A4-9120C vs Celeron 420

Primary details

Comparing Celeron 420 and A4-9120C processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	2840
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	AMD Bristol Ridge
Power efficiency	no data	8.52
Architecture codename	Conroe-L (2007−2008)	Stoney Ridge (2016−2019)
Release date	June 2007 (17 years ago)	6 January 2019 (5 years ago)
Launch price (MSRP)	$23	no data

Detailed specifications

Celeron 420 and A4-9120C 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	1	2
Base clock speed	1.6 GHz	no data
Boost clock speed	1.6 GHz	1.6 GHz
Multiplier	no data	16
L1 cache	64 KB	160 KB
L2 cache	512 KB	1 MB
L3 cache	0 KB	no data
Chip lithography	65 nm	28 nm
Die size	77 mm2	124.5 mm2
Maximum case temperature (TCase)	60 °C	no data
Number of transistors	105 million	1200 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1V-1.3375V	no data

Compatibility

Information on Celeron 420 and A4-9120C 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	no data
Socket	LGA775	BGA
Power consumption (TDP)	35 Watt	6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 420 and A4-9120C. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Virtualization,
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Celeron 420 and A4-9120C 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 Celeron 420 and A4-9120C are enumerated here.

AMD-V	-	+
VT-d	-	no data
VT-x	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 420 and A4-9120C. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4
Maximum memory bandwidth	no data	14.936 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon R4 (Stoney Ridge)

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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Physical cores	1	2
Threads	1	2
Chip lithography	65 nm	28 nm
Power consumption (TDP)	35 Watt	6 Watt

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Should you still have questions on choice between Celeron 420 and A4-9120C, ask them in Comments section, and we shall answer.

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