Product comparison · 2 pcs/workstations

Acer eMachine ET1831 vs HP dc7900 SFF + LA1905wg

84specifications compared
24differ
60identical
24known for one product only

Key differences

The HP dc7900 SFF + LA1905wg has 0.6 GHz more processor frequency than the Acer eMachine ET1831 (3 GHz vs 2.4 GHz). The HP dc7900 SFF + LA1905wg has 5 MB more processor cache than the Acer eMachine ET1831 (6 MB vs 1 MB). The HP dc7900 SFF + LA1905wg has 533 MHz more processor front side bus than the Acer eMachine ET1831 (1333 MHz vs 800 MHz). Only the Acer eMachine ET1831 has card reader integrated. Only the HP dc7900 SFF + LA1905wg has display included.

Processor family
- eMachine ET1831:Intel® Celeron®
- dc7900 SFF + LA1905wg:Intel® Core™2 Duo
Processor model
- eMachine ET1831:E3200
- dc7900 SFF + LA1905wg:E8400
Processor frequency
- eMachine ET1831:2.4 GHz
- dc7900 SFF + LA1905wg:3 GHz
Processor cache
- eMachine ET1831:1 MB
- dc7900 SFF + LA1905wg:6 MB
Processor front side bus
- eMachine ET1831:800 MHz
- dc7900 SFF + LA1905wg:1333 MHz
Processor operating modes
- eMachine ET1831:32-bit
- dc7900 SFF + LA1905wg:64-bit
Tcase
- eMachine ET1831:74.1 °C
- dc7900 SFF + LA1905wg:72.4 °C
CPU multiplier (bus/core ratio)
- eMachine ET1831:12
- dc7900 SFF + LA1905wg:9

Side by side

Differences highlightedShow differences only

Comparison of eMachine ET1831, dc7900 SFF + LA1905wg
108 specifications	A Acer eMachine ET1831 View product	B HP dc7900 SFF + LA1905wg View product
Processor10 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Celeron®	Intel® Core™2 Duo
Processor modelDiffers	E3200	E8400
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.4 GHz	3 GHz
Processor cacheDiffers	1 MB	6 MB
Processor cache type	L2	L2
Processor front side busDiffers	800 MHz	1333 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithography	45 nm	45 nm
Processor operating modesDiffers	32-bit	64-bit
Processor seriesDiffers	Intel Celeron Processor E3000 Series for Desktop	Intel Core 2 Duo E8000 Series
Processor codename	Wolfdale	Wolfdale
Thermal Design Power (TDP)	65 W	65 W
TcaseDiffers	74.1 °C	72.4 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	410 M
Processing Die sizeKnown for one	Unknown — not stated by the source	107 mm²
CPU multiplier (bus/core ratio)Differs	12	9
SteppingDiffers	R0	E0
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 layout (slots x size)Known for one	Unknown — not stated by the source	2 x 1 GB
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	320 GB	160 GB
Optical drive type	DVD±RW	DVD±RW
Storage mediaKnown for one	Unknown — not stated by the source	HDD
Total HDDs capacityKnown for one	Unknown — not stated by the source	160 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integratedDiffers	Yes	No
Floppy drive installed	No	No
Graphics1 differ
On-board graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® GeForce® 7050	Intel® GMA 4500M
On-board graphics card modelKnown for one	Unknown — not stated by the source	Not available
Performanceidentical
Product type	PC	PC
Optical driveidentical
LightScribeKnown for one	Unknown — not stated by the source	Yes
Network1 differ
Ethernet LAN	Yes	Yes
Wi-Fi	No	No
Networking featuresDiffers	Ethernet, Fast Ethernet	Gigabit Ethernet
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	6	8
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	No	No
PS/2 ports quantity	2	2
Firewire (IEEE 1394) ports	0	0
Serial ports quantityDiffers	0	1
Parallel ports quantity	0	0
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	240 W
Designidentical
Chassis type	SFF	SFF
Country of originKnown for one	Unknown — not stated by the source	China
Software1 differ
Operating system installedDiffers	Linux	Windows Vista Business
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	48.3 cm (19")
Display resolutionKnown for one	Unknown — not stated by the source	1440 x 900 pixels
Contrast ratio (typical)Known for one	Unknown — not stated by the source	1000:1
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	160°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	160°
Processor special features5 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 TechnologyDiffers	No	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)Differs	No	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	42770	33910
Processor codeDiffers	SLGU5	SLB9J
Processor package sizeKnown for one	Unknown — not stated by the source	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	High Definition Audio 7.1	High Definition Audio
Operational conditionsidentical
Non-operating altitudeKnown for one	Unknown — not stated by the source	9144
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	337 mm
DepthKnown for one	Unknown — not stated by the source	378 mm
HeightKnown for one	Unknown — not stated by the source	100 mm
WeightKnown for one	Unknown — not stated by the source	8.5 kg
Packaging contentidentical
Remote control included	No	No
Other featuresidentical
TV tuner integrated	No	No

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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