Athlon X4 840 vs FX-4320

Place in the ranking	1927	1874
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Series	no data	4x Athlon
Power efficiency	1.97	3.04
Architecture codename	Vishera (2012−2015)	Kaveri (2014−2015)
Release date	23 October 2012 (12 years ago)	August 2014 (10 years ago)

Detailed specifications

FX-4320 and Athlon X4 840 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)	4 (Quad-Core)
Threads	4	4
Base clock speed	4 GHz	3.1 GHz
Boost clock speed	4.1 GHz	3.8 GHz
L1 cache	192 KB	256K
L2 cache	4096 KB	4 MB
L3 cache	4096 KB	no data
Chip lithography	32 nm	28 nm
Die size	315 mm²	245 mm²
Maximum core temperature	71 °C	no data
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	1,200 million	2,411 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	+

Compatibility

Information on FX-4320 and Athlon X4 840 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+	Socket FM2+
Power consumption (TDP)	95 Watt	65 watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-4320 and Athlon X4 840. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by FX-4320 and Athlon X4 840 are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-4320 and Athlon X4 840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3-1866

DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by FX-4320 and Athlon X4 840.

PCIe version	Not Listed	3.0
PCI Express lanes	no data	16

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 1.98

Athlon X4 840 2.09
+5.6%

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

Athlon X4 840 3325
+5.6%

Gaming performance

Pros & cons summary

Performance score	1.98	2.09
Recency	23 October 2012	on August 2014
Chip lithography	32 nm	28 nm
Power consumption (TDP)	95 Watt	65 Watt

Athlon X4 840 has a 5.6% higher aggregate performance score, an age advantage of 1 year, a 14.3% more advanced lithography process, and 46.2% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between FX-4320 and Athlon X4 840.

Should you still have questions on choice between FX-4320 and Athlon X4 840, ask them in Comments section, and we shall answer.