Phenom II X2 B55 vs A4-4300M

Primary details

Comparing A4-4300M and Phenom II X2 B55 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2659	2549
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	2.02
Market segment	Laptop	Desktop processor
Series	AMD A-Series	no data
Architecture codename	Trinity (2012−2013)	Callisto (2009−2010)
Release date	15 May 2012 (12 years ago)	October 2009 (14 years ago)
Launch price (MSRP)	no data	$48
Current price	$61	$28 (0.6x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

A4-4300M and Phenom II X2 B55 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	2 (Dual-core)	2 (Dual-core)
Threads	2	2
Base clock speed	2.5 GHz	no data
Boost clock speed	3 GHz	3 GHz
L1 cache	96 KB	128 KB (per core)
L2 cache	1 MB (shared)	512 KB (per core)
L3 cache	0 KB	6 MB (shared)
Chip lithography	32 nm	45 nm
Die size	246 mm2	258 mm2
Number of transistors	1,303 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on A4-4300M and Phenom II X2 B55 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	FS1r2	AM3
Power consumption (TDP)	35 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A4-4300M and Phenom II X2 B55. You'll probably need this information if you require some particular technology.

Instruction set extensions	86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA	no data
AES-NI	+	no data
FMA	+	no data
AVX	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by A4-4300M and Phenom II X2 B55 are enumerated here.

AMD-V

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by A4-4300M and Phenom II X2 B55. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

unknown

DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon HD 7420G

no data

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.

Phenom II X2 B55 outperforms A4-4300M by 17% based on our aggregate benchmark results.

---

Pros & cons summary

---

Performance score	0.65	0.76
Chip lithography	32 nm	45 nm
Power consumption (TDP)	35 Watt	80 Watt

---

Should you still have questions on choice between A4-4300M and Phenom II X2 B55, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---