AMD Ryzen 5 PRO 8640U vs Intel Core Ultra 5 115U
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CPU comparison with benchmarks
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| AMD Ryzen 5 PRO 8640U | Intel Core Ultra 5 115U | |
CPU comparisonIn this CPU comparison, we compare the AMD Ryzen 5 PRO 8640U and the Intel Core Ultra 5 115U and use benchmarks to check which processor is faster.
We compare the AMD Ryzen 5 PRO 8640U 6 core processor released in Q2/2024 with the Intel Core Ultra 5 115U which has 8 CPU cores and was introduced in Q4/2023. |
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| AMD Ryzen 5 PRO (28) | Family | Intel Core Ultra 5 (15) |
| AMD Ryzen 8040 (20) | CPU group | Intel Core Ultra 100U (7) |
| 7 | Generation | 1 |
| Hawk Point (Zen 4) | Architecture | Meteor Lake U |
| Mobile | Segment | Mobile |
| AMD Ryzen 5 PRO 7640U | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 5 PRO 8640U is a 6 core processor with a clock frequency of 3.50 GHz (4.90 GHz). The processor can compute 12 threads at the same time. The Intel Core Ultra 5 115U clocks with 1.50 GHz (4.20 GHz), has 8 CPU cores and can calculate 10 threads in parallel. |
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| AMD Ryzen 5 PRO 8640U | Characteristic | Intel Core Ultra 5 115U |
| 6 | Cores | 8 |
| 12 | Threads | 10 |
| normal | Core architecture | hybrid (big.LITTLE) |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 3.50 GHz (4.90 GHz) 6x Zen 4 |
A-Core | 1.50 GHz (4.20 GHz) 2x Redwood Cove |
| -- | B-Core | 1.00 GHz (3.50 GHz) 4x Crestmont |
| -- | C-Core | 0.70 GHz (2.10 GHz) 2x Crestmont |
NPU AI performanceThe performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. |
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| AMD Ryzen 5 PRO 8640U | Characteristic | Intel Core Ultra 5 115U |
| -- | AI hardware | Intel® AI Boost |
| -- | AI specifications | Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) |
| -- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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| AMD Radeon 760M | GPU | Intel Iris Xe 3 Core Graphics 48 EUs (Meteor Lake) |
| 0.80 GHz | GPU frequency | 0.60 GHz |
| 2.60 GHz | GPU (Turbo) | 1.80 GHz |
| 10 | GPU Generation | -- |
| 4 nm | Technology | 5 nm |
| 4 | Max. displays | 4 |
| 8 | Compute units | 48 |
| 512 | Shader | 384 |
| Yes | Hardware Raytracing | Yes |
| AMD FSR | Frame Generation | No |
| 32 GB | Max. GPU Memory | 32 GB |
| 12 | DirectX Version | 12.2 |
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 760M | GPU | Intel Iris Xe 3 Core Graphics 48 EUs (Meteor Lake) |
| 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 / Encode |
| Decode | Codec VC-1 | Decode |
| Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeUp to 256 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 5 PRO 8640U, while the Intel Core Ultra 5 115U supports a maximum of 96 GB of memory with a maximum memory bandwidth of 120.0 GB/s enabled. |
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| AMD Ryzen 5 PRO 8640U | Characteristic | Intel Core Ultra 5 115U |
| DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | LPDDR5-7500, DDR5-5600 |
| 256 GB | Max. Memory | 96 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 120.0 GB/s | Max. Bandwidth | 120.0 GB/s |
| Yes | ECC | No |
| 6.00 MB | L2 Cache | 10.00 MB |
| 16.00 MB | L3 Cache | -- |
| 4.0 | PCIe version | 4.0 |
| 20 | PCIe lanes | 20 |
| 39.4 GB/s | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe AMD Ryzen 5 PRO 8640U has a TDP of 28 W. The TDP of the Intel Core Ultra 5 115U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| AMD Ryzen 5 PRO 8640U | Characteristic | Intel Core Ultra 5 115U |
| 28 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | 57 W |
| -- | TDP up | -- |
| 15 W | TDP down | 12 W |
| 100 °C | Tjunction max. | 110 °C |
Technical detailsThe AMD Ryzen 5 PRO 8640U has 22.00 MB cache and is manufactured in 4 nm. The cache of Intel Core Ultra 5 115U is at 10.00 MB. The processor is manufactured in 7 nm. |
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| AMD Ryzen 5 PRO 8640U | Characteristic | Intel Core Ultra 5 115U |
| 4 nm | Technology | 7 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
| FP8 | Socket | BGA 2049 |
| AMD-V, SVM | Virtualization | VT-x, VT-x EPT, VT-d |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | Windows 11, Linux |
| Q2/2024 | Release date | Q4/2023 |
| -- | Release price | -- |
| show more data | show more data | |
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
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 8640U
6C 12T @ 4.90 GHz |
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Intel Core Ultra 5 115U
8C 10T @ 4.20 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 8640U
6C 12T @ 3.50 GHz |
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Intel Core Ultra 5 115U
8C 10T @ 1.50 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 5 PRO 8640U
AMD Radeon 760M @ 2.60 GHz |
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Intel Core Ultra 5 115U
Intel Iris Xe 3 Core Graphics 48 EUs (Meteor Lake) @ 1.80 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 8640U
6C 12T @ 4.90 GHz |
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Intel Core Ultra 5 115U
8C 10T @ 4.20 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 8640U
6C 12T @ 3.50 GHz |
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Intel Core Ultra 5 115U
8C 10T @ 1.50 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 8640U
6C 12T @ 4.90 GHz |
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Intel Core Ultra 5 115U
8C 10T @ 4.20 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 8640U
6C 12T @ 3.50 GHz |
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Intel Core Ultra 5 115U
8C 10T @ 1.50 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 8640U
10,675 CB R23 MC @ 24 W |
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Intel Core Ultra 5 115U
1.50 GHz |
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Devices using this processor |
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| AMD Ryzen 5 PRO 8640U | Intel Core Ultra 5 115U |
| Unknown | Unknown |
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