Intel Core i5-520UM vs AMD Athlon II X4 638
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CPU comparison with benchmarks
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| Intel Core i5-520UM | AMD Athlon II X4 638 | |
CPU comparisonIntel Core i5-520UM or AMD Athlon II X4 638 - 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 i5-520UM has 2 cores with 4 threads and clocks with a maximum frequency of 1.87 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Intel Core i5-520UM was released in Q1/2010. The AMD Athlon II X4 638 has 4 cores with 4 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The AMD Athlon II X4 638 was released in Q1/2012. |
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| Intel Core i5 (331) | Family | AMD Athlon II (52) |
| Intel Core i5 500 (3) | CPU group | AMD Athlon II X4 (Llano) (5) |
| 1 | Generation | 2 |
| Arrandale | Architecture | Llano |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i5-520UM has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i5-520UM is 1.07 GHz (1.87 GHz) while the AMD Athlon II X4 638 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Athlon II X4 638 is at 2.70 GHz. |
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| Intel Core i5-520UM | Characteristic | AMD Athlon II X4 638 |
| 2 | Cores | 4 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 1.07 GHz | Frequency | 2.70 GHz |
| 1.87 GHz | Turbo Frequency (1 Core) | -- |
| -- | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The Intel Core i5-520UM or AMD Athlon II X4 638 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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| Intel HD Graphics (Westmere) | GPU | no iGPU |
| 0.50 GHz | GPU frequency | -- |
| 0.73 GHz | GPU (Turbo) | -- |
| 5 | GPU Generation | -- |
| 32 nm | Technology | |
| 2 | Max. displays | |
| 12 | Compute units | -- |
| 24 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 2 GB | Max. GPU Memory | -- |
| 10.1 | 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 HD Graphics (Westmere) | GPU | no iGPU |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode | Codec h264 | No |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode | Codec AVC | No |
| No | Codec VC-1 | No |
| No | Codec JPEG | No |
Memory & PCIeThe Intel Core i5-520UM can use up to 8 GB of memory in 2 memory channels. The maximum memory bandwidth is 12.8 GB/s. The AMD Athlon II X4 638 supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s. |
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| Intel Core i5-520UM | Characteristic | AMD Athlon II X4 638 |
| DDR3-800 | Memory | DDR3-1333 |
| 8 GB | Max. Memory | 16 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 12.8 GB/s | Max. Bandwidth | 21.3 GB/s |
| No | ECC | No |
| 3.00 MB | L2 Cache | 4.00 MB |
| -- | L3 Cache | -- |
| 2.0 | PCIe version | 2.0 |
| 16 | PCIe lanes | -- |
| 8.0 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i5-520UM is 18 W, while the AMD Athlon II X4 638 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Core i5-520UM | Characteristic | AMD Athlon II X4 638 |
| 18 W | TDP (PL1 / PBP) | 65 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 105 °C | Tjunction max. | -- |
Technical detailsThe Intel Core i5-520UM is manufactured in 32 nm and has 3.00 MB cache. The AMD Athlon II X4 638 is manufactured in 32 nm and has a 4.00 MB cache. |
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| Intel Core i5-520UM | Characteristic | AMD Athlon II X4 638 |
| 32 nm | Technology | 32 nm |
| Monolithic | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | MMX, 3DNow!, SSE3, SSE4a |
| BGA 1288 | Socket | FM1 |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V |
| Yes | AES-NI | No |
| Windows, Linux | Operating systems | Windows 10, Linux |
| Q1/2010 | Release date | Q1/2012 |
| -- | Release price | -- |
| show more data | show more data | |
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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 Core i5-520UM
2C 4T @ 1.87 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 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 i5-520UM
2C 4T @ 1.07 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 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 i5-520UM
Intel HD Graphics (Westmere) @ 0.73 GHz |
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AMD Athlon II X4 638
@ 0.00 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 i5-520UM
2C 4T @ 1.07 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
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Devices using this processor |
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| Intel Core i5-520UM | AMD Athlon II X4 638 |
| Unknown | Unknown |
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