AMD® A6-6400K APU

The AMD A6-6400K APU is a desktop processor with 2 cores and 2 threads. It launched in Jun 2013. Clocks run from 3.9 GHz base to 4.1 GHz boost. It uses the FM2 socket. Rated TDP is 65 W.

The AMD A6-6400K APU scores 1,440 in single-core performance and 1,495 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 1,467 for overall performance, 2,988 for productivity performance, 3,414 for creator performance, 1,392 for engineering performance and 4,694 for gaming performance. Its multi-core throughput works out to 748 per core, 748 per thread and 23 per watt. Its computed efficiency index is 182. Its performance index is 18, so its overall performance is 82% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the AMD A6-6400K APU scores 9,668 in integer math, 2,597 in floating-point math, 25,191 in compression, 456 in cryptography, 139 in physics simulation, 620 in vector SIMD, 5 in the prime sieve and 3,140 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 84% below in integer math, 94% below in floating-point math, 89% below in compression, 96% below in cryptography, 87% below in physics simulation, 96% below in vector SIMD, 93% below in the prime sieve and 86% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The AMD A6-6400K APU has 2 physical cores and runs 2 logical threads. It does not use a hybrid performance and efficiency core layout. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 3.90 GHz and boosts up to 4.10 GHz.

The AMD A6-6400K APU is a desktop processor and belongs to the AMD AMD family. It launched in Jun 2013.

The AMD A6-6400K APU has 160 KB of L1 cache and 2 MB of L2 cache. That adds up to about 2.2 MB of cache, or 1.08 MB per core.

The AMD A6-6400K APU has a 2-level cache hierarchy: L1 at 160 KB and L2 at 2 MB. L2 is the largest level and makes up about 93% of the cache listed here.

The AMD A6-6400K APU includes integrated graphics (HD 8470D) and clocks the graphics up to 0.80 GHz.

The AMD A6-6400K APU uses the FM2 socket.

The AMD A6-6400K APU has a rated TDP of 65 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

Feex has recorded 40% of the specifications it tracks for the AMD A6-6400K APU. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L2 Cache (per Core) and L4 Cache. Memory Support: Max Memory, Memory Channels, Memory Bandwidth, Memory Types, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: Graphics Base Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.

Processors that use the same FM2 socket as the AMD A6-6400K APU and have the closest multi-core scores in the Feex database include AMD A10-6790B APU, AMD A6-5400B APU, AMD A4-6320 APU, AMD A4-7300 APU and AMD A4-6300 APU.