Product comparison · 2 cpus

Dell Xeon E5-2403 vs Dell Xeon E5540

41specifications compared
19differ
22identical
15known for one product only

Key differences

Processor family
- Xeon E5-2403:Intel® Xeon® E5 Family
- Xeon E5540:Intel® Xeon® 5000 Sequence
Processor model
- Xeon E5-2403:E5-2403
- Xeon E5540:E5540
Processor base frequency
- Xeon E5-2403:1.8 GHz
- Xeon E5540:2.53 GHz
Processor socket
- Xeon E5-2403:LGA 1356 (Socket B2)
- Xeon E5540:Socket B (LGA 1366)
Processor lithography
- Xeon E5-2403:32 nm
- Xeon E5540:45 nm
Processor threads
- Xeon E5-2403:4
- Xeon E5540:8
System bus rate
- Xeon E5-2403:6.4 GT/s
- Xeon E5540:5.86 GT/s
Processor cache
- Xeon E5-2403:10 MB
- Xeon E5540:8 MB

Side by side

Differences highlightedShow differences only

Comparison of Xeon E5-2403, Xeon E5540
56 specifications	A Dell Xeon E5-2403 View product	B Dell Xeon E5540 View product
Processor13 differ
Processor familyDiffers	Intel® Xeon® E5 Family	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5-2403	E5540
Processor base frequencyDiffers	1.8 GHz	2.53 GHz
Processor cores	4	4
Processor socketDiffers	LGA 1356 (Socket B2)	Socket B (LGA 1366)
Processor lithographyDiffers	32 nm	45 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	4	8
System bus rateDiffers	6.4 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor cacheDiffers	10 MB	8 MB
Processor cache type	L3	L3
L3 cache speedDiffers	1.8 GHz	2.53 GHz
Thermal Design Power (TDP)	80 W	80 W
VID Voltage RangeDiffers	0.6 - 1.35 V	0.75 - 1.35 V
SteppingDiffers	M1	D0
Bus type	QPI	QPI
Number of QPI linksDiffers	1	2
Memory bandwidth supported by processor (max)Differs	25 GB/s	25.6 GB/s
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.8 GHz
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	19
Memory1 differ
Maximum internal memory supported by processorDiffers	384 GB	144 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	800,1066 MHz	800,1066 MHz
Memory channels	Triple-channel	Triple-channel
ECC	Yes	Yes
Graphicsidentical
On-board graphics card	No	No
Features1 differ
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Thermal Monitoring TechnologiesKnown for one	Yes	Unknown — not stated by the source
Market segment	Server	Server
Maximum number of PCI Express lanesKnown for one	40	Unknown — not stated by the source
PCI Express slots versionKnown for one	3.0	Unknown — not stated by the source
Supported instruction setsKnown for one	AVX	Unknown — not stated by the source
CPU configuration (max)	2	2
Embedded options availableDiffers	No	Yes
ScalabilityKnown for one	S2S	Unknown — not stated by the source
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	731 M
Processing Die sizeKnown for one	Unknown — not stated by the source	263 mm²
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor special features3 differ
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Flex Memory AccessKnown for one	Yes	Unknown — not stated by the source
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Yes	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	No	Yes
Intel Demand Based Switching	Yes	Yes
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
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)	Yes	Yes
Intel® vPro™ Platform EligibilityKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions1 differ
Processor package sizeDiffers	45 mm	42.5 mm
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x	VT-d, VT-x
Operational conditionsidentical
TcaseKnown for one	Unknown — not stated by the source	76 °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.

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