Intel Core Ultra 5 135U vs AMD Ryzen 9 3900X
Last updated:
CPU comparison with benchmarks
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| Intel Core Ultra 5 135U | AMD Ryzen 9 3900X | |
CPU comparisonIntel Core Ultra 5 135U or AMD Ryzen 9 3900X - 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 Intel Core Ultra 5 135U has 12 cores with 14 threads and clocks with a maximum frequency of 4.40 GHz. Up to 96 GB of memory is supported in 2 memory channels. The Intel Core Ultra 5 135U was released in Q4/2023. The AMD Ryzen 9 3900X has 12 cores with 24 threads and clocks with a maximum frequency of 4.60 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 3900X was released in Q3/2019. |
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| Intel Core Ultra 5 (10) | Family | AMD Ryzen 9 (40) |
| Intel Core Ultra 100U (7) | CPU group | AMD Ryzen 3000 (15) |
| 1 | Generation | 3 |
| Meteor Lake U | Architecture | Matisse (Zen 2) |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | AMD Ryzen 9 5900X |
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CPU Cores and Base FrequencyThe Intel Core Ultra 5 135U is a 12 core processor with a clock frequency of 1.60 GHz (4.40 GHz). The AMD Ryzen 9 3900X has 12 CPU cores with a clock frequency of 3.80 GHz (4.60 GHz). |
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| Intel Core Ultra 5 135U | Characteristic | AMD Ryzen 9 3900X |
| 12 | Cores | 12 |
| 14 | Threads | 24 |
| hybrid (big.LITTLE) | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | Yes |
| 1.60 GHz (4.40 GHz) 2x Redwood Cove |
A-Core | 3.80 GHz (4.60 GHz) |
| 1.10 GHz (3.60 GHz) 8x Crestmont |
B-Core | -- |
| 0.70 GHz (2.10 GHz) 2x Crestmont |
C-Core | -- |
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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| Intel Core Ultra 5 135U | Characteristic | AMD Ryzen 9 3900X |
| Intel® AI Boost | AI hardware | -- |
| Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) | AI specifications | -- |
| -- | NPU + CPU + iGPU | -- |
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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| Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) | GPU | no iGPU |
| 0.60 GHz | GPU frequency | -- |
| 1.90 GHz | GPU (Turbo) | -- |
| -- | GPU Generation | -- |
| 5 nm | Technology | |
| 4 | Max. displays | |
| 64 | Compute units | -- |
| 512 | Shader | -- |
| Yes | Hardware Raytracing | No |
| No | Frame Generation | No |
| 32 GB | Max. GPU Memory | -- |
| 12.2 | 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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| Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) | GPU | no iGPU |
| Decode / Encode | Codec h265 / HEVC (8 bit) | No |
| Decode / Encode | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | No |
| Decode | Codec VP9 | No |
| Decode | Codec VP8 | No |
| Decode / Encode | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Intel Core Ultra 5 135U supports a maximum of 96 GB of memory in 2 memory channels. The AMD Ryzen 9 3900X can connect up to 128 GB of memory in 2 memory channels. |
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| Intel Core Ultra 5 135U | Characteristic | AMD Ryzen 9 3900X |
| LPDDR5X-7500, DDR5-5600 | Memory | DDR4-3200 |
| 96 GB | Max. Memory | 128 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 120.0 GB/s | Max. Bandwidth | 51.2 GB/s |
| No | ECC | Yes |
| 12.00 MB | L2 Cache | 6.00 MB |
| -- | L3 Cache | 64.00 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 Intel Core Ultra 5 135U has a TDP of 15 W, that of the AMD Ryzen 9 3900X is 105 W. |
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| Intel Core Ultra 5 135U | Characteristic | AMD Ryzen 9 3900X |
| 15 W | TDP (PL1 / PBP) | 105 W |
| 57 W | TDP (PL2) | 142 W |
| 28 W | TDP up | -- |
| 12 W | TDP down | -- |
| 110 °C | Tjunction max. | 95 °C |
Technical detailsThe Intel Core Ultra 5 135U has a 12.00 MB cache, while the AMD Ryzen 9 3900X cache has a total of 70.00 MB. |
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| Intel Core Ultra 5 135U | Characteristic | AMD Ryzen 9 3900X |
| 7 nm | Technology | 7 nm |
| Chiplet | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| BGA 2049 | Socket | AM4 (PGA 1331) |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
| Q4/2023 | Release date | Q3/2019 |
| -- | Release price | 485 $ |
| show more data | show more data | |
12C 14T @ 1.60 GHz (4.40 GHz) buy now on Amazon and save!
12C 24T @ 3.80 GHz (4.60 GHz) buy now on Amazon and save!
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Rate these processors
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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 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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Intel Core Ultra 5 135U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.90 GHz |
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AMD Ryzen 9 3900X
@ 0.00 GHz |
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Blender 3.1 Benchmark
In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 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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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz |
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Blender 2.81 (bmw27)
Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz |
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CPU-Z Benchmark 17 (Single-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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 3.80 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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Intel Core Ultra 5 135U
12C 14T @ 4.40 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.60 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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Intel Core Ultra 5 135U
12C 14T @ 1.60 GHz |
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AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz |
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Devices using this processor |
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| Intel Core Ultra 5 135U | AMD Ryzen 9 3900X |
| Unknown | Unknown |
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