A6-6420K vs FX-4320

Place in the ranking	1925	2460
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	1.97	1.45
Architecture codename	Vishera (2012−2015)	Richland (2013−2014)
Release date	23 October 2012 (12 years ago)	January 2014 (10 years ago)

Detailed specifications

FX-4320 and A6-6420K 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	4 GHz	4 GHz
Boost clock speed	4.1 GHz	4.2 GHz
L1 cache	192 KB	96 KB
L2 cache	4096 KB	1024 KB
L3 cache	4096 KB	no data
Chip lithography	32 nm	32 nm
Die size	315 mm²	246 mm²
Maximum core temperature	71 °C	70 °C
Maximum case temperature (TCase)	no data	70 °C
Number of transistors	1,200 million	1,303 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	-	+

Compatibility

Information on FX-4320 and A6-6420K 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	AM3+	FM2
Power consumption (TDP)	95 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-4320 and A6-6420K. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	+
AVX	+	+
PowerNow	-	+
PowerGating	-	+
VirusProtect	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by FX-4320 and A6-6420K are enumerated here.

AMD-V	+	+
IOMMU 2.0	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-4320 and A6-6420K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR3-1866
Max memory channels	no data	2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	On certain motherboards (Chipset feature)	AMD Radeon HD 8470D
Number of pipelines	no data	192
Enduro	-	+
Switchable graphics	-	+
UVD	-	+

Graphics interfaces

Available interfaces and connections of FX-4320 and A6-6420K integrated GPUs.

DisplayPort	-	+
HDMI	-	+

Graphics API support

APIs supported by FX-4320 and A6-6420K integrated GPUs, sometimes API versions are included.

DirectX

no data

DirectX® 11

Peripherals

Specifications and connection of peripherals supported by FX-4320 and A6-6420K.

PCIe version

Not Listed

2.0

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.

FX-4320 1.99
+99%

A6-6420K 1.00

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.

FX-4320 3150
+99.9%

A6-6420K 1576