Product comparison · 2 cpus

Dell Xeon L5520 vs Dell Xeon X5570

42specifications compared
8differ
34identical
5known for one product only

Key differences

Processor model
- Xeon L5520:L5520
- Xeon X5570:X5570
Processor base frequency
- Xeon L5520:2.26 GHz
- Xeon X5570:2.93 GHz
System bus rate
- Xeon L5520:5.86 GT/s
- Xeon X5570:6.4 GT/s
Thermal Design Power (TDP)
- Xeon L5520:60 W
- Xeon X5570:95 W
VID Voltage Range
- Xeon L5520:0.750 - 1.350 V
- Xeon X5570:0.750 - 1.35 V
CPU multiplier (bus/core ratio)
- Xeon L5520:17
- Xeon X5570:22
Memory bandwidth supported by processor (max)
- Xeon L5520:25.6 GB/s
- Xeon X5570:32 GB/s
Tcase
- Xeon L5520:70 °C
- Xeon X5570:75 °C

Side by side

Differences highlightedShow differences only

Comparison of Xeon L5520, Xeon X5570
47 specifications	A Dell Xeon L5520 View product	B Dell Xeon X5570 View product
Processor7 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	L5520	X5570
Processor base frequencyDiffers	2.26 GHz	2.93 GHz
Processor cores	4	4
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	45 nm	45 nm
Component for	Server/workstation	Server/workstation
Processor threads	8	8
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.3 GHz
Processor cache	8 MB	8 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	60 W	95 W
VID Voltage RangeDiffers	0.750 - 1.350 V	0.750 - 1.35 V
Stepping	D0	D0
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)Differs	17	22
Number of QPI links	2	2
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	32 GB/s
L3 cache speedKnown for one	2.26 GHz	Unknown — not stated by the source
Memoryidentical
Maximum internal memory supported by processor	144 GB	144 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory channels	Triple-channel	Triple-channel
ECC	Yes	Yes
Memory clock speeds supported by processorKnown for one	800,1066 MHz	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	No	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Market segment	Server	Server
Number of Processing Die Transistors	731 M	731 M
Processing Die size	263 mm²	263 mm²
CPU configuration (max)Known for one	Unknown — not stated by the source	2
Embedded options available	No	No
Physical Address Extension (PAE)	Yes	Yes
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	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	70 °C	75 °C
Weight & dimensionsidentical
Processor package size	42.5 mm	42.5 mm
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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