Product comparison · 2 cpus

Acer Intel Xeon E5645 vs Dell i7-740QM processor

25specifications compared
17differ
8identical
33known for one product only

Key differences

The Acer Intel Xeon E5645 has 0.67 GHz more processor base frequency than the Dell i7-740QM processor (2.4 GHz vs 1.73 GHz). The Acer Intel Xeon E5645 has 2 more processor cores than the Dell i7-740QM processor (6 vs 4). The Dell i7-740QM processor has 13 nm more processor lithography than the Acer Intel Xeon E5645 (45 nm vs 32 nm). Only the Acer Intel Xeon E5645 has Intel® AES New Instructions (Intel® AES-NI). Processor family: Intel® Xeon® 5000 Sequence on the Acer Intel Xeon E5645, Intel® Core™ i7 on the Dell i7-740QM processor.

Processor family
- Intel Xeon E5645:Intel® Xeon® 5000 Sequence
- i7-740QM processor:Intel® Core™ i7
Processor model
- Intel Xeon E5645:E5645
- i7-740QM processor:i7-740QM
Processor base frequency
- Intel Xeon E5645:2.4 GHz
- i7-740QM processor:1.73 GHz
Processor cores
- Intel Xeon E5645:6
- i7-740QM processor:4
Processor socket
- Intel Xeon E5645:Socket B (LGA 1366)
- i7-740QM processor:PGA988
Processor lithography
- Intel Xeon E5645:32 nm
- i7-740QM processor:45 nm
Processor threads
- Intel Xeon E5645:12
- i7-740QM processor:8
System bus rate
- Intel Xeon E5645:5.86 GT/s
- i7-740QM processor:2.5 GT/s

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5645, i7-740QM
58 specifications	A Acer Intel Xeon E5645 View product	B Dell i7-740QM processor Model i7-740QM View product
Processor14 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Core™ i7
Processor generationKnown for one	Unknown — not stated by the source	Intel® Core™ i7
Processor modelDiffers	E5645	i7-740QM
Processor base frequencyDiffers	2.4 GHz	1.73 GHz
Processor coresDiffers	6	4
Processor socketDiffers	Socket B (LGA 1366)	PGA988
Processor lithographyDiffers	32 nm	45 nm
Processor threadsDiffers	12	8
System bus rateDiffers	5.86 GT/s	2.5 GT/s
Processor boost frequencyDiffers	2.67 GHz	2.93 GHz
Processor cacheDiffers	12 MB	6 MB
Processor cache typeDiffers	L3	Smart Cache
Thermal Design Power (TDP)Differs	80 W	45 W
Bus typeKnown for one	Unknown — not stated by the source	DMI
CPU multiplier (bus/core ratio)Differs	18	13
Memory bandwidth supported by processor (max)Differs	32 GB/s	21 GB/s
Package typeKnown for one	Tray	Unknown — not stated by the source
Component forKnown for one	Server/workstation	Unknown — not stated by the source
L3 cache speedKnown for one	2.4 GHz	Unknown — not stated by the source
Processor front side busKnown for one	1333 MHz	Unknown — not stated by the source
VID Voltage RangeKnown for one	0.75 - 1.35 V	Unknown — not stated by the source
SteppingKnown for one	B1	Unknown — not stated by the source
Memory1 differ
Memory channelsDiffers	Triple-channel	Dual-channel
Maximum internal memory supported by processorKnown for one	288 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	800,1066,1333 MHz	Unknown — not stated by the source
ECCKnown for one	Yes	Unknown — not stated by the source
Featuresidentical
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	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	Server	Unknown — not stated by the source
Processor special features2 differ
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
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® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	Yes
Intel Demand Based SwitchingKnown for one	Yes	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	76.2 °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-d, 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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