AMD Athlon II X4 651 vs AMD Ryzen 3 5125C
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CPU comparison with benchmarks
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| AMD Athlon II X4 651 | AMD Ryzen 3 5125C | |
CPU comparisonAMD Athlon II X4 651 or AMD Ryzen 3 5125C - 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 Athlon II X4 651 has 4 cores with 4 threads and clocks with a maximum frequency of 3.00 GHz. Up to 16 GB of memory is supported in 2 memory channels. The AMD Athlon II X4 651 was released in Q4/2011. The AMD Ryzen 3 5125C has 2 cores with 4 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The AMD Ryzen 3 5125C was released in Q3/2022. |
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| AMD Athlon II (52) | Family | AMD Ryzen 3 (33) |
| AMD Athlon II X4 (Llano) (5) | CPU group | AMD Ryzen 5000C (4) |
| 2 | Generation | 4 |
| Llano | Architecture | Barcelo (Zen 3) |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Athlon II X4 651 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD Athlon II X4 651 is 3.00 GHz while the AMD Ryzen 3 5125C has 2 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 3 5125C is at 3.00 GHz (3.00 GHz). |
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| AMD Athlon II X4 651 | Characteristic | AMD Ryzen 3 5125C |
| 4 | Cores | 2 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 3.00 GHz | Frequency | 3.00 GHz |
| -- | Turbo Frequency (1 Core) | 3.00 GHz |
| -- | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The AMD Athlon II X4 651 or AMD Ryzen 3 5125C 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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| no iGPU | GPU | AMD Radeon RX Vega 3 (Raven Ridge) |
| GPU frequency | 1.20 GHz | |
| -- | GPU (Turbo) | -- |
| -- | GPU Generation | 8 |
| Technology | 14 nm | |
| Max. displays | 3 | |
| -- | Compute units | 3 |
| -- | Shader | 192 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 2 GB |
| -- | 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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| no iGPU | GPU | AMD Radeon RX Vega 3 (Raven Ridge) |
| 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 / Encode |
| No | Codec VP8 | Decode / Encode |
| No | Codec AV1 | No |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Athlon II X4 651 can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The AMD Ryzen 3 5125C supports up to 64 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s. |
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| AMD Athlon II X4 651 | Characteristic | AMD Ryzen 3 5125C |
| DDR3-1333 | Memory | LPDDR4-4266, DDR4-3200 |
| 16 GB | Max. Memory | 64 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 21.3 GB/s | Max. Bandwidth | 51.2 GB/s |
| No | ECC | Yes |
| 4.00 MB | L2 Cache | 1.00 MB |
| -- | L3 Cache | 8.00 MB |
| 2.0 | PCIe version | 3.0 |
| -- | PCIe lanes | 20 |
| -- | PCIe Bandwidth | 19.7 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Athlon II X4 651 is 100 W, while the AMD Ryzen 3 5125C has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD Athlon II X4 651 | Characteristic | AMD Ryzen 3 5125C |
| 100 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | 95 °C |
Technical detailsThe AMD Athlon II X4 651 is manufactured in 32 nm and has 4.00 MB cache. The AMD Ryzen 3 5125C is manufactured in 7 nm and has a 9.00 MB cache. |
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| AMD Athlon II X4 651 | Characteristic | AMD Ryzen 3 5125C |
| 32 nm | Technology | 7 nm |
| Unknown | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| MMX, 3DNow!, SSE3, SSE4a | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| FM1 | Socket | FP6 |
| AMD-V | Virtualization | AMD-V, SVM |
| No | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Windows 11, Linux |
| Q4/2011 | Release date | Q3/2022 |
| -- | 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 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 Athlon II X4 651
4C 4T @ 3.00 GHz |
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AMD Ryzen 3 5125C
2C 4T @ 3.00 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 Athlon II X4 651
4C 4T @ 3.00 GHz |
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AMD Ryzen 3 5125C
2C 4T @ 3.00 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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AMD Athlon II X4 651
4C 4T @ 3.00 GHz |
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AMD Ryzen 3 5125C
2C 4T @ 3.00 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 Athlon II X4 651
4C 4T @ 3.00 GHz |
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AMD Ryzen 3 5125C
2C 4T @ 3.00 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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AMD Athlon II X4 651
@ 0.00 GHz |
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AMD Ryzen 3 5125C
AMD Radeon RX Vega 3 (Raven Ridge) @ 1.20 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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AMD Athlon II X4 651
4C 4T @ 3.00 GHz |
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AMD Ryzen 3 5125C
2C 4T @ 3.00 GHz |
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Devices using this processor |
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| AMD Athlon II X4 651 | AMD Ryzen 3 5125C |
| Unknown | Unknown |
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