Intel Core i3-8300 vs AMD Opteron X3421
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CPU comparison with benchmarks
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| Intel Core i3-8300 | AMD Opteron X3421 | |
CPU comparisonIntel Core i3-8300 or AMD Opteron X3421 - 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 i3-8300 has 4 cores with 4 threads and clocks with a maximum frequency of 3.70 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Core i3-8300 was released in Q4/2017. The AMD Opteron X3421 has 4 cores with 4 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Opteron X3421 was released in Q2/2015. |
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| Intel Core i3 (205) | Family | AMD Opteron (4) |
| Intel Core i 8000 (20) | CPU group | AMD Opteron X3000 (3) |
| 8 | Generation | 0 |
| Coffee Lake S | Architecture | Toronto (Excavator) |
| Desktop / Server | Segment | Desktop / Server |
| Intel Core i3-7300 | Predecessor | -- |
| Intel Core i3-9300 | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i3-8300 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i3-8300 is 3.70 GHz while the AMD Opteron X3421 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Opteron X3421 is at 2.10 GHz (3.40 GHz). |
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| Intel Core i3-8300 | Characteristic | AMD Opteron X3421 |
| 4 | Cores | 4 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| No | Hyperthreading | No |
| No | Overclocking ? | No |
| 3.70 GHz | Frequency | 2.10 GHz |
| -- | Turbo Frequency (1 Core) | 3.40 GHz |
| -- | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The Intel Core i3-8300 or AMD Opteron X3421 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 UHD Graphics 630 | GPU | AMD Radeon R7 - 512 (Toronto) |
| 0.35 GHz | GPU frequency | 0.80 GHz |
| 1.10 GHz | GPU (Turbo) | -- |
| 9.5 | GPU Generation | 0 |
| 14 nm | Technology | |
| 3 | Max. displays | 3 |
| 24 | Compute units | 8 |
| 192 | Shader | 512 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 64 GB | Max. GPU Memory | 2 GB |
| 12 | 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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| Intel UHD Graphics 630 | GPU | AMD Radeon R7 - 512 (Toronto) |
| Decode / Encode | Codec h265 / HEVC (8 bit) | Decode |
| Decode / Encode | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | Decode / Encode |
| 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 | Decode |
Memory & PCIeThe Intel Core i3-8300 can use up to 64 GB of memory in 2 memory channels. The maximum memory bandwidth is 38.4 GB/s. The AMD Opteron X3421 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s. |
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| Intel Core i3-8300 | Characteristic | AMD Opteron X3421 |
| DDR4-2400 | Memory | DDR4-2400 |
| 64 GB | Max. Memory | |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 38.4 GB/s | Max. Bandwidth | 38.4 GB/s |
| Yes | ECC | Yes |
| -- | L2 Cache | 2.00 MB |
| 6.00 MB | L3 Cache | -- |
| 3.0 | PCIe version | 3.0 |
| 16 | PCIe lanes | 8 |
| 15.8 GB/s | PCIe Bandwidth | 7.9 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i3-8300 is 62 W, while the AMD Opteron X3421 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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| Intel Core i3-8300 | Characteristic | AMD Opteron X3421 |
| 62 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | 35 W |
| -- | TDP down | 12 W |
| 100 °C | Tjunction max. | -- |
Technical detailsThe Intel Core i3-8300 is manufactured in 14 nm and has 6.00 MB cache. The AMD Opteron X3421 is manufactured in 28 nm and has a 2.00 MB cache. |
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| Intel Core i3-8300 | Characteristic | AMD Opteron X3421 |
| 14 nm | Technology | 28 nm |
| Monolithic | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2 |
| LGA 1151-2 | Socket | FP4 |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, AMD-Vt |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | Windows 10, Linux |
| Q4/2017 | Release date | Q2/2015 |
| 125 $ | Release price | -- |
| show more data | show more data | |
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Rate these processors
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 i3-8300
Intel UHD Graphics 630 @ 1.10 GHz |
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AMD Opteron X3421
AMD Radeon R7 - 512 (Toronto) @ 0.80 GHz |
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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 i3-8300
4C 4T @ 3.70 GHz |
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AMD Opteron X3421
4C 4T @ 3.40 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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Intel Core i3-8300
4C 4T @ 3.70 GHz |
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AMD Opteron X3421
4C 4T @ 2.10 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 Core i3-8300
4C 4T @ 3.70 GHz |
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AMD Opteron X3421
4C 4T @ 3.40 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 Core i3-8300
4C 4T @ 3.70 GHz |
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AMD Opteron X3421
4C 4T @ 2.10 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 i3-8300
4C 4T @ 3.70 GHz |
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AMD Opteron X3421
4C 4T @ 2.10 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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Intel Core i3-8300
4C 4T @ 3.70 GHz |
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AMD Opteron X3421
4C 4T @ 3.40 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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Intel Core i3-8300
4C 4T @ 3.70 GHz |
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AMD Opteron X3421
4C 4T @ 2.10 GHz |
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Devices using this processor |
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| Intel Core i3-8300 | AMD Opteron X3421 |
| Unknown | Unknown |
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