Phenom II X2 X640 BE vs FX-8120

Place in the ranking	1384	2455
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	2x AMD Phenom II
Power efficiency	3.14	2.12
Architecture codename	Zambezi (2011−2012)	Champlain (2010−2011)
Release date	12 October 2011 (13 years ago)	12 May 2011 (13 years ago)

Detailed specifications

FX-8120 and Phenom II X2 X640 BE 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	no data
Boost clock speed	4 GHz	3.2 GHz
Bus rate	no data	3600 MHz
L1 cache	384 KB	256 KB
L2 cache	8192 KB	2 MB
L3 cache	8192 KB	no data
Chip lithography	32 nm	45 nm
Die size	315 mm²	no data
Maximum core temperature	61 °C	no data
Number of transistors	1,200 million	no data
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 X640 BE 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	no data
Socket	AM3+	S1
Power consumption (TDP)	125 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-8120 and Phenom II X2 X640 BE. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, 3DNow!, SSE1-3A, AMD64, Enhanced Virus Protection, Virtualization
AES-NI	+	-
FMA	+	-
AVX	+	-
VirusProtect	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by FX-8120 and Phenom II X2 X640 BE are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-8120 and Phenom II X2 X640 BE. 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 X640 BE.

PCIe version

n/a

no data

Gaming performance

Pros & cons summary

Performance score	4.15	1.01
Recency	12 October 2011	12 May 2011
Physical cores	8	2
Threads	8	2
Chip lithography	32 nm	45 nm
Power consumption (TDP)	125 Watt	45 Watt

FX-8120 has a 310.9% higher aggregate performance score, an age advantage of 5 months, 300% more physical cores and 300% more threads, and a 40.6% more advanced lithography process.

Phenom II X2 X640 BE, on the other hand, has 177.8% lower power consumption.

The FX-8120 is our recommended choice as it beats the Phenom II X2 X640 BE in performance tests.

Note that FX-8120 is a desktop processor while Phenom II X2 X640 BE is a notebook one.

Should you still have questions on choice between FX-8120 and Phenom II X2 X640 BE, ask them in Comments section, and we shall answer.