Product comparison · 2 cpus

HP Intel Xeon E5645, Ref vs HP Intel Xeon L5640, FIO Kit, Ref

41specifications compared
6differ
35identical
3known for one product only

Key differences

The HP Intel Xeon E5645, Ref has 0.14 GHz more processor base frequency than the HP Intel Xeon L5640, FIO Kit, Ref (2.4 GHz vs 2.26 GHz). The HP Intel Xeon L5640, FIO Kit, Ref has 0.13 GHz more processor boost frequency than the HP Intel Xeon E5645, Ref (2.8 GHz vs 2.67 GHz). The HP Intel Xeon E5645, Ref has 20 W more thermal Design Power (TDP) than the HP Intel Xeon L5640, FIO Kit, Ref (80 W vs 60 W). Processor model: E5645 on the HP Intel Xeon E5645, Ref, L5640 on the HP Intel Xeon L5640, FIO Kit, Ref. VID Voltage Range: 0.750 - 1.350 V on the HP Intel Xeon E5645, Ref, 0.75 - 1.35 V on the HP Intel Xeon L5640, FIO Kit, Ref.

Processor model
- Intel Xeon E5645, Ref:E5645
- Intel Xeon L5640, FIO Kit, Ref:L5640
Processor base frequency
- Intel Xeon E5645, Ref:2.4 GHz
- Intel Xeon L5640, FIO Kit, Ref:2.26 GHz
Processor boost frequency
- Intel Xeon E5645, Ref:2.67 GHz
- Intel Xeon L5640, FIO Kit, Ref:2.8 GHz
Thermal Design Power (TDP)
- Intel Xeon E5645, Ref:80 W
- Intel Xeon L5640, FIO Kit, Ref:60 W
VID Voltage Range
- Intel Xeon E5645, Ref:0.750 - 1.350 V
- Intel Xeon L5640, FIO Kit, Ref:0.75 - 1.35 V
Tcase
- Intel Xeon E5645, Ref:76.2 °C
- Intel Xeon L5640, FIO Kit, Ref:69.4 °C

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5645, Ref, Intel Xeon L5640, FIO Kit, Ref
44 specifications	A HP Intel Xeon E5645, Ref View product	B HP Intel Xeon L5640, FIO Kit, Ref View product
Processor5 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5645	L5640
Processor base frequencyDiffers	2.4 GHz	2.26 GHz
Processor cores	6	6
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threads	12	12
System bus rate	5.86 GT/s	5.86 GT/s
Processor operating modes	32-bit, 64-bit	32-bit, 64-bit
Processor boost frequencyDiffers	2.67 GHz	2.8 GHz
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	80 W	60 W
VID Voltage RangeDiffers	0.750 - 1.350 V	0.75 - 1.35 V
Stepping	B1	B1
Bus type	QPI	QPI
Number of QPI links	2	2
Memory bandwidth supported by processor (max)	32 GB/s	32 GB/s
Memoryidentical
Maximum internal memory supported by processor	288 GB	288 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	800,1066,1333 MHz	800,1066,1333 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
Thermal Monitoring TechnologiesKnown for one	No	Unknown — not stated by the source
Market segment	Server	Server
Supported instruction sets	SSE4.2	SSE4.2
Embedded options available	Yes	Yes
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution Technology	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Turbo Boost Technology	Yes	Yes
Intel Demand Based Switching	Yes	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)	Yes	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	76.2 °C	69.4 °C
Technical detailsidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
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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