EPYC 9654 vs A6-6400K
Aggregate performance score
EPYC 9654 outperforms A6-6400K by a whopping 7860% based on our aggregate benchmark results.
Primary details
Comparing A6-6400K and EPYC 9654 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2498 | 5 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.27 |
| Market segment | Desktop processor | Server |
| Series | AMD A-Series (Desktop) | AMD EPYC |
| Power efficiency | 1.37 | 19.76 |
| Architecture codename | Richland (2013−2014) | Genoa (2022−2023) |
| Release date | 1 June 2013 (11 years ago) | 10 November 2022 (1 year ago) |
| Launch price (MSRP) | no data | $11,805 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
A6-6400K and EPYC 9654 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) | 96 |
| Threads | 2 | 192 |
| Base clock speed | 3.9 GHz | 2.4 GHz |
| Boost clock speed | 4.1 GHz | 2.4 GHz |
| Multiplier | no data | 24 |
| L1 cache | 96 KB | 6 MB |
| L2 cache | 1024 KB | 96 MB |
| L3 cache | 0 KB | 384 MB (shared) |
| Chip lithography | 32 nm | 5 nm, 6 nm |
| Die size | 246 mm2 | 12x 72 mm2 |
| Maximum core temperature | 70 °C | no data |
| Maximum case temperature (TCase) | 70 °C | no data |
| Number of transistors | 1,178 million | 78,840 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on A6-6400K and EPYC 9654 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 | 2 |
| Socket | FM2 | SP5 |
| Power consumption (TDP) | 65 Watt | 360 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6-6400K and EPYC 9654. 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 | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A6-6400K and EPYC 9654 are enumerated here.
| AMD-V | + | + |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-6400K and EPYC 9654. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR5-4800 |
| Maximum memory size | no data | 6 TiB |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | no data | 460.8 GB/s |
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 EPYC 9654 integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A6-6400K and EPYC 9654 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 11 | no data |
Peripherals
Specifications and connection of peripherals supported by A6-6400K and EPYC 9654.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 128 |
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.
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.
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.
Pros & cons summary
| Performance score | 0.98 | 78.01 |
| Recency | 1 June 2013 | 10 November 2022 |
| Physical cores | 2 | 96 |
| Threads | 2 | 192 |
| Chip lithography | 32 nm | 5 nm |
| Power consumption (TDP) | 65 Watt | 360 Watt |
A6-6400K has 453.8% lower power consumption.
EPYC 9654, on the other hand, has a 7860.2% higher aggregate performance score, an age advantage of 9 years, 4700% more physical cores and 9500% more threads, and a 540% more advanced lithography process.
The EPYC 9654 is our recommended choice as it beats the A6-6400K in performance tests.
Note that A6-6400K is a desktop processor while EPYC 9654 is a server/workstation one.
Should you still have questions on choice between A6-6400K and EPYC 9654, ask them in Comments section, and we shall answer.
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