Intel Atom C2538 vs Intel Core Ultra 7 164U
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CPU comparison with benchmarks
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| Intel Atom C2538 | Intel Core Ultra 7 164U | |
CPU comparisonIntel Atom C2538 or Intel Core Ultra 7 164U - 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 Atom C2538 has 4 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Atom C2538 was released in Q3/2013. The Intel Core Ultra 7 164U has 12 cores with 14 threads and clocks with a maximum frequency of 4.80 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core Ultra 7 164U was released in Q1/2024. |
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| Intel Atom (108) | Family | Intel Core Ultra 7 (10) |
| Intel Atom C2000 (7) | CPU group | Intel Core Ultra 100U (7) |
| 3 | Generation | 1 |
| Avoton | Architecture | Meteor Lake U |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Atom C2538 is a 4 core processor with a clock frequency of 2.40 GHz. The Intel Core Ultra 7 164U has 12 CPU cores with a clock frequency of 1.10 GHz (4.80 GHz). |
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| Intel Atom C2538 | Characteristic | Intel Core Ultra 7 164U |
| 4 | Cores | 12 |
| 4 | Threads | 14 |
| normal | Core architecture | hybrid (big.LITTLE) |
| No | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 2.40 GHz | A-Core | 1.10 GHz (4.80 GHz) 2x Redwood Cove |
| -- | B-Core | 0.70 GHz (3.80 GHz) 8x Crestmont |
| -- | C-Core | 0.40 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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| Intel Atom C2538 | Characteristic | Intel Core Ultra 7 164U |
| -- | AI hardware | Intel® AI Boost |
| -- | AI specifications | Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) |
| -- | 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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| no iGPU | GPU | Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) |
| GPU frequency | 0.60 GHz | |
| -- | GPU (Turbo) | 1.80 GHz |
| -- | GPU Generation | -- |
| Technology | 5 nm | |
| Max. displays | 4 | |
| -- | Compute units | 64 |
| -- | Shader | 512 |
| No | Hardware Raytracing | Yes |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 32 GB |
| -- | 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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| no iGPU | GPU | Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) |
| No | Codec h265 / HEVC (8 bit) | Decode / Encode |
| No | Codec h265 / HEVC (10 bit) | Decode / Encode |
| No | Codec h264 | Decode / Encode |
| No | Codec VP9 | Decode |
| No | Codec VP8 | Decode |
| No | Codec AV1 | Decode / Encode |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Atom C2538 supports a maximum of 64 GB of memory in 2 memory channels. The Intel Core Ultra 7 164U can connect up to 64 GB of memory in 2 memory channels. |
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| Intel Atom C2538 | Characteristic | Intel Core Ultra 7 164U |
| DDR3L-1600, DDR3-1600 | Memory | LPDDR5-6400 |
| 64 GB | Max. Memory | 64 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 25.6 GB/s | Max. Bandwidth | 102.4 GB/s |
| Yes | ECC | No |
| 2.00 MB | L2 Cache | 12.00 MB |
| -- | L3 Cache | -- |
| 2.0 | PCIe version | 4.0 |
| 16 | PCIe lanes | 12 |
| 8.0 GB/s | PCIe Bandwidth | 23.6 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom C2538 has a TDP of 15 W, that of the Intel Core Ultra 7 164U is 9 W. |
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| Intel Atom C2538 | Characteristic | Intel Core Ultra 7 164U |
| 15 W | TDP (PL1 / PBP) | 9 W |
| -- | TDP (PL2) | 30 W |
| -- | TDP up | 15 W |
| -- | TDP down | -- |
| -- | Tjunction max. | 110 °C |
Technical detailsThe Intel Atom C2538 has a 2.00 MB cache, while the Intel Core Ultra 7 164U cache has a total of 12.00 MB. |
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| Intel Atom C2538 | Characteristic | Intel Core Ultra 7 164U |
| 22 nm | Technology | 7 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
| BGA 1283 | Socket | BGA 2551 |
| VT-x, VT-x EPT | Virtualization | VT-x, VT-x EPT, VT-d |
| Yes | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 11, Linux |
| Q3/2013 | Release date | Q1/2024 |
| 104 $ | Release price | -- |
| show more data | show more data | |
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12C 14T @ 1.10 GHz (4.80 GHz) buy now on Amazon and save!
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Rate these processors
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 Atom C2538
4C 4T @ 2.40 GHz |
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Intel Core Ultra 7 164U
12C 14T @ 4.80 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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Intel Atom C2538
4C 4T @ 2.40 GHz |
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Intel Core Ultra 7 164U
12C 14T @ 1.10 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 Atom C2538
4C 4T @ 2.40 GHz |
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Intel Core Ultra 7 164U
12C 14T @ 4.80 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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Intel Atom C2538
4C 4T @ 2.40 GHz |
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Intel Core Ultra 7 164U
12C 14T @ 1.10 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 Atom C2538
@ 0.00 GHz |
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Intel Core Ultra 7 164U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.80 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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Intel Atom C2538
4C 4T @ 2.40 GHz |
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Intel Core Ultra 7 164U
12C 14T @ 1.10 GHz |
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Devices using this processor |
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| Intel Atom C2538 | Intel Core Ultra 7 164U |
| Unknown | Unknown |
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