Xeon L5518 vs E5420

Primary details

Comparing Xeon E5420 and Xeon L5518 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2283	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	1.50	no data
Architecture codename	no data	Gainestown (2009−2010)
Release date	1 October 2007 (17 years ago)	30 March 2009 (15 years ago)

Detailed specifications

Xeon E5420 and Xeon L5518 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	no data	4 (Quad-Core)
Threads	no data	8
Base clock speed	2.5 GHz	2.133 GHz
Boost clock speed	no data	2.4 GHz
L1 cache	no data	64 KB (per core)
L2 cache	no data	256 KB (per core)
L3 cache	12 MB L2 Cache	8 MB (shared)
Chip lithography	45 nm	45 nm
Die size	no data	263 mm2
Maximum core temperature	67 °C	no data
Number of transistors	no data	731 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon E5420 and Xeon L5518 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	no data	2
Socket	LGA771	1366
Power consumption (TDP)	80 Watt	60 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5420 and Xeon L5518. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data

Security technologies

Xeon E5420 and Xeon L5518 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5420 and Xeon L5518 are enumerated here.

VT-x	+	+
EPT	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5420 and Xeon L5518. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E5420 and Xeon L5518.

PCIe version

no data

2.0

Pros & cons summary

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Recency	1 October 2007	30 March 2009
Power consumption (TDP)	80 Watt	60 Watt

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