A4-9120C vs A9-9420

Place in the ranking	2502	2837
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	AMD Bristol Ridge	AMD Bristol Ridge
Power efficiency	5.96	8.51
Architecture codename	Stoney Ridge (2016−2019)	Stoney Ridge (2016−2019)
Release date	31 May 2016 (8 years ago)	6 January 2019 (5 years ago)

Detailed specifications

A9-9420 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	2 (Dual-core)	2 (Dual-core)
Threads	2	2
Base clock speed	3 GHz	no data
Boost clock speed	3.6 GHz	1.6 GHz
Multiplier	no data	16
L1 cache	160 KB	160 KB
L2 cache	1 MB (shared)	1 MB
Chip lithography	28 nm	28 nm
Die size	125 mm²	124.5 mm²
Maximum core temperature	90 °C	no data
Maximum case temperature (TCase)	74 °C	no data
Number of transistors	1,200 million	1200 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on A9-9420 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	FT4	BGA
Power consumption (TDP)	15 Watt	6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A9-9420 and A4-9120C. You'll probably need this information if you require some particular technology.

Instruction set extensions	Virtualization,	Virtualization,
AES-NI	+	+
FMA	+	-
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by A9-9420 and A4-9120C are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by A9-9420 and A4-9120C. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4
Maximum memory bandwidth	no data	14.936 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Radeon R5

AMD Radeon R4 (Stoney Ridge)

Peripherals

Specifications and connection of peripherals supported by A9-9420 and A4-9120C.

PCIe version	3.0	no data
PCI Express lanes	8	no data

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

A9-9420 0.98
+75%

A4-9120C 0.56

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

A9-9420 1498
+76.2%

A4-9120C 850