Atom Z520 vs Z515

Primary details

Comparing Atom Z515 and Atom Z520 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Atom	Intel Atom
Architecture codename	Silverthorne (2008−2010)	Silverthorne (2008−2010)
Release date	8 April 2009 (15 years ago)	2 April 2008 (16 years ago)
Launch price (MSRP)	no data	$65

Detailed specifications

Atom Z515 and Atom Z520 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	1 (Single-Core)	1 (Single-Core)
Threads	2	2
Base clock speed	1.2 GHz	1.33 GHz
Boost clock speed	1.2 GHz	0.03 GHz
Bus type	FSB	FSB
Bus rate	400 MT/s	533.33 MT/s
Multiplier	12	10
L1 cache	56 KB (per core)	56 KB
L2 cache	512 KB (per core)	512 KB
L3 cache	0 KB	0 KB
Chip lithography	45 nm	45 nm
Die size	24.18 mm2	24.18 mm2
Maximum core temperature	90 °C	90 °C
Number of transistors	47 million	47 Million
64 bit support	-	-
Windows 11 compatibility	-	-
VID voltage range	no data	0.75-1.1V

Compatibility

Information on Atom Z515 and Atom Z520 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 (Uniprocessor)	1 (Uniprocessor)
Socket	PBGA441	PBGA441
Power consumption (TDP)	1.4 Watt	2 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z515 and Atom Z520. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	+	+
FSB parity	-	-
Status	Discontinued	Discontinued

Security technologies

Atom Z515 and Atom Z520 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z515 and Atom Z520 are enumerated here.

VT-d	-	-
VT-x	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z515 and Atom Z520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

unknown

no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

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Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Recency	8 April 2009	2 April 2008
Power consumption (TDP)	1 Watt	2 Watt

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Should you still have questions on choice between Atom Z515 and Atom Z520, ask them in Comments section, and we shall answer.

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