Product comparison · 2 cpus

Dell Opteron 2427 vs Dell Xeon E5645

13specifications compared
8differ
5identical
32known for one product only

Key differences

Processor family
- Opteron 2427:AMD Opteron
- Xeon E5645:Intel® Xeon® 5000 Sequence
Processor model
- Opteron 2427:2427
- Xeon E5645:E5645
Processor base frequency
- Opteron 2427:2.2 GHz
- Xeon E5645:2.4 GHz
Processor socket
- Opteron 2427:Socket F (1207)
- Xeon E5645:Socket B (LGA 1366)
Processor lithography
- Opteron 2427:45 nm
- Xeon E5645:32 nm
Processor cache
- Opteron 2427:0.512 MB
- Xeon E5645:12 MB
Processor cache type
- Opteron 2427:L2
- Xeon E5645:L3
Thermal Design Power (TDP)
- Opteron 2427:75 W
- Xeon E5645:80 W

Side by side

Differences highlightedShow differences only

Comparison of Opteron 2427, Xeon E5645
45 specifications	A Dell Opteron 2427 View product	B Dell Xeon E5645 View product
Processor8 differ
Processor familyDiffers	AMD Opteron	Intel® Xeon® 5000 Sequence
Processor modelDiffers	2427	E5645
Processor base frequencyDiffers	2.2 GHz	2.4 GHz
Processor socketDiffers	Socket F (1207)	Socket B (LGA 1366)
Processor lithographyDiffers	45 nm	32 nm
Processor threadsKnown for one	Unknown — not stated by the source	12
System bus rateKnown for one	Unknown — not stated by the source	5.86 GT/s
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.67 GHz
Processor cacheDiffers	0.512 MB	12 MB
Processor cache typeDiffers	L2	L3
Thermal Design Power (TDP)Differs	75 W	80 W
VID Voltage RangeKnown for one	Unknown — not stated by the source	0.75 - 1.35 V
SteppingKnown for one	Unknown — not stated by the source	B1
Bus typeKnown for one	Unknown — not stated by the source	QPI
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	32 GB/s
L2 cache speedKnown for one	2.2 GHz	Unknown — not stated by the source
Processor core voltage (AC)Known for one	1.30 V	Unknown — not stated by the source
Memoryidentical
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	288 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800,1066,1333 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Triple-channel
ECCKnown for one	Unknown — not stated by the source	Yes
Featuresidentical
Execute Disable BitKnown for one	Unknown — not stated by the source	No
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
Processor special featuresidentical
Enhanced Intel SpeedStep TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Demand Based SwitchingKnown 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
Intel Virtualization Technology (VT-x)Known for one	Unknown — not stated by the source	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
TcaseKnown for one	Unknown — not stated by the source	76.2 °C
Weight & dimensionsidentical
Processor package sizeKnown for one	Unknown — not stated by the source	42.5 mm
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)Known for one	Unknown — not stated by the source	VT-d, VT-x
L1 cacheKnown for one	0.128 MB	Unknown — not stated by the source

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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