AMD A6-6420K vs AMD EPYC 7542
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CPU comparison with benchmarks
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| AMD A6-6420K | AMD EPYC 7542 | |
CPU comparisonAMD A6-6420K or AMD EPYC 7542 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The AMD A6-6420K has 2 cores with 2 threads and clocks with a maximum frequency of 4.20 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A6-6420K was released in Q1/2014. The AMD EPYC 7542 has 32 cores with 64 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7542 was released in Q3/2019. |
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| AMD A (112) | Family | AMD EPYC (129) |
| AMD A6-6000 (3) | CPU group | AMD EPYC 7002 (24) |
| 3 | Generation | 2 |
| Richland (Piledriver) | Architecture | Rome (Zen 2) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD A6-6420K is a 2 core processor with a clock frequency of 4.00 GHz (4.20 GHz). The AMD EPYC 7542 has 32 CPU cores with a clock frequency of 2.90 GHz (3.40 GHz). |
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| AMD A6-6420K | Characteristic | AMD EPYC 7542 |
| 2 | Cores | 32 |
| 2 | Threads | 64 |
| normal | Core architecture | normal |
| No | Hyperthreading | Yes |
| Yes | Overclocking ? | No |
| 4.00 GHz | Frequency | 2.90 GHz |
| 4.20 GHz | Turbo Frequency (1 Core) | 3.40 GHz |
| 4.20 GHz | Turbo Frequency (All Cores) | 3.20 GHz |
Integrated graphics (iGPU)The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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| AMD Radeon HD 8470D | GPU | no iGPU |
| 0.80 GHz | GPU frequency | -- |
| -- | GPU (Turbo) | -- |
| 5 | GPU Generation | -- |
| 32 nm | Technology | |
| 2 | Max. displays | |
| 3 | Compute units | -- |
| 192 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 2 GB | Max. GPU Memory | -- |
| 11.2 | DirectX Version | -- |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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| AMD Radeon HD 8470D | GPU | no iGPU |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode | Codec h264 | No |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe AMD A6-6420K supports a maximum of GB of memory in 2 memory channels. The AMD EPYC 7542 can connect up to GB of memory in 8 memory channels. |
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| AMD A6-6420K | Characteristic | AMD EPYC 7542 |
| DDR3-1866 | Memory | DDR4-3200 |
| Max. Memory | ||
| 2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
| 29.9 GB/s | Max. Bandwidth | 51.2 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | -- |
| 1.00 MB | L3 Cache | 128.00 MB |
| -- | PCIe version | 4.0 |
| -- | PCIe lanes | 128 |
| -- | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD A6-6420K has a TDP of 65 W, that of the AMD EPYC 7542 is 225 W. |
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| AMD A6-6420K | Characteristic | AMD EPYC 7542 |
| 65 W | TDP (PL1 / PBP) | 225 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe AMD A6-6420K has a 1.00 MB cache, while the AMD EPYC 7542 cache has a total of 128.00 MB. |
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| AMD A6-6420K | Characteristic | AMD EPYC 7542 |
| 32 nm | Technology | 7 nm |
| Unknown | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| FM2 | Socket | SP3 |
| AMD-V | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q1/2014 | Release date | Q3/2019 |
| 53 $ | Release price | 6000 $ |
| show more data | show more data | |
2C 2T @ 4.00 GHz (4.20 GHz) buy now on Amazon and save!
32C 64T @ 2.90 GHz (3.40 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD A6-6420K
2C 2T @ 4.20 GHz |
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AMD EPYC 7542
32C 64T @ 3.40 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD A6-6420K
2C 2T @ 4.20 GHz |
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AMD EPYC 7542
32C 64T @ 3.20 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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AMD A6-6420K
2C 2T @ 4.20 GHz |
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AMD EPYC 7542
32C 64T @ 3.20 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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AMD A6-6420K
2C 2T @ 4.20 GHz |
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AMD EPYC 7542
32C 64T @ 3.40 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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AMD A6-6420K
2C 2T @ 4.20 GHz |
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AMD EPYC 7542
32C 64T @ 3.20 GHz |
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Cinebench R20 (Single-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD A6-6420K
2C 2T @ 4.20 GHz |
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AMD EPYC 7542
32C 64T @ 3.40 GHz |
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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AMD A6-6420K
AMD Radeon HD 8470D @ 0.80 GHz |
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AMD EPYC 7542
@ 0.00 GHz |
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Devices using this processor |
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| AMD A6-6420K | AMD EPYC 7542 |
| Unknown | Unknown |
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