Product comparison · 2 cpus

Lenovo Intel Xeon E5649 vs Lenovo Intel Xeon X5687

18specifications compared
7differ
11identical
4known for one product only

Key differences

The Lenovo Intel Xeon X5687 has 1.07 GHz more processor base frequency than the Lenovo Intel Xeon E5649 (3.6 GHz vs 2.53 GHz). The Lenovo Intel Xeon E5649 has 2 more processor cores than the Lenovo Intel Xeon X5687 (6 vs 4). The Lenovo Intel Xeon X5687 has 0.54 GT/s more system bus rate than the Lenovo Intel Xeon E5649 (6.4 GT/s vs 5.86 GT/s). Processor model: E5649 on the Lenovo Intel Xeon E5649, X5687 on the Lenovo Intel Xeon X5687.

Processor model
- Intel Xeon E5649:E5649
- Intel Xeon X5687:X5687
Processor base frequency
- Intel Xeon E5649:2.53 GHz
- Intel Xeon X5687:3.6 GHz
Processor cores
- Intel Xeon E5649:6
- Intel Xeon X5687:4
System bus rate
- Intel Xeon E5649:5.86 GT/s
- Intel Xeon X5687:6.4 GT/s
Thermal Design Power (TDP)
- Intel Xeon E5649:80 W
- Intel Xeon X5687:130 W
CPU multiplier (bus/core ratio)
- Intel Xeon E5649:19
- Intel Xeon X5687:27
Maximum operating temperature
- Intel Xeon E5649:76.2 °C
- Intel Xeon X5687:80.4 °C

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5649, Intel Xeon X5687
22 specifications	A Lenovo Intel Xeon E5649 View product	B Lenovo Intel Xeon X5687 View product
Processor6 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5649	X5687
Processor base frequencyDiffers	2.53 GHz	3.6 GHz
Processor coresDiffers	6	4
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threadsKnown for one	12	Unknown — not stated by the source
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor operating modes	64-bit	64-bit
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Processor front side bus	1333 MHz	1333 MHz
Thermal Design Power (TDP)Differs	80 W	130 W
VID Voltage Range	0.750 - 1.350 V	0.750 - 1.350 V
SteppingKnown for one	B1	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Differs	19	27
Processor codeKnown for one	SLBZ8	Unknown — not stated by the source
Package typeKnown for one	Unknown — not stated by the source	Tray
Featuresidentical
Market segment	Server	Server
Bandwidth	26214.4 MB/s	26214.4 MB/s
Operational conditions1 differ
Maximum operating temperatureDiffers	76.2 °C	80.4 °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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