Product comparison · 2 cpus

HP Intel Xeon X5660, Ref vs HP Intel Xeon X5680 Kit, Ref

40specifications compared
6differ
34identical
6known for one product only

Key differences

The HP Intel Xeon X5680 Kit, Ref has 0.53 GHz more processor base frequency than the HP Intel Xeon X5660, Ref (3.33 GHz vs 2.8 GHz). The HP Intel Xeon X5680 Kit, Ref has 0.4 GHz more processor boost frequency than the HP Intel Xeon X5660, Ref (3.6 GHz vs 3.2 GHz). The HP Intel Xeon X5680 Kit, Ref has 35 W more thermal Design Power (TDP) than the HP Intel Xeon X5660, Ref (130 W vs 95 W). Processor model: X5660 on the HP Intel Xeon X5660, Ref, X5680 on the HP Intel Xeon X5680 Kit, Ref. Processor socket: Socket B (LGA 1366) on the HP Intel Xeon X5660, Ref, LGA 1356 (Socket B2) on the HP Intel Xeon X5680 Kit, Ref.

Processor model
- Intel Xeon X5660, Ref:X5660
- Intel Xeon X5680 Kit, Ref:X5680
Processor base frequency
- Intel Xeon X5660, Ref:2.8 GHz
- Intel Xeon X5680 Kit, Ref:3.33 GHz
Processor socket
- Intel Xeon X5660, Ref:Socket B (LGA 1366)
- Intel Xeon X5680 Kit, Ref:LGA 1356 (Socket B2)
Processor boost frequency
- Intel Xeon X5660, Ref:3.2 GHz
- Intel Xeon X5680 Kit, Ref:3.6 GHz
Thermal Design Power (TDP)
- Intel Xeon X5660, Ref:95 W
- Intel Xeon X5680 Kit, Ref:130 W
Tcase
- Intel Xeon X5660, Ref:81.3 °C
- Intel Xeon X5680 Kit, Ref:78.5 °C

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon X5660, Ref, Intel Xeon X5680 Kit, Ref
46 specifications	A HP Intel Xeon X5660, Ref View product	B HP Intel Xeon X5680 Kit, Ref View product
Processor5 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	X5660	X5680
Processor base frequencyDiffers	2.8 GHz	3.33 GHz
Processor cores	6	6
Processor socketDiffers	Socket B (LGA 1366)	LGA 1356 (Socket B2)
Processor lithography	32 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threads	12	12
System bus rate	6.4 GT/s	6.4 GT/s
Processor operating modes	32-bit, 64-bit	32-bit, 64-bit
Processor boost frequencyDiffers	3.2 GHz	3.6 GHz
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Processor front side busKnown for one	1333 MHz	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	95 W	130 W
VID Voltage Range	0.750 - 1.350 V	0.750 - 1.350 V
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)Known for one	20	Unknown — not stated by the source
Number of QPI links	2	2
Memory bandwidth supported by processor (max)	32 GB/s	32 GB/s
SteppingKnown for one	Unknown — not stated by the source	B1
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 Technologies	No	No
Market segment	Server	Server
Embedded options available	No	No
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
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® Smart CacheKnown for one	Yes	Unknown — not stated by the source
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
Operational conditions1 differ
TcaseDiffers	81.3 °C	78.5 °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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