i3-N305 vs Atom Z520

Primary details

Comparing Atom Z520 and Core i3-N305 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	1059
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Atom	no data
Power efficiency	no data	39.57
Architecture codename	Silverthorne (2008−2010)	Alder Lake-N (2023)
Release date	2 April 2008 (16 years ago)	3 January 2023 (1 year ago)
Launch price (MSRP)	$65	$309

Detailed specifications

Atom Z520 and Core i3-N305 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)	8 (Octa-Core)
Threads	2	8
Base clock speed	1.33 GHz	0.1 GHz
Boost clock speed	0.03 GHz	3.8 GHz
Bus type	FSB	no data
Bus rate	533.33 MT/s	no data
Multiplier	10	no data
L1 cache	56 KB	96 KB (per core)
L2 cache	512 KB	2 MB (per module)
L3 cache	0 KB	6 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	24.18 mm2	no data
Maximum core temperature	90 °C	105 °C
Number of transistors	47 Million	no data
64 bit support	-	+
Windows 11 compatibility	-	+
VID voltage range	0.75-1.1V	no data

Compatibility

Information on Atom Z520 and Core i3-N305 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
Socket	PBGA441	FCBGA1264
Power consumption (TDP)	2 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z520 and Core i3-N305. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	-
Idle States	+	no data
Thermal Monitoring	+	+
Demand Based Switching	+	no data
GPIO	no data	+
FSB parity	-	no data

Security technologies

Atom Z520 and Core i3-N305 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z520 and Core i3-N305 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z520 and Core i3-N305. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR4, DDR5
Maximum memory size	no data	16 GB
Max memory channels	no data	1

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	-	Intel UHD Graphics
Quick Sync Video	-	+
Graphics max frequency	-	1.25 GHz
Execution Units	-	32

Graphics interfaces

Available interfaces and connections of Atom Z520 and Core i3-N305 integrated GPUs.

Number of displays supported

-

3

Graphics image quality

Maximum display resolutions supported by Atom Z520 and Core i3-N305 integrated GPUs, including resolutions over different interfaces.

4K resolution support	-	+
Max resolution over HDMI 1.4	-	4096 x 2160@60Hz
Max resolution over DisplayPort	-	4096 x 2160@60Hz

Graphics API support

APIs supported by Atom Z520 and Core i3-N305 integrated GPUs, sometimes API versions are included.

DirectX	-	12.1
OpenGL	-	4.6

Peripherals

Specifications and connection of peripherals supported by Atom Z520 and Core i3-N305.

PCIe version	no data	3.0
PCI Express lanes	no data	9
USB revision	no data	2.0/3.2

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	2 April 2008	3 January 2023
Physical cores	1	8
Threads	2	8
Power consumption (TDP)	2 Watt	15 Watt

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Should you still have questions on choice between Atom Z520 and Core i3-N305, ask them in Comments section, and we shall answer.

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