Intel Atom C3758 vs Intel Xeon D-1521
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CPU comparison with benchmarks
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| Intel Atom C3758 | Intel Xeon D-1521 | |
CPU comparisonIntel Atom C3758 or Intel Xeon D-1521 - 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 C3758 has 8 cores with 8 threads and clocks with a maximum frequency of 2.20 GHz. Up to 256 GB of memory is supported in 2 memory channels. The Intel Atom C3758 was released in Q3/2017. The Intel Xeon D-1521 has 4 cores with 8 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Xeon D-1521 was released in Q4/2015. |
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| Intel Atom (108) | Family | Intel Xeon D (79) |
| Intel Atom C3000 (20) | CPU group | Intel Xeon D-1500 (22) |
| 5 | Generation | 1 |
| Denverton | Architecture | Broadwell |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Atom C3758 is a 8 core processor with a clock frequency of 2.20 GHz. The Intel Xeon D-1521 has 4 CPU cores with a clock frequency of 2.40 GHz (2.70 GHz). |
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| Intel Atom C3758 | Characteristic | Intel Xeon D-1521 |
| 8 | Cores | 4 |
| 8 | Threads | 8 |
| normal | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 2.20 GHz | Frequency | 2.40 GHz |
| -- | Turbo Frequency (1 Core) | 2.70 GHz |
| -- | Turbo Frequency (All Cores) | 2.40 GHz |
Memory & PCIeThe Intel Atom C3758 supports a maximum of 256 GB of memory in 2 memory channels. The Intel Xeon D-1521 can connect up to 128 GB of memory in 2 memory channels. |
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| Intel Atom C3758 | Characteristic | Intel Xeon D-1521 |
| DDR4-2400 | Memory | DDR4-2133 |
| 256 GB | Max. Memory | 128 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 38.4 GB/s | Max. Bandwidth | 34.1 GB/s |
| Yes | ECC | Yes |
| 16.00 MB | L2 Cache | 6.00 MB |
| -- | L3 Cache | -- |
| 3.0 | PCIe version | 3.0 |
| 16 | PCIe lanes | 32 |
| 15.8 GB/s | PCIe Bandwidth | 31.5 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom C3758 has a TDP of 25 W, that of the Intel Xeon D-1521 is 45 W. |
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| Intel Atom C3758 | Characteristic | Intel Xeon D-1521 |
| 25 W | TDP (PL1 / PBP) | 45 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 100 °C | Tjunction max. | -- |
Technical detailsThe Intel Atom C3758 has a 16.00 MB cache, while the Intel Xeon D-1521 cache has a total of 6.00 MB. |
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| Intel Atom C3758 | Characteristic | Intel Xeon D-1521 |
| 14 nm | Technology | 14 nm |
| Monolithic | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
| BGA 1310 | Socket | BGA 1667 |
| VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT, VT-d |
| Yes | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q3/2017 | Release date | Q4/2015 |
| 193 $ | Release price | 216 $ |
| 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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Intel Atom C3758
8C 8T @ 2.20 GHz |
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Intel Xeon D-1521
4C 8T @ 2.70 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 C3758
8C 8T @ 2.20 GHz |
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Intel Xeon D-1521
4C 8T @ 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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Intel Atom C3758
8C 8T @ 2.20 GHz |
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Intel Xeon D-1521
4C 8T @ 2.40 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 C3758
8C 8T @ 2.20 GHz |
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Intel Xeon D-1521
4C 8T @ 2.70 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 C3758
8C 8T @ 2.20 GHz |
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Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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Devices using this processor |
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| Intel Atom C3758 | Intel Xeon D-1521 |
| Unknown | Unknown |
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