Intel Atom Z3740 vs AMD EPYC Embedded 3451
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CPU comparison with benchmarks
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| Intel Atom Z3740 | AMD EPYC Embedded 3451 | |
CPU comparisonIntel Atom Z3740 or AMD EPYC Embedded 3451 - 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 Atom Z3740 has 4 cores with 4 threads and clocks with a maximum frequency of 1.86 GHz. Up to 4 GB of memory is supported in 2 memory channels. The Intel Atom Z3740 was released in Q3/2013. The AMD EPYC Embedded 3451 has 16 cores with 32 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to 1024 GB of memory in 4 memory channels. The AMD EPYC Embedded 3451 was released in Q1/2018. |
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| Intel Atom (108) | Family | AMD EPYC (129) |
| Intel Atom Z3700 (16) | CPU group | AMD EPYC Embedded 3000 (7) |
| 4 | Generation | 1 |
| Bay Trail | Architecture | Snowy Owl (Zen) |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Atom Z3740 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Atom Z3740 is 1.33 GHz (1.86 GHz) while the AMD EPYC Embedded 3451 has 16 CPU cores and 32 threads can calculate simultaneously. The clock frequency of the AMD EPYC Embedded 3451 is at 2.14 GHz (3.00 GHz). |
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| Intel Atom Z3740 | Characteristic | AMD EPYC Embedded 3451 |
| 4 | Cores | 16 |
| 4 | Threads | 32 |
| normal | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | Yes |
| 1.33 GHz | Frequency | 2.14 GHz |
| 1.86 GHz | Turbo Frequency (1 Core) | 3.00 GHz |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe Intel Atom Z3740 or AMD EPYC Embedded 3451 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 (Bay Trail GT1) | GPU | no iGPU |
| 0.31 GHz | GPU frequency | -- |
| 0.67 GHz | GPU (Turbo) | -- |
| 7 | GPU Generation | -- |
| 22 nm | Technology | |
| 2 | Max. displays | |
| 4 | Compute units | -- |
| 32 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 2 GB | Max. GPU Memory | -- |
| 11.2 | 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 (Bay Trail GT1) | GPU | no iGPU |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | No |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode | Codec JPEG | No |
Memory & PCIeThe Intel Atom Z3740 can use up to 4 GB of memory in 2 memory channels. The maximum memory bandwidth is 17.1 GB/s. The AMD EPYC Embedded 3451 supports up to 1024 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 85.3 GB/s. |
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| Intel Atom Z3740 | Characteristic | AMD EPYC Embedded 3451 |
| LPDDR3-1066 | Memory | DDR4-2666 |
| 4 GB | Max. Memory | 1024 GB |
| 2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
| 17.1 GB/s | Max. Bandwidth | 85.3 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | 8.00 MB |
| 2.00 MB | L3 Cache | 32.00 MB |
| -- | PCIe version | 3.0 |
| -- | PCIe lanes | 64 |
| -- | PCIe Bandwidth | 63.0 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Atom Z3740 is 4 W, while the AMD EPYC Embedded 3451 has a TDP of 100 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Atom Z3740 | Characteristic | AMD EPYC Embedded 3451 |
| 4 W | TDP (PL1 / PBP) | 100 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | 80 W |
| 90 °C | Tjunction max. | 105 °C |
Technical detailsThe Intel Atom Z3740 is manufactured in 22 nm and has 2.00 MB cache. The AMD EPYC Embedded 3451 is manufactured in 14 nm and has a 40.00 MB cache. |
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| Intel Atom Z3740 | Characteristic | AMD EPYC Embedded 3451 |
| 22 nm | Technology | 14 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| BGA 1380 | Socket | SP4 |
| VT-x, VT-x EPT | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Operating systems | Windows 10, Linux | |
| Q3/2013 | Release date | Q1/2018 |
| -- | Release price | -- |
| show more data | show more data | |
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4C 4T @ 1.33 GHz (1.86 GHz) buy now on Amazon and save!
16C 32T @ 2.14 GHz (3.00 GHz) buy now on Amazon and save!
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Average performance in benchmarks
⌀ Single core performance in 0 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
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 Atom Z3740
4C 4T @ 1.33 GHz |
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AMD EPYC Embedded 3451
16C 32T @ 2.14 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 Atom Z3740
4C 4T @ 1.86 GHz |
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AMD EPYC Embedded 3451
16C 32T @ 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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Intel Atom Z3740
4C 4T @ 1.33 GHz |
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AMD EPYC Embedded 3451
16C 32T @ 2.14 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 Atom Z3740
4C 4T @ 1.86 GHz |
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AMD EPYC Embedded 3451
16C 32T @ 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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Intel Atom Z3740
4C 4T @ 1.33 GHz |
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AMD EPYC Embedded 3451
16C 32T @ 2.14 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 Atom Z3740
Intel HD Graphics (Bay Trail GT1) @ 0.67 GHz |
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AMD EPYC Embedded 3451
@ 0.00 GHz |
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Devices using this processor |
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| Intel Atom Z3740 | AMD EPYC Embedded 3451 |
| Unknown | Unknown |
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