Ryzen 9 7840HX vs A6-6400K
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2767 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | AMD A-Series (Desktop) | AMD Dragon Range (Zen 4, Ryzen 7045) |
| Power efficiency | 0.56 | no data |
| Designer | AMD | AMD |
| Architecture codename | Richland (2013−2014) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | 1 June 2013 (12 years ago) | 17 January 2024 (1 year ago) |
Detailed specifications
A6-6400K and Ryzen 9 7840HX 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) | 12 (Dodeca-Core) |
| Threads | 2 | 24 |
| Base clock speed | 3.9 GHz | 2.9 GHz |
| Boost clock speed | 4.1 GHz | 5.1 GHz |
| L1 cache | 96 KB | 768 KB |
| L2 cache | 1024 KB | 12 MB |
| L3 cache | 0 KB | 64 MB |
| Chip lithography | 32 nm | 5 nm |
| Die size | 246 mm2 | no data |
| Maximum core temperature | 70 °C | 100 °C |
| Maximum case temperature (TCase) | 70 °C | no data |
| Number of transistors | 1,178 million | 9900 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on A6-6400K and Ryzen 9 7840HX 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 | no data |
| Socket | FM2 | FL1 |
| Power consumption (TDP) | 65 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6-6400K and Ryzen 9 7840HX. 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 | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME |
| AES-NI | + | + |
| FMA | FMA4 | + |
| AVX | + | + |
| PowerNow | + | - |
| PowerGating | + | - |
| VirusProtect | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by A6-6400K and Ryzen 9 7840HX are enumerated here.
| AMD-V | + | - |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-6400K and Ryzen 9 7840HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR5 |
| Max memory channels | 2 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 8470D | AMD Radeon 610M (400 - 2200 MHz) |
| จำนวนพาธไลน์ | 192 | no data |
| Enduro | + | - |
| Switchable graphics | + | - |
| UVD | + | - |
| VCE | + | - |
Graphics interfaces
Available interfaces and connections of A6-6400K and Ryzen 9 7840HX integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A6-6400K and Ryzen 9 7840HX integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 11 | no data |
Peripherals
Specifications and connection of peripherals supported by A6-6400K and Ryzen 9 7840HX.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Integrated graphics card | 0.84 | 2.49 |
| Recency | 1 June 2013 | 17 January 2024 |
| Physical cores | 2 | 12 |
| Threads | 2 | 24 |
| Chip lithography | 32 nm | 5 nm |
| Power consumption (TDP) | 65 Watt | 55 Watt |
Ryzen 9 7840HX has 196.4% faster integrated GPU, an age advantage of 10 years, 500% more physical cores and 1100% more threads, a 540% more advanced lithography process, and 18.2% lower power consumption.
We couldn't decide between AMD A6-6400K and AMD Ryzen 9 7840HX. We've got no test results to judge.
Note that A6-6400K is a desktop processor while Ryzen 9 7840HX is a notebook one.
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