Product comparison · 2 cpus

Acer Intel Pentium G840 vs Acer Intel Xeon E3-1270

39specifications compared
14differ
25identical
19known for one product only

Key differences

The Acer Intel Xeon E3-1270 has 0.6 GHz more processor base frequency than the Acer Intel Pentium G840 (3.4 GHz vs 2.8 GHz). The Acer Intel Xeon E3-1270 has 2 more processor cores than the Acer Intel Pentium G840 (4 vs 2). The Acer Intel Xeon E3-1270 has 6 more processor threads than the Acer Intel Pentium G840 (8 vs 2). Only the Acer Intel Xeon E3-1270 has ECC. Only the Acer Intel Pentium G840 has on-board graphics card.

Processor family
- Intel Pentium G840:Intel Pentium G
- Intel Xeon E3-1270:Intel® Xeon® E3 Family
Processor model
- Intel Pentium G840:G840
- Intel Xeon E3-1270:E3-1270
Processor base frequency
- Intel Pentium G840:2.8 GHz
- Intel Xeon E3-1270:3.4 GHz
Processor cores
- Intel Pentium G840:2
- Intel Xeon E3-1270:4
Component for
- Intel Pentium G840:PC
- Intel Xeon E3-1270:Server/workstation
Processor threads
- Intel Pentium G840:2
- Intel Xeon E3-1270:8
Processor cache
- Intel Pentium G840:3 MB
- Intel Xeon E3-1270:8 MB
L3 cache speed
- Intel Pentium G840:2.8 GHz
- Intel Xeon E3-1270:3.4 GHz

Side by side

Differences highlightedShow differences only

Comparison of Intel Pentium G840, Intel Xeon E3-1270
58 specifications	A Acer Intel Pentium G840 View product	B Acer Intel Xeon E3-1270 View product
Processor10 differ
Processor familyDiffers	Intel Pentium G	Intel® Xeon® E3 Family
Processor modelDiffers	G840	E3-1270
Processor base frequencyDiffers	2.8 GHz	3.4 GHz
Processor coresDiffers	2	4
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
Processor lithography	32 nm	32 nm
Package type	Tray	Tray
Component forDiffers	PC	Server/workstation
Processor threadsDiffers	2	8
System bus rate	5 GT/s	5 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.8 GHz
Processor cacheDiffers	3 MB	8 MB
Processor cache type	L3	L3
L3 cache speedDiffers	2.8 GHz	3.4 GHz
Thermal Design Power (TDP)Differs	65 W	80 W
SteppingDiffers	Q0	D2
Bus type	DMI	DMI
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	34
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
Compatible chipsetsKnown for one	Intel® B65 Express, Intel® B75 Express, Intel® H61 Express, Intel® H67 Express, Intel® H77 Express, Intel® P67 Express, Intel® Q65 Express, Intel® Q67 Express, Intel Q75 Express, Intel® Q77 Express, Intel® Z68 Express, Intel® Z75 Express, Intel® Z77 Express	Unknown — not stated by the source
Processor codeKnown for one	SR05P	Unknown — not stated by the source
Memory1 differ
Maximum internal memory supported by processor	32 GB	32 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
ECCDiffers	No	Yes
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	850 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	1100 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
Idle States	Yes	Yes
Thermal Monitoring Technologies	Yes	Yes
Market segmentDiffers	Desktop	Server
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	2
PCI Express slots version	2.0	2.0
CPU configuration (max)	1	1
Supported instruction setsKnown for one	SSE4.1, SSE4.2	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	32 nm	Unknown — not stated by the source
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
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	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	2.0
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	Yes
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 EligibilityKnown for one	Unknown — not stated by the source	Yes
Intel FDI TechnologyKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Tcase	69.1 °C	69.1 °C
Weight & dimensionsidentical
Processor package size	37.5 mm	37.5 mm
Other features1 differ
Intel® Virtualization Technology (Intel® VT)Differs	VT-x	VT-d, VT-x

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.

More cpu comparisons

All cpu comparisons