Product comparison · 2 cpus

Lenovo Intel Xeon E5-2648L vs Lenovo Intel Xeon E5-2658

40specifications compared
4differ
36identical
7known for one product only

Key differences

Processor model
- Intel Xeon E5-2648L:E5-2648L
- Intel Xeon E5-2658:E5-2658
Processor base frequency
- Intel Xeon E5-2648L:1.8 GHz
- Intel Xeon E5-2658:2.1 GHz
Processor boost frequency
- Intel Xeon E5-2648L:2.1 GHz
- Intel Xeon E5-2658:2.4 GHz
Thermal Design Power (TDP)
- Intel Xeon E5-2648L:70 W
- Intel Xeon E5-2658:95 W

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5-2648L, Intel Xeon E5-2658
47 specifications	A Lenovo Intel Xeon E5-2648L View product	B Lenovo Intel Xeon E5-2658 View product
Processor4 differ
Processor family	Intel® Xeon® E5 Family	Intel® Xeon® E5 Family
Processor modelDiffers	E5-2648L	E5-2658
Processor base frequencyDiffers	1.8 GHz	2.1 GHz
Processor cores	8	8
Processor socket	LGA 2011 (Socket R)	LGA 2011 (Socket R)
Processor lithography	32 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threads	16	16
System bus rate	8 GT/s	8 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	2.1 GHz	2.4 GHz
Processor cache	20 MB	20 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	70 W	95 W
VID Voltage RangeKnown for one	Unknown — not stated by the source	0.6 - 1.35 V
Bus type	QPI	QPI
Number of QPI links	2	2
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	51.2 GB/s
Processor codenameKnown for one	Sandy Bridge	Unknown — not stated by the source
Memoryidentical
Maximum internal memory supported by processor	384 GB	384 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	800,1066,1333,1600 MHz	800,1066,1333,1600 MHz
Memory channels	Quad-channel	Quad-channel
ECC	Yes	Yes
Graphicsidentical
On-board graphics card	No	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Market segment	Embedded	Embedded
Maximum number of PCI Express lanes	40	40
PCI Express slots version	3.0	3.0
CPU configuration (max)	2	2
Embedded options available	Yes	Yes
ScalabilityKnown for one	Unknown — not stated by the source	2S
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Flex Memory Access	No	No
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® Identity Protection Technology (Intel® IPT)	No	No
Intel® Turbo Boost Technology	2.0	2.0
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 Eligibility	No	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
TcaseKnown for one	Unknown — not stated by the source	88 °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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