AMD Athlon 300U vs Intel Core i3-8121U
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CPU comparison with benchmarks
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| AMD Athlon 300U | Intel Core i3-8121U | |
CPU comparisonIn this CPU comparison, we compare the AMD Athlon 300U and the Intel Core i3-8121U and use benchmarks to check which processor is faster.
We compare the AMD Athlon 300U 2 core processor released in Q1/2019 with the Intel Core i3-8121U which has 2 CPU cores and was introduced in Q2/2018. |
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| AMD Athlon (29) | Family | Intel Core i3 (205) |
| AMD Athlon 300 (1) | CPU group | Intel Core i 8000U (CL) (1) |
| 6 | Generation | 8 |
| Picasso (Zen+) | Architecture | Cannon Lake U |
| Mobile | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Athlon 300U is a 2 core processor with a clock frequency of 2.40 GHz (3.30 GHz). The processor can compute 4 threads at the same time. The Intel Core i3-8121U clocks with 2.20 GHz (3.20 GHz), has 2 CPU cores and can calculate 4 threads in parallel. |
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| AMD Athlon 300U | Characteristic | Intel Core i3-8121U |
| 2 | Cores | 2 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 2.40 GHz | Frequency | 2.20 GHz |
| 3.30 GHz | Turbo Frequency (1 Core) | 3.20 GHz |
| 2.40 GHz | Turbo Frequency (All Cores) | 2.70 GHz |
Internal GraphicsGraphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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| AMD Radeon RX Vega 3 (Raven Ridge) | GPU | no iGPU |
| 1.00 GHz | GPU frequency | -- |
| -- | GPU (Turbo) | -- |
| 8 | GPU Generation | -- |
| 14 nm | Technology | |
| 3 | Max. displays | |
| 3 | Compute units | -- |
| 192 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 2 GB | Max. GPU Memory | -- |
| 12 | 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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| AMD Radeon RX Vega 3 (Raven Ridge) | 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 / Encode | Codec VP9 | No |
| Decode / Encode | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeUp to 32 GB of memory in a maximum of 2 memory channels is supported by the AMD Athlon 300U, while the Intel Core i3-8121U supports a maximum of 32 GB of memory with a maximum memory bandwidth of 38.4 GB/s enabled. |
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| AMD Athlon 300U | Characteristic | Intel Core i3-8121U |
| DDR4-2400 | Memory | LPDDR4-2400, DDR4-2400 |
| 32 GB | Max. Memory | 32 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 38.4 GB/s | Max. Bandwidth | 38.4 GB/s |
| Yes | ECC | No |
| -- | L2 Cache | -- |
| 4.00 MB | L3 Cache | 4.00 MB |
| 3.0 | PCIe version | 3.0 |
| 12 | PCIe lanes | 16 |
| 11.8 GB/s | PCIe Bandwidth | 15.8 GB/s |
Thermal ManagementThe AMD Athlon 300U has a TDP of 15 W. The TDP of the Intel Core i3-8121U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| AMD Athlon 300U | Characteristic | Intel Core i3-8121U |
| 15 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 105 °C | Tjunction max. | 105 °C |
Technical detailsThe AMD Athlon 300U has 4.00 MB cache and is manufactured in 12 nm. The cache of Intel Core i3-8121U is at 4.00 MB. The processor is manufactured in 10 nm. |
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| AMD Athlon 300U | Characteristic | Intel Core i3-8121U |
| 12 nm | Technology | 10 nm |
| Unknown | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4.1, SSE4.2, AVX2, AVX-512 |
| FP5 | Socket | BGA 1356 |
| AMD-V, SVM | Virtualization | VT-x, VT-x EPT, VT-d |
| Yes | AES-NI | Yes |
| Operating systems | Windows 10, Windows 11, Linux | |
| Q1/2019 | Release date | Q2/2018 |
| -- | Release price | -- |
| show more data | show more data | |
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 4 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 300U
2C 4T @ 3.30 GHz |
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Intel Core i3-8121U
2C 4T @ 3.20 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 300U
2C 4T @ 2.40 GHz |
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Intel Core i3-8121U
2C 4T @ 2.70 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 300U
2C 4T @ 3.30 GHz |
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Intel Core i3-8121U
2C 4T @ 3.20 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 300U
2C 4T @ 2.40 GHz |
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Intel Core i3-8121U
2C 4T @ 2.70 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 300U
2C 4T @ 2.40 GHz |
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Intel Core i3-8121U
2C 4T @ 2.70 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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AMD Athlon 300U
2C 4T @ 3.30 GHz |
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Intel Core i3-8121U
2C 4T @ 3.20 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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AMD Athlon 300U
2C 4T @ 2.40 GHz |
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Intel Core i3-8121U
2C 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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AMD Athlon 300U
AMD Radeon RX Vega 3 (Raven Ridge) @ 1.00 GHz |
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Intel Core i3-8121U
@ 0.00 GHz |
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Devices using this processor |
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| AMD Athlon 300U | Intel Core i3-8121U |
| Unknown | Unknown |
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