security Lock, HP USB Smartcard Keyboard	HP ProtectTools Security Software Suite; Embedded TPM 1.2 compliant security module (TPM module disabled where use is restricted by law); TPM Pre-Boot Authentication (via BIOS); Smartcard Pre-boot Authentication (via BIOS); Stringent Security (via BIOS - must be enabled); SATA port disablement (via
Other features2 differ
Security featuresDiffers	Kensington Lock, Solenoid Hood Lock / Sensor	Kensington Lock, Solenoid Hood Lock / Sensor, HP 2008 (SFF) Wall Mount/Security Sleeve
Drive baysDiffers	3 external 5.25 inch, 1 external 3.5 inch 2 internal 3.5 inch	1 - 3.5-in; 1 – 5.25-in 1 – 3.5-in

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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