A9-9420 vs A4-5100

Place in the ranking	2559	2502
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	AMD A-Series	AMD Bristol Ridge
Power efficiency	5.35	5.96
Architecture codename	Kabini (2013−2014)	Stoney Ridge (2016−2019)
Release date	4 November 2013 (11 years ago)	31 May 2016 (8 years ago)

Detailed specifications

A4-5100 and A9-9420 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	4 (Quad-Core)	2 (Dual-core)
Threads	4	2
Base clock speed	no data	3 GHz
Boost clock speed	1.55 GHz	3.6 GHz
L1 cache	no data	160 KB
L2 cache	2048 KB	1 MB (shared)
Chip lithography	28 nm	28 nm
Die size	107 mm²	125 mm²
Maximum core temperature	no data	90 °C
Maximum case temperature (TCase)	90 °C	74 °C
Number of transistors	no data	1,200 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on A4-5100 and A9-9420 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	FT3	FT4
Power consumption (TDP)	15 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A4-5100 and A9-9420. You'll probably need this information if you require some particular technology.

Instruction set extensions	86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX	Virtualization,
AES-NI	+	+
FMA	FMA4	+
AVX	+	+
PowerNow	+	-
PowerGating	+	-
VirusProtect	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by A4-5100 and A9-9420 are enumerated here.

AMD-V	+	+
IOMMU 2.0	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A4-5100 and A9-9420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Max memory channels	1	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon HD 8330	Radeon R5
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A4-5100 and A9-9420 integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A4-5100 and A9-9420 integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	+	-

Peripherals

Specifications and connection of peripherals supported by A4-5100 and A9-9420.

PCIe version	2.0	3.0
PCI Express lanes	8	8

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.

A4-5100 0.88

A9-9420 0.98
+11.4%

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.

A4-5100 1346

A9-9420 1498
+11.3%