Xeon L5618 vs L5420

Primary details

Comparing Xeon L5420 and Xeon L5618 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2236	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	2.55	no data
Architecture codename	no data	Westmere-EP (2010−2011)
Release date	1 January 2008 (16 years ago)	16 March 2010 (14 years ago)

Detailed specifications

Xeon L5420 and Xeon L5618 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	1.87 GHz
Boost clock speed	no data	2.26 GHz
L1 cache	no data	64 KB (per core)
L2 cache	no data	256 KB (per core)
L3 cache	12 MB L2 Cache	12 MB (shared)
Chip lithography	45 nm	32 nm
Die size	no data	239 mm2
Maximum core temperature	57 °C	87 °C
Number of transistors	no data	1,170 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon L5420 and Xeon L5618 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	FCLGA1366,LGA1366
Power consumption (TDP)	50 Watt	40 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5420 and Xeon L5618. You'll probably need this information if you require some particular technology.

AES-NI	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	1.0
Hyper-Threading Technology	-	+
Idle States	+	+
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data

Security technologies

Xeon L5420 and Xeon L5618 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 L5420 and Xeon L5618 are enumerated here.

VT-d	no data	+
VT-x	+	+
EPT	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon L5420 and Xeon L5618. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR3

Peripherals

Specifications and connection of peripherals supported by Xeon L5420 and Xeon L5618.

PCIe version

no data

2.0

Pros & cons summary

---

Recency	1 January 2008	16 March 2010
Chip lithography	45 nm	32 nm
Power consumption (TDP)	50 Watt	40 Watt

---

Should you still have questions on choice between Xeon L5420 and Xeon L5618, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---