Athlon II X4 651K vs A6-6400K
Primary details
Comparing A6-6400K and Athlon II X4 651K processor market type (desktop or notebook), architecture, sales start time and price.
Place in the ranking | 2495 | not rated |
Place by popularity | not in top-100 | not in top-100 |
Market segment | Desktop processor | Desktop processor |
Series | AMD A-Series (Desktop) | no data |
Power efficiency | 1.37 | no data |
Architecture codename | Richland (2013−2014) | Llano (2011−2012) |
Release date | 1 June 2013 (11 years ago) | 14 November 2011 (12 years ago) |
Detailed specifications
A6-6400K and Athlon II X4 651K 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 | 3 GHz |
Boost clock speed | 4.1 GHz | 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 Athlon II X4 651K 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 | FM1 |
Power consumption (TDP) | 65 Watt | 100 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6-6400K and Athlon II X4 651K. 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 | no data |
AES-NI | + | - |
FMA | FMA4 | - |
AVX | + | - |
PowerNow | + | - |
PowerGating | + | - |
VirusProtect | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by A6-6400K and Athlon II X4 651K are enumerated here.
AMD-V | + | + |
IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-6400K and Athlon II X4 651K. 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 | AMD Radeon HD 8470D | no data |
Number of pipelines | 192 | no data |
Enduro | + | - |
Switchable graphics | + | - |
UVD | + | - |
VCE | + | - |
Graphics interfaces
Available interfaces and connections of A6-6400K and Athlon II X4 651K integrated GPUs.
DisplayPort | + | - |
HDMI | + | - |
Graphics API support
APIs supported by A6-6400K and Athlon II X4 651K integrated GPUs, sometimes API versions are included.
DirectX | DirectX® 11 | no data |
Peripherals
Specifications and connection of peripherals supported by A6-6400K and Athlon II X4 651K.
PCIe version | 2.0 | no data |
Pros & cons summary
Recency | 1 June 2013 | 14 November 2011 |
Physical cores | 2 | 4 |
Threads | 2 | 4 |
Power consumption (TDP) | 65 Watt | 100 Watt |
A6-6400K has an age advantage of 1 year, and 53.8% lower power consumption.
Athlon II X4 651K, on the other hand, has 100% more physical cores and 100% more threads.
We couldn't decide between A6-6400K and Athlon II X4 651K. We've got no test results to judge.
Should you still have questions on choice between A6-6400K and Athlon II X4 651K, ask them in Comments section, and we shall answer.
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