FX-4100 vs FX-8120

Place in the ranking	1395	2084
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	3.14	1.64
Architecture codename	Zambezi (2011−2012)	Zambezi (2011−2012)
Release date	12 October 2011 (13 years ago)	12 October 2011 (13 years ago)

Detailed specifications

FX-8120 and FX-4100 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	8 (Octa-Core)	4 (Quad-Core)
Threads	8	4
Base clock speed	3.1 GHz	3.6 GHz
Boost clock speed	4 GHz	3.8 GHz
L1 cache	384 KB	192 KB
L2 cache	8192 KB	4096 KB
L3 cache	8192 KB	8192 KB
Chip lithography	32 nm	32 nm
Die size	315 mm²	315 mm²
Maximum core temperature	61 °C	71 °C
Number of transistors	1,200 million	1,200 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	+
P0 Vcore voltage	Min: 1.0125 V - Max: 1.4125 V	Min: 1.1 V - Max: 1.4125 V

Compatibility

Information on FX-8120 and FX-4100 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+	AM3+
Power consumption (TDP)	125 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-8120 and FX-4100. 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-8120 and FX-4100 are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-8120 and FX-4100. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

Peripherals

Specifications and connection of peripherals supported by FX-8120 and FX-4100.

PCIe version

n/a

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-8120 4.15
+152%

FX-4100 1.65

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-8120 6594
+152%

FX-4100 2617

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

FX-8120 412
+4%

FX-4100 396

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

FX-8120 1524
+51.9%

FX-4100 1003