AMD Ryzen 5 PRO 7540U vs AMD Ryzen 5 8640U
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CPU comparison with benchmarks
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| AMD Ryzen 5 PRO 7540U | AMD Ryzen 5 8640U | |
CPU comparisonAMD Ryzen 5 PRO 7540U or AMD Ryzen 5 8640U - 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 5 PRO 7540U has 6 cores with 12 threads and clocks with a maximum frequency of 4.90 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 5 PRO 7540U was released in Q2/2023. The AMD Ryzen 5 8640U has 6 cores with 12 threads and clocks with a maximum frequency of 4.90 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 5 8640U was released in Q1/2024. |
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| AMD Ryzen 5 PRO (28) | Family | AMD Ryzen 5 (85) |
| AMD Ryzen 7040 (21) | CPU group | AMD Ryzen 8040 (20) |
| 6 | Generation | 7 |
| Phoenix (Zen 4) | Architecture | Hawk Point (Zen 4) |
| Mobile | Segment | Mobile |
| -- | Predecessor | AMD Ryzen 5 7640U |
| AMD Ryzen 5 PRO 8540U | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 5 PRO 7540U is a 6 core processor with a clock frequency of 3.20 GHz (4.90 GHz). The AMD Ryzen 5 8640U has 6 CPU cores with a clock frequency of 3.50 GHz (4.90 GHz). |
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| AMD Ryzen 5 PRO 7540U | Characteristic | AMD Ryzen 5 8640U |
| 6 | Cores | 6 |
| 12 | Threads | 12 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 3.20 GHz | Frequency | 3.50 GHz |
| 4.90 GHz | Turbo Frequency (1 Core) | 4.90 GHz |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe 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 740M | GPU | AMD Radeon 760M |
| 0.80 GHz | GPU frequency | 0.80 GHz |
| 2.50 GHz | GPU (Turbo) | 2.60 GHz |
| 10 | GPU Generation | 10 |
| 4 nm | Technology | 4 nm |
| 4 | Max. displays | 4 |
| 4 | Compute units | 8 |
| 256 | Shader | 512 |
| Yes | Hardware Raytracing | Yes |
| AMD FSR | Frame Generation | AMD FSR |
| 32 GB | Max. GPU Memory | 32 GB |
| 12 | 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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| AMD Radeon 740M | GPU | AMD Radeon 760M |
| Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
| Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
| Decode / Encode | Codec h264 | Decode / Encode |
| Decode | Codec VP9 | Decode |
| Decode | Codec VP8 | Decode |
| Decode / Encode | Codec AV1 | Decode / Encode |
| Decode | Codec AVC | Decode |
| Decode | Codec VC-1 | Decode |
| Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 5 PRO 7540U supports a maximum of 256 GB of memory in 2 memory channels. The AMD Ryzen 5 8640U can connect up to 256 GB of memory in 2 memory channels. |
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| AMD Ryzen 5 PRO 7540U | Characteristic | AMD Ryzen 5 8640U |
| DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 |
| 256 GB | Max. Memory | 256 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 120.0 GB/s | Max. Bandwidth | 120.0 GB/s |
| Yes | ECC | Yes |
| 6.00 MB | L2 Cache | 6.00 MB |
| 16.00 MB | L3 Cache | 16.00 MB |
| 4.0 | PCIe version | 4.0 |
| 20 | PCIe lanes | 20 |
| 39.4 GB/s | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 5 PRO 7540U has a TDP of 15 W, that of the AMD Ryzen 5 8640U is 28 W. |
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| AMD Ryzen 5 PRO 7540U | Characteristic | AMD Ryzen 5 8640U |
| 15 W | TDP (PL1 / PBP) | 28 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | 30 W |
| -- | TDP down | 15 W |
| 100 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 5 PRO 7540U has a 22.00 MB cache, while the AMD Ryzen 5 8640U cache has a total of 22.00 MB. |
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| AMD Ryzen 5 PRO 7540U | Characteristic | AMD Ryzen 5 8640U |
| 4 nm | Technology | 4 nm |
| Monolithic | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 |
| FP8 | Socket | FP8 |
| AMD-V, SVM | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
| Q2/2023 | Release date | Q1/2024 |
| -- | Release price | -- |
| show more data | show more data | |
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Rate these processors
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 5 PRO 7540U
AMD Radeon 740M @ 2.50 GHz |
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AMD Ryzen 5 8640U
AMD Radeon 760M @ 2.60 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 Ryzen 5 PRO 7540U
6C 12T @ 4.90 GHz |
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AMD Ryzen 5 8640U
6C 12T @ 4.90 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 5 PRO 7540U
6C 12T @ 3.20 GHz |
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AMD Ryzen 5 8640U
6C 12T @ 3.50 GHz |
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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 5 PRO 7540U
6C 12T @ 4.90 GHz |
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AMD Ryzen 5 8640U
6C 12T @ 4.90 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 5 PRO 7540U
6C 12T @ 3.20 GHz |
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AMD Ryzen 5 8640U
6C 12T @ 3.50 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 5 PRO 7540U
6C 12T @ 4.90 GHz |
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AMD Ryzen 5 8640U
6C 12T @ 4.90 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 5 PRO 7540U
6C 12T @ 3.20 GHz |
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AMD Ryzen 5 8640U
6C 12T @ 3.50 GHz |
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CPU performance per watt (efficiency)
Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
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AMD Ryzen 5 PRO 7540U
3.20 GHz |
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AMD Ryzen 5 8640U
10,675 CB R23 MC @ 24 W |
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Devices using this processor |
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| AMD Ryzen 5 PRO 7540U | AMD Ryzen 5 8640U |
| Unknown | Unknown |
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