Atom Z2520 vs Xeon W3503

Primary details

Comparing Xeon W3503 and Atom Z2520 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2696	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.15	no data
Market segment	Server	Laptop
Power efficiency	0.51	no data
Architecture codename	Bloomfield (2008−2010)	Clovertrail (2013)
Release date	30 March 2009 (15 years ago)	27 February 2013 (11 years ago)
Launch price (MSRP)	$65	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon W3503 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	2 (Dual-core)	2 (Dual-core)
Threads	2	4
Base clock speed	2.4 GHz	1.2 GHz
Boost clock speed	2.4 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	4 MB (shared)	0 KB
Chip lithography	45 nm	32 nm
Die size	263 mm2	65 mm2
Maximum core temperature	no data	90 °C
Number of transistors	731 million	140 million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	0.8V-1.225V	no data

Compatibility

Information on Xeon W3503 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	1	1
Socket	1366	FC-MB4760
Power consumption (TDP)	130 Watt	3 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W3503 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
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	+	no data
PAE	36 Bit	32 Bit
Smart Idle	no data	+

Security technologies

Xeon W3503 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 W3503 and Atom Z2520 are enumerated here.

VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W3503 and Atom Z2520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR2
Maximum memory size	24 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

N/A

SGX 544MP2

Graphics interfaces

Available interfaces and connections of Xeon W3503 and Atom Z2520 integrated GPUs.

Number of displays supported

no data

2

Peripherals

Specifications and connection of peripherals supported by Xeon W3503 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	30 March 2009	27 February 2013
Threads	2	4
Chip lithography	45 nm	32 nm
Power consumption (TDP)	130 Watt	3 Watt

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