A6-7400K vs A6-6400B
Aggregate performance score
A6-7400K outperforms A6-6400B by a minimal 1% based on our aggregate benchmark results.
Primary details
Comparing A6-6400B and A6-7400K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2460 | 2454 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 1.49 | 1.50 |
| Architecture codename | Richland (2013−2014) | Kaveri (2014−2015) |
| Release date | 1 June 2013 (11 years ago) | 31 July 2014 (10 years ago) |
Detailed specifications
A6-6400B and A6-7400K 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 | 3.9 GHz | 3.5 GHz |
| Boost clock speed | 4.1 GHz | 3.9 GHz |
| L1 cache | 96K | 128 KB |
| L2 cache | 1 MB (shared) | 1024 KB |
| Chip lithography | 32 nm | 28 nm |
| Die size | 246 mm2 | 245 mm2 |
| Maximum core temperature | no data | 70 °C |
| Maximum case temperature (TCase) | 70 °C | 72 °C |
| Number of transistors | 1,303 million | 2,411 million |
| 64 bit support | + | + |
| Unlocked multiplier | + | + |
Compatibility
Information on A6-6400B and A6-7400K 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 | FM2+ |
| Power consumption (TDP) | 65 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6-6400B and A6-7400K. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | + |
| AVX | + | + |
| FRTC | - | + |
| FreeSync | - | + |
| TrueAudio | - | + |
| PowerNow | + | + |
| PowerGating | - | + |
| Out-of-band client management | - | + |
| VirusProtect | - | + |
| HSA | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A6-6400B and A6-7400K are enumerated here.
| AMD-V | + | + |
| IOMMU 2.0 | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-6400B and A6-7400K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR3-1866 |
| Max memory channels | no data | 2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon HD 8470D | AMD Radeon R5 Graphics |
| iGPU core count | no data | 4 |
| จำนวนพาธไลน์ | no data | 256 |
| Enduro | - | + |
| Switchable graphics | - | + |
| UVD | - | + |
| VCE | - | + |
Graphics interfaces
Available interfaces and connections of A6-6400B and A6-7400K integrated GPUs.
| DisplayPort | - | + |
| HDMI | - | + |
Graphics API support
APIs supported by A6-6400B and A6-7400K integrated GPUs, sometimes API versions are included.
| DirectX | no data | DirectX® 12 |
| Vulkan | - | + |
Peripherals
Specifications and connection of peripherals supported by A6-6400B and A6-7400K.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | no data | 16 |
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.
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.
Pros & cons summary
| Performance score | 1.02 | 1.03 |
| Recency | 1 June 2013 | 31 July 2014 |
| Chip lithography | 32 nm | 28 nm |
A6-7400K has a 1% higher aggregate performance score, an age advantage of 1 year, and a 14.3% more advanced lithography process.
Given the minimal performance differences, no clear winner can be declared between A6-6400B and A6-7400K.
Should you still have questions on choice between A6-6400B and A6-7400K, ask them in Comments section, and we shall answer.
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