Product comparison · 2 cpus

Acer Intel Xeon E5540 vs Acer Intel Xeon L5520

35specifications compared
6differ
29identical
13known for one product only

Key differences

The Acer Intel Xeon E5540 has 0.27 GHz more processor base frequency than the Acer Intel Xeon L5520 (2.53 GHz vs 2.26 GHz). The Acer Intel Xeon E5540 has 20 W more thermal Design Power (TDP) than the Acer Intel Xeon L5520 (80 W vs 60 W). The Acer Intel Xeon E5540 has 2 more CPU multiplier (bus/core ratio) than the Acer Intel Xeon L5520 (19 vs 17). Only the Acer Intel Xeon E5540 has on-board graphics card. Processor model: E5540 on the Acer Intel Xeon E5540, L5520 on the Acer Intel Xeon L5520.

Processor model
- Intel Xeon E5540:E5540
- Intel Xeon L5520:L5520
Processor base frequency
- Intel Xeon E5540:2.53 GHz
- Intel Xeon L5520:2.26 GHz
Thermal Design Power (TDP)
- Intel Xeon E5540:80 W
- Intel Xeon L5520:60 W
CPU multiplier (bus/core ratio)
- Intel Xeon E5540:19
- Intel Xeon L5520:17
On-board graphics card
- Intel Xeon E5540:Yes
- Intel Xeon L5520:No
Tcase
- Intel Xeon E5540:76 °C
- Intel Xeon L5520:70 °C

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5540, Intel Xeon L5520
48 specifications	A Acer Intel Xeon E5540 View product	B Acer Intel Xeon L5520 View product
Processor4 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5540	L5520
Processor base frequencyDiffers	2.53 GHz	2.26 GHz
Processor cores	4	4
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	45 nm	45 nm
Package typeKnown for one	Unknown — not stated by the source	Tray
Component for	Server/workstation	Server/workstation
Processor threads	8	8
System bus rate	5.86 GT/s	5.86 GT/s
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor cache	8 MB	8 MB
Processor cache type	L3	L3
L3 cache speedKnown for one	Unknown — not stated by the source	2.26 GHz
Thermal Design Power (TDP)Differs	80 W	60 W
VID Voltage Range	0.75 - 1.35 V	0.75 - 1.35 V
Stepping	D0	D0
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)Differs	19	17
Number of QPI links	2	2
Memory bandwidth supported by processor (max)	25.6 GB/s	25.6 GB/s
Processor boost frequencyKnown for one	2.8 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 clock speeds supported by processor	800,1066 MHz	800,1066 MHz
Memory channels	Triple-channel	Triple-channel
ECC	Yes	Yes
Graphics1 differ
On-board graphics cardDiffers	Yes	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Market segment	Server	Server
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	731 M
Processing Die size	263 mm²	263 mm²
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Embedded options availableKnown for one	Yes	Unknown — not stated by the source
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel® Smart CacheKnown 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
Intel Trusted Execution TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	Yes	Unknown — not stated by the source
Operational conditions1 differ
TcaseDiffers	76 °C	70 °C
Weight & dimensionsidentical
Processor package sizeKnown for one	Unknown — not stated by the source	42.5 mm
Package dimensions (WxDxH)Known for one	42.5 x 42.5 x 45 mm	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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