AMD EPYC 7773X vs AMD A9-9420
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CPU comparison with benchmarks
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| AMD EPYC 7773X | AMD A9-9420 | |
CPU comparisonAMD EPYC 7773X or AMD A9-9420 - 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 EPYC 7773X has 64 cores with 128 threads and clocks with a maximum frequency of 3.50 GHz. Up to 4096 GB of memory is supported in 8 memory channels. The AMD EPYC 7773X was released in Q2/2022. The AMD A9-9420 has 2 cores with 2 threads and clocks with a maximum frequency of 3.60 GHz. The CPU supports up to 8 GB of memory in 1 memory channels. The AMD A9-9420 was released in Q2/2017. |
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| AMD EPYC (129) | Family | AMD A (112) |
| AMD EPYC 7003 (29) | CPU group | AMD A9-9000 (4) |
| 3 | Generation | 4 |
| Milan (Zen 3) | Architecture | Stoney Ridge (Excavator) |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 7773X has 64 CPU cores and can calculate 128 threads in parallel. The clock frequency of the AMD EPYC 7773X is 2.20 GHz (3.50 GHz) while the AMD A9-9420 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD A9-9420 is at 3.00 GHz (3.60 GHz). |
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| AMD EPYC 7773X | Characteristic | AMD A9-9420 |
| 64 | Cores | 2 |
| 128 | Threads | 2 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 2.20 GHz | Frequency | 3.00 GHz |
| 3.50 GHz | Turbo Frequency (1 Core) | 3.60 GHz |
| -- | Turbo Frequency (All Cores) | 3.00 GHz |
Internal GraphicsThe AMD EPYC 7773X or AMD A9-9420 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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| no iGPU | GPU | AMD Radeon R5 (Stoney Ridge) |
| GPU frequency | 0.85 GHz | |
| -- | GPU (Turbo) | -- |
| -- | GPU Generation | 7 |
| Technology | 28 nm | |
| Max. displays | 3 | |
| -- | Compute units | 3 |
| -- | Shader | 192 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 2 GB |
| -- | DirectX Version | 12 |
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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| no iGPU | GPU | AMD Radeon R5 (Stoney Ridge) |
| No | Codec h265 / HEVC (8 bit) | Decode |
| No | Codec h265 / HEVC (10 bit) | Decode |
| No | Codec h264 | Decode |
| No | Codec VP9 | Decode |
| No | Codec VP8 | Decode |
| No | Codec AV1 | No |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD EPYC 7773X can use up to 4096 GB of memory in 8 memory channels. The maximum memory bandwidth is 204.8 GB/s. The AMD A9-9420 supports up to 8 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 17.1 GB/s. |
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| AMD EPYC 7773X | Characteristic | AMD A9-9420 |
| DDR4-3200 | Memory | DDR4-2133 |
| 4096 GB | Max. Memory | 8 GB |
| 8 (Octa Channel) | Memory channels | 1 (Single Channel) |
| 204.8 GB/s | Max. Bandwidth | 17.1 GB/s |
| Yes | ECC | No |
| 32.00 MB | L2 Cache | -- |
| 768.00 MB | L3 Cache | 2.00 MB |
| 4.0 | PCIe version | 3.0 |
| 128 | PCIe lanes | 8 |
| 252.0 GB/s | PCIe Bandwidth | 7.9 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC 7773X is 280 W, while the AMD A9-9420 has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD EPYC 7773X | Characteristic | AMD A9-9420 |
| 280 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | 25 W |
| 225 W | TDP down | 10 W |
| -- | Tjunction max. | 90 °C |
Technical detailsThe AMD EPYC 7773X is manufactured in 7 nm and has 800.00 MB cache. The AMD A9-9420 is manufactured in 28 nm and has a 2.00 MB cache. |
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| AMD EPYC 7773X | Characteristic | AMD A9-9420 |
| 7 nm | Technology | 28 nm |
| Chiplet | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
| SP3 | Socket | FP4 |
| AMD-V, SVM | Virtualization | AMD-V |
| Yes | AES-NI | Yes |
| Windows 10, Linux | Operating systems | |
| Q2/2022 | Release date | Q2/2017 |
| 8800 $ | Release price | -- |
| show more data | show more data | |
64C 128T @ 2.20 GHz (3.50 GHz) buy now on Amazon and save!
2C 2T @ 3.00 GHz (3.60 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 EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD A9-9420
2C 2T @ 3.60 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 EPYC 7773X
64C 128T @ 2.20 GHz |
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AMD A9-9420
2C 2T @ 3.00 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 EPYC 7773X
64C 128T @ 2.20 GHz |
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AMD A9-9420
2C 2T @ 3.00 GHz |
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Cinebench 2024 (Single-Core)
The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
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AMD EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD A9-9420
2C 2T @ 3.60 GHz |
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Cinebench 2024 (Multi-Core)
The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
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AMD EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD A9-9420
2C 2T @ 3.60 GHz |
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Cinebench R23 (Single-Core)
Cinebench R23 is the successor of Cinebench R20 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 EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD A9-9420
2C 2T @ 3.60 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 EPYC 7773X
@ 0.00 GHz |
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AMD A9-9420
AMD Radeon R5 (Stoney Ridge) @ 0.85 GHz |
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CPU-Z Benchmark 17 (Multi-Core)
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
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AMD EPYC 7773X
64C 128T @ 2.20 GHz |
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AMD A9-9420
2C 2T @ 3.00 GHz |
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Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 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 EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD A9-9420
2C 2T @ 3.60 GHz |
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Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD EPYC 7773X
64C 128T @ 2.20 GHz |
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AMD A9-9420
2C 2T @ 3.00 GHz |
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Devices using this processor |
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| AMD EPYC 7773X | AMD A9-9420 |
| Unknown | Unknown |
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