Atom Z2420 vs Celeron 445

Primary details

Comparing Celeron 445 and Atom Z2420 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	Desktop processor	Laptop
Architecture codename	Conroe-CL (2008)	Saltwell
Release date	May 2008 (16 years ago)	1 January 2013 (11 years ago)
Current price	$23	$32

Detailed specifications

Celeron 445 and Atom Z2420 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	1	2
Base clock speed	1.86 GHz	no data
Boost clock speed	1.87 GHz	1.2 GHz
L1 cache	64 KB	64K (per core)
L2 cache	512 KB	512K (per core)
L3 cache	0 KB	0 KB
Chip lithography	65 nm	32 nm
Die size	76 mm2	65 mm2
Maximum core temperature	no data	90 °C
Number of transistors	105 million	140 million
64 bit support	+	-
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Celeron 445 and Atom Z2420 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	771	FC-MB4617
Power consumption (TDP)	65 Watt	3 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 445 and Atom Z2420. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE, Intel® SSE2, Intel® SSE3
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
Idle States	no data	+
Thermal Monitoring	no data	+
Demand Based Switching	-	no data
PAE	no data	32 Bit
GPIO	no data	152
FSB parity	+	no data
Status	Announced	Discontinued

Security technologies

Celeron 445 and Atom Z2420 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 445 and Atom Z2420 are enumerated here.

VT-x

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 445 and Atom Z2420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR2
Maximum memory size	no data	1 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	6.4 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

PowerVR SGX540 (400 MHz)

Graphics interfaces

Available interfaces and connections of Celeron 445 and Atom Z2420 integrated GPUs.

Number of displays supported

no data

2

Peripherals

Specifications and connection of peripherals supported by Celeron 445 and Atom Z2420.

USB revision	no data	2.0 OTG
Number of USB ports	no data	1
UART	no data	3

Pros & cons summary

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Threads	1	2
Chip lithography	65 nm	32 nm
Power consumption (TDP)	65 Watt	3 Watt

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