Product comparison · 2 cpus

Acer Intel Core i5-661 vs Dell i7-740QM processor

25specifications compared
17differ
8identical
32known for one product only

Key differences

Processor family
- Intel Core i5-661:Intel® Core™ i5
- i7-740QM processor:Intel® Core™ i7
Processor generation
- Intel Core i5-661:Intel® Core™ i5
- i7-740QM processor:Intel® Core™ i7
Processor model
- Intel Core i5-661:i5-661
- i7-740QM processor:i7-740QM
Processor base frequency
- Intel Core i5-661:3.33 GHz
- i7-740QM processor:1.73 GHz
Processor cores
- Intel Core i5-661:2
- i7-740QM processor:4
Processor socket
- Intel Core i5-661:LGA 1156 (Socket H)
- i7-740QM processor:PGA988
Processor lithography
- Intel Core i5-661:32 nm
- i7-740QM processor:45 nm
Processor threads
- Intel Core i5-661:4
- i7-740QM processor:8

Side by side

Differences highlightedShow differences only

Comparison of Intel Core i5-661, i7-740QM
57 specifications	A Acer Intel Core i5-661 View product	B Dell i7-740QM processor Model i7-740QM View product
Processor12 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor modelDiffers	i5-661	i7-740QM
Processor base frequencyDiffers	3.33 GHz	1.73 GHz
Processor coresDiffers	2	4
Processor socketDiffers	LGA 1156 (Socket H)	PGA988
Processor lithographyDiffers	32 nm	45 nm
Processor threadsDiffers	4	8
System bus rate	2.5 GT/s	2.5 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	3.6 GHz	2.93 GHz
Processor cacheDiffers	4 MB	6 MB
Processor cache typeDiffers	L3	Smart Cache
Thermal Design Power (TDP)Differs	87 W	45 W
Bus typeKnown for one	Unknown — not stated by the source	DMI
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	13
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
Component forKnown for one	PC	Unknown — not stated by the source
VID Voltage RangeKnown for one	0.6500 - 1.4000 V	Unknown — not stated by the source
Memoryidentical
Memory channels	Dual-channel	Dual-channel
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
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	900 MHz	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	2	Unknown — not stated by the source
Features1 differ
Execute Disable Bit	Yes	Yes
Thermal Monitoring TechnologiesDiffers	No	Yes
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
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
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
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
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Market segmentKnown for one	Desktop	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
Processor special features3 differ
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution TechnologyDiffers	No	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)	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	Yes	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 Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	Yes
Intel® vPro™ Platform EligibilityDiffers	No	Yes
Intel Demand Based SwitchingKnown for one	No	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
TjunctionKnown for one	Unknown — not stated by the source	100 °C
TcaseKnown for one	69.8 °C	Unknown — not stated by the source
Technical detailsidentical
Processor cacheKnown for one	Unknown — not stated by the source	6144 KB
Weight & dimensionsidentical
Processor package sizeKnown for one	Unknown — not stated by the source	37.5 x 37.5 mm
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)Known for one	VT-x	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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