Intel Xeon W-1250 vs Intel Xeon D-1521
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CPU comparison with benchmarks
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| Intel Xeon W-1250 | Intel Xeon D-1521 | |
CPU comparisonIntel Xeon W-1250 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 Xeon W-1250 has 6 cores with 12 threads and clocks with a maximum frequency of 4.70 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Xeon W-1250 was released in Q2/2020. 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 Xeon W (83) | Family | Intel Xeon D (79) |
| Intel Xeon W-1200 (13) | CPU group | Intel Xeon D-1500 (22) |
| 10 | Generation | 1 |
| Comet Lake W | Architecture | Broadwell |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Xeon W-1250 is a 6 core processor with a clock frequency of 3.30 GHz (4.70 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 Xeon W-1250 | Characteristic | Intel Xeon D-1521 |
| 6 | Cores | 4 |
| 12 | Threads | 8 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 3.30 GHz | Frequency | 2.40 GHz |
| 4.70 GHz | Turbo Frequency (1 Core) | 2.70 GHz |
| 4.20 GHz | Turbo Frequency (All Cores) | 2.40 GHz |
Integrated graphics (iGPU)The 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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| Intel UHD Graphics P630 | GPU | no iGPU |
| 0.35 GHz | GPU frequency | -- |
| 1.20 GHz | GPU (Turbo) | -- |
| 9.5 | GPU Generation | -- |
| 14 nm | Technology | |
| 3 | Max. displays | |
| 24 | Compute units | -- |
| 192 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 64 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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| Intel UHD Graphics P630 | 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 & PCIeThe Intel Xeon W-1250 supports a maximum of 128 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 Xeon W-1250 | Characteristic | Intel Xeon D-1521 |
| DDR4-2666 | Memory | DDR4-2133 |
| 128 GB | Max. Memory | 128 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 42.7 GB/s | Max. Bandwidth | 34.1 GB/s |
| Yes | ECC | Yes |
| 12.00 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 Xeon W-1250 has a TDP of 80 W, that of the Intel Xeon D-1521 is 45 W. |
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| Intel Xeon W-1250 | Characteristic | Intel Xeon D-1521 |
| 80 W | TDP (PL1 / PBP) | 45 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 100 °C | Tjunction max. | -- |
Technical detailsThe Intel Xeon W-1250 has a 12.00 MB cache, while the Intel Xeon D-1521 cache has a total of 6.00 MB. |
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| Intel Xeon W-1250 | 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, AVX2 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
| LGA 1200 | 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 |
| Q2/2020 | Release date | Q4/2015 |
| 255 $ | Release price | 216 $ |
| show more data | show more data | |
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4C 8T @ 2.40 GHz (2.70 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 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 Xeon W-1250
6C 12T @ 4.70 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 Xeon W-1250
6C 12T @ 4.20 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 Xeon W-1250
6C 12T @ 4.70 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 Xeon W-1250
6C 12T @ 4.20 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 Xeon W-1250
6C 12T @ 4.20 GHz |
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Intel Xeon D-1521
4C 8T @ 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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Intel Xeon W-1250
Intel UHD Graphics P630 @ 1.20 GHz |
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Intel Xeon D-1521
@ 0.00 GHz |
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Devices using this processor |
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| Intel Xeon W-1250 | Intel Xeon D-1521 |
| Unknown | Unknown |
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