Product comparison · 2 cpus

Dell Xeon E5640 vs HP Intel Xeon E5503, FIO

32specifications compared
12differ
20identical
9known for one product only

Key differences

The Dell Xeon E5640 has 0.66 GHz more processor base frequency than the HP Intel Xeon E5503, FIO (2.66 GHz vs 2 GHz). The Dell Xeon E5640 has 2 more processor cores than the HP Intel Xeon E5503, FIO (4 vs 2). The HP Intel Xeon E5503, FIO has 13 nm more processor lithography than the Dell Xeon E5640 (45 nm vs 32 nm). Processor model: E5640 on the Dell Xeon E5640, E5503 on the HP Intel Xeon E5503, FIO. Processor operating modes: 64-bit on the Dell Xeon E5640, 32-bit, 64-bit on the HP Intel Xeon E5503, FIO.

Processor model
- Xeon E5640:E5640
- Intel Xeon E5503, FIO:E5503
Processor base frequency
- Xeon E5640:2.66 GHz
- Intel Xeon E5503, FIO:2 GHz
Processor cores
- Xeon E5640:4
- Intel Xeon E5503, FIO:2
Processor lithography
- Xeon E5640:32 nm
- Intel Xeon E5503, FIO:45 nm
Processor threads
- Xeon E5640:8
- Intel Xeon E5503, FIO:2
System bus rate
- Xeon E5640:5.86 GT/s
- Intel Xeon E5503, FIO:4.8 GT/s
Processor operating modes
- Xeon E5640:64-bit
- Intel Xeon E5503, FIO:32-bit, 64-bit
Processor cache
- Xeon E5640:12 MB
- Intel Xeon E5503, FIO:4 MB

Side by side

Differences highlightedShow differences only

Comparison of Xeon E5640, Intel Xeon E5503, FIO
41 specifications	A Dell Xeon E5640 View product	B HP Intel Xeon E5503, FIO View product
Processor9 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5640	E5503
Processor base frequencyDiffers	2.66 GHz	2 GHz
Processor coresDiffers	4	2
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithographyDiffers	32 nm	45 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	8	2
System bus rateDiffers	5.86 GT/s	4.8 GT/s
Processor operating modesDiffers	64-bit	32-bit, 64-bit
Processor boost frequencyKnown for one	2.93 GHz	Unknown — not stated by the source
Processor cacheDiffers	12 MB	4 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)	80 W	80 W
VID Voltage Range	0.75 - 1.35 V	0.75 - 1.35 V
Bus type	QPI	QPI
Number of QPI links	2	2
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	19.2 GB/s
SteppingKnown for one	Unknown — not stated by the source	D0
Memory2 differ
Maximum internal memory supported by processorDiffers	288 GB	144 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	800,1066 MHz	800 MHz
Memory channels	Triple-channel	Triple-channel
ECC	Yes	Yes
Graphicsidentical
On-board graphics card	No	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Market segment	Server	Server
Supported instruction setsKnown for one	AES, SSE4.2	Unknown — not stated by the source
CPU configuration (max)Known for one	2	Unknown — not stated by the source
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Demand Based Switching	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	77.6 °C	76 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	VT-d, 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.

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