AMD Athlon II X4 645 vs Intel Pentium Gold 6405U
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CPU comparison with benchmarks
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| AMD Athlon II X4 645 | Intel Pentium Gold 6405U | |
CPU comparisonAMD Athlon II X4 645 or Intel Pentium Gold 6405U - 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 645 has 4 cores with 4 threads and clocks with a maximum frequency of 3.10 GHz. Up to 16 GB of memory is supported in 2 memory channels. The AMD Athlon II X4 645 was released in Q3/2010. The Intel Pentium Gold 6405U has 2 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Pentium Gold 6405U was released in Q4/2019. |
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| AMD Athlon II (52) | Family | Intel Pentium (150) |
| AMD Athlon II X4 (Propus) (10) | CPU group | Intel Pentium 6000 (1) |
| 1 | Generation | 10 |
| Propus | Architecture | Comet Lake U |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Athlon II X4 645 is a 4 core processor with a clock frequency of 3.10 GHz. The Intel Pentium Gold 6405U has 2 CPU cores with a clock frequency of 2.40 GHz. |
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| AMD Athlon II X4 645 | Characteristic | Intel Pentium Gold 6405U |
| 4 | Cores | 2 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 3.10 GHz | Frequency | 2.40 GHz |
| -- | Turbo Frequency (1 Core) | -- |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe 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 UHD Graphics 610 |
| GPU frequency | 0.30 GHz | |
| -- | GPU (Turbo) | 0.95 GHz |
| -- | GPU Generation | 9.5 |
| Technology | 14 nm | |
| Max. displays | 3 | |
| -- | Compute units | 12 |
| -- | Shader | 96 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 32 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 | Intel UHD Graphics 610 |
| 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 645 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Pentium Gold 6405U can connect up to 64 GB of memory in 2 memory channels. |
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| AMD Athlon II X4 645 | Characteristic | Intel Pentium Gold 6405U |
| DDR3-1333 | Memory | LPDDR3-2133, DDR4-2400 |
| 16 GB | Max. Memory | 64 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 21.3 GB/s | Max. Bandwidth | 38.4 GB/s |
| No | ECC | No |
| 2.00 MB | L2 Cache | -- |
| -- | L3 Cache | 2.00 MB |
| 2.0 | PCIe version | 2.0 |
| -- | PCIe lanes | 12 |
| -- | PCIe Bandwidth | 6.0 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Athlon II X4 645 has a TDP of 95 W, that of the Intel Pentium Gold 6405U is 15 W. |
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| AMD Athlon II X4 645 | Characteristic | Intel Pentium Gold 6405U |
| 95 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | 12.5 W |
| -- | Tjunction max. | 100 °C |
Technical detailsThe AMD Athlon II X4 645 has a 2.00 MB cache, while the Intel Pentium Gold 6405U cache has a total of 2.00 MB. |
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| AMD Athlon II X4 645 | Characteristic | Intel Pentium Gold 6405U |
| 45 nm | Technology | 14 nm |
| Unknown | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| MMX, 3DNow!, SSE3, SSE4a | ISA extensions | SSE4.1, SSE4.2 |
| AM3 | Socket | BGA 1528 |
| AMD-V | Virtualization | VT-x, VT-x EPT, VT-d |
| No | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Windows 11, Linux |
| Q3/2010 | Release date | Q4/2019 |
| -- | Release price | 193 $ |
| 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 2 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 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 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 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 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 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 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 Athlon II X4 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 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 Athlon II X4 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 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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AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 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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AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 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 645
@ 0.00 GHz |
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Intel Pentium Gold 6405U
Intel UHD Graphics 610 @ 0.95 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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AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz |
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Devices using this processor |
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| AMD Athlon II X4 645 | Intel Pentium Gold 6405U |
| Unknown | Lenovo Ideapad 3 17IML05 |
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