Product comparison · 2 cpus

Dell Xeon E5-2440 vs Dell Xeon E5-2643

48specifications compared
17differ
31identical
7known for one product only

Key differences

The Dell Xeon E5-2643 has 0.9 GHz more processor base frequency than the Dell Xeon E5-2440 (3.3 GHz vs 2.4 GHz). The Dell Xeon E5-2440 has 2 more processor cores than the Dell Xeon E5-2643 (6 vs 4). The Dell Xeon E5-2440 has 4 more processor threads than the Dell Xeon E5-2643 (12 vs 8). Processor model: E5-2440 on the Dell Xeon E5-2440, E5-2643 on the Dell Xeon E5-2643. Processor socket: LGA 1356 (Socket B2) on the Dell Xeon E5-2440, LGA 2011 (Socket R) on the Dell Xeon E5-2643.

Processor model
- Xeon E5-2440:E5-2440
- Xeon E5-2643:E5-2643
Processor base frequency
- Xeon E5-2440:2.4 GHz
- Xeon E5-2643:3.3 GHz
Processor cores
- Xeon E5-2440:6
- Xeon E5-2643:4
Processor socket
- Xeon E5-2440:LGA 1356 (Socket B2)
- Xeon E5-2643:LGA 2011 (Socket R)
Processor threads
- Xeon E5-2440:12
- Xeon E5-2643:8
System bus rate
- Xeon E5-2440:7.2 GT/s
- Xeon E5-2643:8 GT/s
Processor boost frequency
- Xeon E5-2440:2.9 GHz
- Xeon E5-2643:3.5 GHz
Processor cache
- Xeon E5-2440:15 MB
- Xeon E5-2643:10 MB

Side by side

Differences highlightedShow differences only

Comparison of Xeon E5-2440, Xeon E5-2643
55 specifications	A Dell Xeon E5-2440 View product	B Dell Xeon E5-2643 View product
Processor13 differ
Processor modelDiffers	E5-2440	E5-2643
Processor base frequencyDiffers	2.4 GHz	3.3 GHz
Processor coresDiffers	6	4
Processor socketDiffers	LGA 1356 (Socket B2)	LGA 2011 (Socket R)
Processor threadsDiffers	12	8
System bus rateDiffers	7.2 GT/s	8 GT/s
Processor boost frequencyDiffers	2.9 GHz	3.5 GHz
Processor cacheDiffers	15 MB	10 MB
L3 cache speedKnown for one	2.4 GHz	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	95 W	130 W
VID Voltage RangeDiffers	0.6 - 1.35 V	0.60 - 1.35 V
Compatible chipsetsKnown for one	Intel® C602, Intel® C602J, Intel® C604, Intel® C606, Intel C608	Unknown — not stated by the source
SteppingDiffers	C2	M1
Number of QPI linksDiffers	1	2
Memory bandwidth supported by processor (max)Differs	32 GB/s	51.2 GB/s
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	35
Memory2 differ
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	1066,1333,1600 MHz
Memory channelsDiffers	Triple-channel	Quad-channel
Features1 differ
Maximum number of PCI Express lanesDiffers	24	40
ScalabilityKnown for one	S2S	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	32 nm
Weight & dimensions1 differ
Processor package sizeDiffers	45 mm	52.5 mm
Other featuresidentical
CompatibilityKnown for one	DELL PowerEdge R420, DX6104 CSN, DX6104 SN	Unknown — not stated by the source
Operational conditionsidentical
TcaseKnown for one	Unknown — not stated by the source	73 °C

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