A6-3400M vs A6-6400K

Place in the ranking	2503	2653
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	AMD A-Series (Desktop)	AMD A-Series
Power efficiency	1.38	2.03
Architecture codename	Richland (2013−2014)	Llano (2011−2012)
Release date	1 June 2013 (11 years ago)	14 June 2011 (13 years ago)

Detailed specifications

A6-6400K and A6-3400M 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	3.9 GHz	1.4 GHz
Boost clock speed	4.1 GHz	2.3 GHz
L1 cache	96 KB	128 KB (per core)
L2 cache	1024 KB	1 MB (per core)
L3 cache	0 KB	0 KB
Chip lithography	32 nm	32 nm
Die size	246 mm²	228 mm²
Maximum core temperature	70 °C	no data
Maximum case temperature (TCase)	70 °C	no data
Number of transistors	1,178 million	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on A6-6400K and A6-3400M 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	FM2	FS1
Power consumption (TDP)	65 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A6-6400K and A6-3400M. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, SSE1-4a, AES, ABM, AVX, BMI1, AMD64, VT, EVP, Turbo Core 3.0	3DNow!, MMX, SSE, SSE2, SSE3, SSE4a, Radeon HD 6480G
AES-NI	+	-
FMA	FMA4	-
AVX	+	-
PowerNow	+	-
PowerGating	+	-
VirusProtect	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by A6-6400K and A6-3400M are enumerated here.

AMD-V	+	+
IOMMU 2.0	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A6-6400K and A6-3400M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR3
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	AMD Radeon HD 8470D	AMD Radeon HD 6520G
Number of pipelines	192	no data
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A6-6400K and A6-3400M integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A6-6400K and A6-3400M integrated GPUs, sometimes API versions are included.

DirectX

DirectX® 11

no data

Peripherals

Specifications and connection of peripherals supported by A6-6400K and A6-3400M.

PCIe version

2.0

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.

A6-6400K 0.95
+26.7%

A6-3400M 0.75

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.

A6-6400K 1504
+26.3%

A6-3400M 1191

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.

A6-6400K 410
+94.3%

A6-3400M 211

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.

A6-6400K 576
+10.3%

A6-3400M 522

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

A6-6400K 3068
+103%

A6-3400M 1512

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

A6-6400K 5079
+3.2%

A6-3400M 4922

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

A6-6400K 2654
+24.3%

A6-3400M 2135

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

A6-6400K 2

A6-3400M 2
+7.2%

Gaming performance

Pros & cons summary

Performance score	0.95	0.75
Integrated graphics card	0.97	0.78
Recency	1 June 2013	14 June 2011
Physical cores	2	4
Threads	2	4
Power consumption (TDP)	65 Watt	35 Watt