Product comparison · 2 cpus

Acer Intel Celeron B815 vs Dell i7-740QM processor

26specifications compared
18differ
8identical
38known for one product only

Key differences

Processor family
- Intel Celeron B815:Intel® Celeron®
- i7-740QM processor:Intel® Core™ i7
Processor model
- Intel Celeron B815:B815
- i7-740QM processor:i7-740QM
Processor base frequency
- Intel Celeron B815:1.6 GHz
- i7-740QM processor:1.73 GHz
Processor cores
- Intel Celeron B815:2
- i7-740QM processor:4
Processor socket
- Intel Celeron B815:Socket 988
- i7-740QM processor:PGA988
Processor lithography
- Intel Celeron B815:32 nm
- i7-740QM processor:45 nm
Processor threads
- Intel Celeron B815:2
- i7-740QM processor:8
System bus rate
- Intel Celeron B815:5 GT/s
- i7-740QM processor:2.5 GT/s

Side by side

Differences highlightedShow differences only

Comparison of Intel Celeron B815, i7-740QM
64 specifications	A Acer Intel Celeron B815 View product	B Dell i7-740QM processor Model i7-740QM View product
Processor13 differ
Processor familyDiffers	Intel® Celeron®	Intel® Core™ i7
Processor modelDiffers	B815	i7-740QM
Processor base frequencyDiffers	1.6 GHz	1.73 GHz
Processor coresDiffers	2	4
Processor socketDiffers	Socket 988	PGA988
Processor lithographyDiffers	32 nm	45 nm
Package typeKnown for one	Tray	Unknown — not stated by the source
Component forKnown for one	Netbook/nettop	Unknown — not stated by the source
Processor threadsDiffers	2	8
System bus rateDiffers	5 GT/s	2.5 GT/s
Processor operating modes	64-bit	64-bit
Processor cacheDiffers	2 MB	6 MB
Processor cache typeDiffers	L3	Smart Cache
L3 cache speedKnown for one	1.6 GHz	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	35 W	45 W
SteppingKnown for one	Q0	Unknown — not stated by the source
Bus type	DMI	DMI
CPU multiplier (bus/core ratio)Differs	16	13
Memory bandwidth supported by processor (max)Differs	21.3 GB/s	21 GB/s
Processor generationKnown for one	Unknown — not stated by the source	Intel® Core™ i7
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.93 GHz
Memoryidentical
Maximum internal memory supported by processorKnown for one	16 GB	Unknown — not stated by the source
Memory types supported by processorKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory clock speeds supported by processorKnown for one	1066,1333 MHz	Unknown — not stated by the source
Memory channels	Dual-channel	Dual-channel
ECCKnown for one	No	Unknown — not stated by the source
Graphics1 differ
On-board graphics cardDiffers	Yes	No
On-board graphics card modelKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	650 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	1050 MHz	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	2	Unknown — not stated by the source
Features3 differ
Execute Disable Bit	Yes	Yes
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Thermal Monitoring Technologies	Yes	Yes
Maximum number of PCI Express lanesDiffers	1	16
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
PCI Express configurationsDiffers	1x16, 2x8, 1x8+2x4	1x16, 2x8
Supported instruction setsDiffers	SSE4.1, SSE4.2	SSE4.2
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	32 nm	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	774 M
Processing Die sizeKnown for one	Unknown — not stated by the source	296 mm²
Embedded options availableKnown for one	Unknown — not stated by the source	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	36 bit
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Dual Display Capable TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	Yes	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	Yes	Unknown — not stated by the source
Intel Enhanced Halt State	Yes	Yes
Intel Virtualization Technology (VT-x)Known for one	Yes	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	1.0
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Intel 64Known for one	Unknown — not stated by the source	Yes
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	Yes
Intel® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Tjunction	100 °C	100 °C
Weight & dimensions1 differ
Processor package sizeDiffers	37.5 mm	37.5 x 37.5 mm
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)Known for one	VT-x	Unknown — not stated by the source
Technical detailsidentical
Processor cacheKnown for one	Unknown — not stated by the source	6144 KB

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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