Celeron 1020M vs Atom Z520

Primary details

Comparing Atom Z520 and Celeron 1020M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	2566
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Atom	Intel Celeron
Architecture codename	Silverthorne (2008−2010)	Ivy Bridge (2012−2013)
Release date	2 April 2008 (16 years ago)	21 January 2013 (11 years ago)
Launch price (MSRP)	$65	$86

Detailed specifications

Atom Z520 and Celeron 1020M 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)	2 (Dual-core)
Threads	2	2
Base clock speed	1.33 GHz	2.1 GHz
Boost clock speed	0.03 GHz	2.1 GHz
Bus type	FSB	no data
Bus rate	533.33 MT/s	5 GT/s
Multiplier	10	no data
L1 cache	56 KB	128 KB
L2 cache	512 KB	512 KB
L3 cache	0 KB	2 MB
Chip lithography	45 nm	22 nm
Die size	24.18 mm2	94 mm2
Maximum core temperature	90 °C	105 °C
Maximum case temperature (TCase)	no data	105 °C
Number of transistors	47 Million	1,400 million
64 bit support	-	+
Windows 11 compatibility	-	-
VID voltage range	0.75-1.1V	no data

Compatibility

Information on Atom Z520 and Celeron 1020M 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	FCPGA988
Power consumption (TDP)	2 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z520 and Celeron 1020M. 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
Enhanced SpeedStep (EIST)	+	+
My WiFi	no data	-
Turbo Boost Technology	-	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	+
Demand Based Switching	+	no data
FDI	no data	+
Fast Memory Access	no data	+
FSB parity	-	no data
Status	Discontinued	Discontinued

Security technologies

Atom Z520 and Celeron 1020M technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z520 and Celeron 1020M 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 Celeron 1020M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3
Maximum memory size	no data	32 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	-	Intel® HD Graphics for 3rd Generation Intel® Processors
Clear Video HD	-	-
Graphics max frequency	-	1 GHz
InTru 3D	-	-

Graphics interfaces

Available interfaces and connections of Atom Z520 and Celeron 1020M integrated GPUs.

Number of displays supported	-	3
eDP	-	+
DisplayPort	-	+
HDMI	-	+
SDVO	-	+
CRT	-	+

Peripherals

Specifications and connection of peripherals supported by Atom Z520 and Celeron 1020M.

PCIe version	no data	2.0
PCI Express lanes	no data	16

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	21 January 2013
Physical cores	1	2
Chip lithography	45 nm	22 nm
Power consumption (TDP)	2 Watt	35 Watt

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Should you still have questions on choice between Atom Z520 and Celeron 1020M, ask them in Comments section, and we shall answer.

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