Product comparison · 2 cpus

Acer Intel Core i5-661 vs Acer Intel Core i7-870

36specifications compared
13differ
23identical
9known for one product only

Key differences

Processor family
- Intel Core i5-661:Intel® Core™ i5
- Intel Core i7-870:Intel® Core™ i7
Processor generation
- Intel Core i5-661:Intel® Core™ i5
- Intel Core i7-870:Intel® Core™ i7
Processor model
- Intel Core i5-661:i5-661
- Intel Core i7-870:i7-870
Processor base frequency
- Intel Core i5-661:3.33 GHz
- Intel Core i7-870:2.93 GHz
Processor cores
- Intel Core i5-661:2
- Intel Core i7-870:4
Processor lithography
- Intel Core i5-661:32 nm
- Intel Core i7-870:45 nm
Processor threads
- Intel Core i5-661:4
- Intel Core i7-870:8
Processor cache
- Intel Core i5-661:4 MB
- Intel Core i7-870:8 MB

Side by side

Differences highlightedShow differences only

Comparison of Intel Core i5-661, Intel Core i7-870
45 specifications	A Acer Intel Core i5-661 View product	B Acer Intel Core i7-870 View product
Processor9 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor generationDiffers	Intel® Core™ i5	Intel® Core™ i7
Processor modelDiffers	i5-661	i7-870
Processor base frequencyDiffers	3.33 GHz	2.93 GHz
Processor coresDiffers	2	4
Processor socket	LGA 1156 (Socket H)	LGA 1156 (Socket H)
Processor lithographyDiffers	32 nm	45 nm
Component for	PC	PC
Processor threadsDiffers	4	8
System bus rate	2.5 GT/s	2.5 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequency	3.6 GHz	3.6 GHz
Processor cacheDiffers	4 MB	8 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	87 W	95 W
VID Voltage Range	0.6500 - 1.4000 V	0.6500 - 1.4000 V
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
Memoryidentical
Maximum internal memory supported by processor	16 GB	16 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	1066,1333 MHz	1066,1333 MHz
Memory channels	Dual-channel	Dual-channel
ECCKnown for one	Unknown — not stated by the source	No
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
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Thermal Monitoring Technologies	No	No
Market segment	Desktop	Desktop
PCI Express slots version	2.0	2.0
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
Processor special features2 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 Technology	Yes	Yes
Intel Demand Based Switching	No	No
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	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
Other features1 differ
Intel® Virtualization Technology (Intel® VT)Differs	VT-x	VT-d, VT-x
Operational conditionsidentical
TcaseKnown for one	69.8 °C	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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