Atom Z2520 vs Xeon L5609

Primary details

Comparing Xeon L5609 and Atom Z2520 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1885	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Power efficiency	4.92	no data
Architecture codename	Westmere-EP (2010−2011)	Clovertrail (2013)
Release date	16 March 2010 (14 years ago)	27 February 2013 (11 years ago)

Detailed specifications

Xeon L5609 and Atom Z2520 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	4 (Quad-Core)	2 (Dual-core)
Threads	4	4
Base clock speed	1.86 GHz	1.2 GHz
Boost clock speed	1.86 GHz	1.2 GHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	12 MB (shared)	0 KB
Chip lithography	32 nm	32 nm
Die size	239 mm2	65 mm2
Maximum core temperature	63 °C	90 °C
Number of transistors	1,170 million	140 million
64 bit support	+	-
Windows 11 compatibility	-	-

Compatibility

Information on Xeon L5609 and Atom Z2520 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	2	1
Socket	FCLGA1366,LGA1366	FC-MB4760
Power consumption (TDP)	40 Watt	3 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5609 and Atom Z2520. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
AES-NI	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	+	no data
PAE	40 Bit	32 Bit
Smart Idle	no data	+

Security technologies

Xeon L5609 and Atom Z2520 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon L5609 and Atom Z2520 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon L5609 and Atom Z2520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR2
Maximum memory size	288 GB	2 GB
Max memory channels	3	2
Maximum memory bandwidth	25.6 GB/s	8.5 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

SGX 544MP2

Graphics interfaces

Available interfaces and connections of Xeon L5609 and Atom Z2520 integrated GPUs.

Number of displays supported

no data

2

Peripherals

Specifications and connection of peripherals supported by Xeon L5609 and Atom Z2520.

PCIe version	2.0	no data
USB revision	no data	2.0 OTG, USB-SPH 2.0
Number of USB ports	no data	2
UART	no data	3

Pros & cons summary

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Recency	16 March 2010	27 February 2013
Physical cores	4	2
Power consumption (TDP)	40 Watt	3 Watt

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Should you still have questions on choice between Xeon L5609 and Atom Z2520, ask them in Comments section, and we shall answer.

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