A8-3870K vs A4-3305M

Place in the ranking	2917	2172
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	AMD A-Series	no data
Power efficiency	1.26	1.38
Architecture codename	Llano (2011−2012)	Llano (2011−2012)
Release date	14 June 2011 (13 years ago)	20 December 2011 (12 years ago)

Detailed specifications

A4-3305M and A8-3870K 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)	4 (Quad-Core)
Threads	2	4
Base clock speed	1.9 GHz	3 GHz
Boost clock speed	2.5 GHz	3 GHz
L1 cache	128K (per core)	128 KB (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	0 KB	0 KB
Chip lithography	32 nm	32 nm
Die size	228 mm²	228 mm²
Number of transistors	1,178 million	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	+

Compatibility

Information on A4-3305M and A8-3870K 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	FS1	FM1
Power consumption (TDP)	35 Watt	100 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A4-3305M and A8-3870K. You'll probably need this information if you require some particular technology.

Instruction set extensions

3DNow!, MMX, SSE, SSE2, SSE3, SSE4a, Radeon HD 6480G

no data

Virtualization technologies

Virtual machine speed-up technologies supported by A4-3305M and A8-3870K are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by A4-3305M and A8-3870K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare

AMD Radeon HD 6480G (593 MHz)

AMD Radeon HD 6550D

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.

A4-3305M 0.47

A8-3870K 1.47
+213%

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.

A4-3305M 751

A8-3870K 2328
+210%

Gaming performance

Pros & cons summary

Performance score	0.47	1.47
Integrated graphics card	0.66	1.04
Recency	14 June 2011	20 December 2011
Physical cores	2	4
Threads	2	4
Power consumption (TDP)	35 Watt	100 Watt

A4-3305M has 185.7% lower power consumption.

A8-3870K, on the other hand, has a 212.8% higher aggregate performance score, 57.6% faster integrated GPU, an age advantage of 6 months, and 100% more physical cores and 100% more threads.

The A8-3870K is our recommended choice as it beats the A4-3305M in performance tests.

Be aware that A4-3305M is a notebook processor while A8-3870K is a desktop one.

Should you still have questions on choice between A4-3305M and A8-3870K, ask them in Comments section, and we shall answer.