Phenom II X2 B57 vs FX-8120

Place in the ranking	1382	2607
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	3.14	0.93
Architecture codename	Zambezi (2011−2012)	Callisto (2009−2010)
Release date	12 October 2011 (13 years ago)	11 May 2010 (14 years ago)

Detailed specifications

FX-8120 and Phenom II X2 B57 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)	2 (Dual-core)
Threads	8	2
Base clock speed	3.1 GHz	3.2 GHz
Boost clock speed	4 GHz	3.2 GHz
L1 cache	384 KB	128 KB (per core)
L2 cache	8192 KB	512 KB (per core)
L3 cache	8192 KB	6 MB (shared)
Chip lithography	32 nm	45 nm
Die size	315 mm²	258 mm²
Maximum core temperature	61 °C	no data
Number of transistors	1,200 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-
P0 Vcore voltage	Min: 1.0125 V - Max: 1.4125 V	no data

Compatibility

Information on FX-8120 and Phenom II X2 B57 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	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-8120 and Phenom II X2 B57. 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 Phenom II X2 B57 are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-8120 and Phenom II X2 B57. 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 Phenom II X2 B57.

PCIe version

n/a

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-8120 4.15
+425%

Phenom II X2 B57 0.79

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
+423%

Phenom II X2 B57 1260

Gaming performance

Pros & cons summary

Performance score	4.15	0.79
Recency	12 October 2011	11 May 2010
Physical cores	8	2
Threads	8	2
Chip lithography	32 nm	45 nm
Power consumption (TDP)	125 Watt	80 Watt

FX-8120 has a 425.3% higher aggregate performance score, an age advantage of 1 year, 300% more physical cores and 300% more threads, and a 40.6% more advanced lithography process.

Phenom II X2 B57, on the other hand, has 56.3% lower power consumption.

The FX-8120 is our recommended choice as it beats the Phenom II X2 B57 in performance tests.

Should you still have questions on choice between FX-8120 and Phenom II X2 B57, ask them in Comments section, and we shall answer.