Product comparison · 2 pcs/workstations

Dell OptiPlex 780 MT vs HP Compaq 8100 Elite CMT

96specifications compared
38differ
58identical
44known for one product only

Key differences

The HP Compaq 8100 Elite CMT has 2 more processor threads than the Dell OptiPlex 780 MT (4 vs 2). The HP Compaq 8100 Elite CMT has 0.04 GHz more processor frequency than the Dell OptiPlex 780 MT (3.2 GHz vs 3.16 GHz). The Dell OptiPlex 780 MT has 2 MB more processor cache than the HP Compaq 8100 Elite CMT (6 MB vs 4 MB). Only the HP Compaq 8100 Elite CMT has Intel Dual Display Capable Technology. Only the HP Compaq 8100 Elite CMT has Intel FDI Technology.

Processor family
- OptiPlex 780 MT:Intel® Core™2 Duo
- Compaq 8100 Elite CMT:Intel® Core™ i3
Processor model
- OptiPlex 780 MT:E8500
- Compaq 8100 Elite CMT:i3-550
Processor threads
- OptiPlex 780 MT:2
- Compaq 8100 Elite CMT:4
Processor frequency
- OptiPlex 780 MT:3.16 GHz
- Compaq 8100 Elite CMT:3.2 GHz
Processor cache
- OptiPlex 780 MT:6 MB
- Compaq 8100 Elite CMT:4 MB
Processor cache type
- OptiPlex 780 MT:L2
- Compaq 8100 Elite CMT:Smart Cache
Bus type
- OptiPlex 780 MT:FSB
- Compaq 8100 Elite CMT:DMI
Processor lithography
- OptiPlex 780 MT:45 nm
- Compaq 8100 Elite CMT:32 nm

Side by side

Differences highlightedShow differences only

Comparison of OptiPlex 780 MT, Compaq 8100 Elite CMT
140 specifications	A Dell OptiPlex 780 MT View product	B HP Compaq 8100 Elite CMT View product
Processor17 differ
Processor familyDiffers	Intel® Core™2 Duo	Intel® Core™ i3
Processor modelDiffers	E8500	i3-550
Processor threadsDiffers	2	4
Processor frequencyDiffers	3.16 GHz	3.2 GHz
Processor cacheDiffers	6 MB	4 MB
Processor cache typeDiffers	L2	Smart Cache
Processor front side busKnown for one	1333 MHz	Unknown — not stated by the source
Bus typeDiffers	FSB	DMI
Processor lithographyDiffers	45 nm	32 nm
Processor seriesDiffers	Intel Core 2 Duo E8000 Series	Intel Core i3-500 Desktop Series
Processor codenameDiffers	Wolfdale	Clarkdale
Processor system typeKnown for one	DP	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	65 W	73 W
TcaseDiffers	72.4 °C	72.6 °C
Processor socketDiffers	LGA 775 (Socket T)	LGA 1156 (Socket H)
Number of Processing Die TransistorsDiffers	410 M	382 M
Processing Die sizeDiffers	107 mm²	81 mm²
CPU multiplier (bus/core ratio)Differs	9.5	24
Processor core voltage (AC)Known for one	0.850/1.3625 V	Unknown — not stated by the source
SteppingDiffers	C0	K0
Processor generationKnown for one	Unknown — not stated by the source	Intel® Core™ i3
System bus rateKnown for one	Unknown — not stated by the source	2.5 GT/s
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	16 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	1066,1333 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	21 GB/s
Memoryidentical
Memory layout (slots x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Memory slotsKnown for one	4x DIMM	Unknown — not stated by the source
Memory clock speedKnown for one	1333 MHz	Unknown — not stated by the source
Maximum internal memoryKnown for one	Unknown — not stated by the source	16 GB
Memory channelsKnown for one	Unknown — not stated by the source	Dual-channel
Storage1 differ
Optical drive typeDiffers	DVD-RW	DVD Super Multi
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
Card reader integratedKnown for one	No	Unknown — not stated by the source
Storage mediaKnown for one	Unknown — not stated by the source	HDD
Total HDDs capacityKnown for one	Unknown — not stated by the source	320 GB
Graphicsidentical
Discrete graphics card modelKnown for one	Intel® GMA X4500	Unknown — not stated by the source
Graphics card familyKnown for one	Intel	Unknown — not stated by the source
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
Number of displays supported (on-board graphics)Known for one	Unknown — not stated by the source	2
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	733 MHz
Performanceidentical
Password protection typeKnown for one	BIOS	Unknown — not stated by the source
Networkidentical
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	9	10
PS/2 ports quantityDiffers	0	2
eSATA ports quantityKnown for one	1	Unknown — not stated by the source
Parallel ports quantityDiffers	1	0
Expansion slots1 differ
PCI Express x16 slotsDiffers	1	2
PCI slotsKnown for one	2	Unknown — not stated by the source
Poweridentical
Power supplyKnown for one	305 W	Unknown — not stated by the source
Design2 differ
External drive baysDiffers	1x 3.5", 2x 5.25"	3 x 13.3cm (5.25")
Internal drive baysDiffers	2x 3.5"	3 x 8.9cm (3.5")
Country of originKnown for one	Unknown — not stated by the source	China
Processor special features10 differ
Intel Dual Display Capable TechnologyDiffers	No	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Processor ARK IDDiffers	33911	48505
Processor codeDiffers	SLAPK	SLBUD
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	45 nm
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
Weight & dimensions4 differ
WidthDiffers	190 mm	177.8 mm
DepthDiffers	410 mm	478.8 mm
HeightDiffers	430 mm	444.5 mm
WeightDiffers	11.7 kg	11.2 kg
Weight (imperial)Known for one	11.7 kg (25.8 lbs)	Unknown — not stated by the source
Packaging contentidentical
Mouse includedKnown for one	No	Unknown — not stated by the source
Keyboard includedKnown for one	No	Unknown — not stated by the source
Certificatesidentical
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
CertificationKnown for one	EPEAT Gold, CECP, TCO 05, WEEE, CES, RoHS	Unknown — not stated by the source
Other featuresidentical
HDD user passwordKnown for one	Yes	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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