Product comparison · 2 cpus

HP I7-2640M processor vs HP Intel Celeron B840

18specifications compared
6differ
12identical
13known for one product only

Key differences

The HP I7-2640M processor has 0.9 GHz more processor base frequency than the HP Intel Celeron B840 (2.8 GHz vs 1.9 GHz). The HP I7-2640M processor has 2 more processor threads than the HP Intel Celeron B840 (4 vs 2). The HP I7-2640M processor has 2 MB more processor cache than the HP Intel Celeron B840 (4 MB vs 2 MB). Processor family: Intel® Core™ i7 on the HP I7-2640M processor, Intel® Celeron® on the HP Intel Celeron B840. Processor model: i7-2640M on the HP I7-2640M processor, B840 on the HP Intel Celeron B840.

Processor family
- I7-2640M processor:Intel® Core™ i7
- Intel Celeron B840:Intel® Celeron®
Processor model
- I7-2640M processor:i7-2640M
- Intel Celeron B840:B840
Processor base frequency
- I7-2640M processor:2.8 GHz
- Intel Celeron B840:1.9 GHz
Processor threads
- I7-2640M processor:4
- Intel Celeron B840:2
Processor cache
- I7-2640M processor:4 MB
- Intel Celeron B840:2 MB
CPU multiplier (bus/core ratio)
- I7-2640M processor:28
- Intel Celeron B840:19

Side by side

Differences highlightedShow differences only

Comparison of I7-2640M, Intel Celeron B840
31 specifications	A HP I7-2640M processor Model I7-2640M View product	B HP Intel Celeron B840 View product
Processor6 differ
Processor familyDiffers	Intel® Core™ i7	Intel® Celeron®
Processor modelDiffers	i7-2640M	B840
Processor base frequencyDiffers	2.8 GHz	1.9 GHz
Processor cores	2	2
Processor socket	PGA988	PGA988
Processor lithography	32 nm	32 nm
Package type	Tray	Tray
Processor threadsDiffers	4	2
System bus rate	5 GT/s	5 GT/s
Processor operating modes	64-bit	64-bit
Processor cacheDiffers	4 MB	2 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)	35 W	35 W
CPU multiplier (bus/core ratio)Differs	28	19
Memory bandwidth supported by processor (max)	21.3 GB/s	21.3 GB/s
Processor generationKnown for one	2nd gen Intel® Core™ i7	Unknown — not stated by the source
Processor boost frequencyKnown for one	3.5 GHz	Unknown — not stated by the source
Memoryidentical
Maximum internal memory supported by processor	16 GB	16 GB
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
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
On-board graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
Processor special featuresidentical
Intel® Anti-Theft Technology (Intel® AT)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	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	No
Intel® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	No
Operational conditionsidentical
Maximum operating temperatureKnown for one	100 °C	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	37.5 mm	Unknown — not stated by the source
HeightKnown for one	37.5 mm	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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