AMD Ryzen 9 5900 vs AMD A8-4500M
Last updated:
CPU comparison with benchmarks
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| AMD Ryzen 9 5900 | AMD A8-4500M | |
CPU comparisonAMD Ryzen 9 5900 or AMD A8-4500M - 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 Ryzen 9 5900 has 12 cores with 24 threads and clocks with a maximum frequency of 4.70 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 5900 was released in Q2/2021. The AMD A8-4500M has 4 cores with 4 threads and clocks with a maximum frequency of 2.80 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD A8-4500M was released in Q2/2012. |
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| AMD Ryzen 9 (40) | Family | AMD A (112) |
| AMD Ryzen 5000 (14) | CPU group | AMD A8-4000M (2) |
| 4 | Generation | 2 |
| Vermeer (Zen 3) | Architecture | Trinity (Piledriver) |
| Desktop / Server | Segment | Mobile |
| AMD Ryzen 9 3900 | Predecessor | -- |
| AMD Ryzen 9 7900 | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 5900 has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the AMD Ryzen 9 5900 is 3.00 GHz (4.70 GHz) while the AMD A8-4500M has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD A8-4500M is at 1.90 GHz (2.80 GHz). |
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| AMD Ryzen 9 5900 | Characteristic | AMD A8-4500M |
| 12 | Cores | 4 |
| 24 | Threads | 4 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| Yes | Overclocking ? | No |
| 3.00 GHz | Frequency | 1.90 GHz |
| 4.70 GHz | Turbo Frequency (1 Core) | 2.80 GHz |
| 4.10 GHz | Turbo Frequency (All Cores) | 2.80 GHz |
Integrated graphics (iGPU)The AMD Ryzen 9 5900 or AMD A8-4500M 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 HD 7640G |
| GPU frequency | 0.50 GHz | |
| -- | GPU (Turbo) | 0.69 GHz |
| -- | GPU Generation | 4 |
| Technology | 32 nm | |
| Max. displays | 2 | |
| -- | Compute units | 4 |
| -- | Shader | 256 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 2 GB |
| -- | DirectX Version | 11 |
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 HD 7640G |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| No | Codec h264 | Decode |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| No | Codec AVC | Decode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 9 5900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD A8-4500M supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 25.6 GB/s. |
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| AMD Ryzen 9 5900 | Characteristic | AMD A8-4500M |
| DDR4-3200 | Memory | DDR3-1600 |
| 128 GB | Max. Memory | |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 51.2 GB/s | Max. Bandwidth | 25.6 GB/s |
| Yes | ECC | No |
| 6.00 MB | L2 Cache | -- |
| 64.00 MB | L3 Cache | 4.00 MB |
| 4.0 | PCIe version | -- |
| 20 | PCIe lanes | -- |
| 39.4 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 5900 is 65 W, while the AMD A8-4500M has a TDP of 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD Ryzen 9 5900 | Characteristic | AMD A8-4500M |
| 65 W | TDP (PL1 / PBP) | 35 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 95 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 9 5900 is manufactured in 7 nm and has 70.00 MB cache. The AMD A8-4500M is manufactured in 32 nm and has a 4.00 MB cache. |
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| AMD Ryzen 9 5900 | Characteristic | AMD A8-4500M |
| 7 nm | Technology | 32 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 |
| AM4 (PGA 1331) | Socket | FS1r2 |
| AMD-V, SVM | Virtualization | AMD-V |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | |
| Q2/2021 | Release date | Q2/2012 |
| -- | Release price | -- |
| show more data | show more data | |
12C 24T @ 3.00 GHz (4.70 GHz) buy now on Amazon and save!
4C 4T @ 1.90 GHz (2.80 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 3 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 Ryzen 9 5900
12C 24T @ 4.70 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
12C 24T @ 4.10 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
12C 24T @ 4.10 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
12C 24T @ 3.00 GHz |
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AMD A8-4500M
4C 4T @ 1.90 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 Ryzen 9 5900
12C 24T @ 4.70 GHz |
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AMD A8-4500M
4C 4T @ 2.80 GHz |
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Cinebench R23 (Multi-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 multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD Ryzen 9 5900
12C 24T @ 4.10 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
12C 24T @ 4.70 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
12C 24T @ 4.10 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
12C 24T @ 4.70 GHz |
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AMD A8-4500M
4C 4T @ 2.80 GHz |
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Cinebench R20 (Multi-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 multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD Ryzen 9 5900
12C 24T @ 4.10 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
@ 0.00 GHz |
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AMD A8-4500M
AMD Radeon HD 7640G @ 0.69 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 Ryzen 9 5900
12C 24T @ 4.70 GHz |
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AMD A8-4500M
4C 4T @ 2.80 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 Ryzen 9 5900
12C 24T @ 4.10 GHz |
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AMD A8-4500M
4C 4T @ 2.80 GHz |
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Devices using this processor |
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| AMD Ryzen 9 5900 | AMD A8-4500M |
| Unknown | Unknown |
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