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Intel Xeon D-1521 | AMD EPYC 7281 | |
CPU comparisonIntel Xeon D-1521 or AMD EPYC 7281 - 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 D-1521 has 4 cores with 8 threads and clocks with a maximum frequency of 2.70 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Xeon D-1521 was released in Q4/2015. The AMD EPYC 7281 has 16 cores with 32 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7281 was released in Q3/2017. |
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Intel Xeon D (79) | Family | AMD EPYC (129) |
Intel Xeon D-1500 (22) | CPU group | AMD EPYC 7001 (12) |
1 | Generation | 1 |
Broadwell | Architecture | Naples (Zen) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Xeon D-1521 is a 4 core processor with a clock frequency of 2.40 GHz (2.70 GHz). The AMD EPYC 7281 has 16 CPU cores with a clock frequency of 2.20 GHz (2.70 GHz). |
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Intel Xeon D-1521 | Characteristic | AMD EPYC 7281 |
4 | Cores | 16 |
8 | Threads | 32 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
2.40 GHz | Frequency | 2.20 GHz |
2.70 GHz | Turbo Frequency (1 Core) | 2.70 GHz |
2.40 GHz | Turbo Frequency (All Cores) | 2.70 GHz |
Memory & PCIeThe Intel Xeon D-1521 supports a maximum of 128 GB of memory in 2 memory channels. The AMD EPYC 7281 can connect up to GB of memory in 8 memory channels. |
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Intel Xeon D-1521 | Characteristic | AMD EPYC 7281 |
DDR4-2133 | Memory | DDR4-2666 |
128 GB | Max. Memory | |
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
34.1 GB/s | Max. Bandwidth | 170.6 GB/s |
Yes | ECC | Yes |
6.00 MB | L2 Cache | -- |
-- | L3 Cache | 32.00 MB |
3.0 | PCIe version | 3.0 |
32 | PCIe lanes | 128 |
31.5 GB/s | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Xeon D-1521 has a TDP of 45 W, that of the AMD EPYC 7281 is 170 W. |
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Intel Xeon D-1521 | Characteristic | AMD EPYC 7281 |
45 W | TDP (PL1 / PBP) | 170 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Intel Xeon D-1521 has a 6.00 MB cache, while the AMD EPYC 7281 cache has a total of 32.00 MB. |
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Intel Xeon D-1521 | Characteristic | AMD EPYC 7281 |
14 nm | Technology | 14 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
BGA 1667 | Socket | SP3 |
VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q4/2015 | Release date | Q3/2017 |
216 $ | Release price | 625 $ |
show more data | show more data | |
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Intel Xeon D-1521
4C 8T @ 2.70 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
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Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
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Intel Xeon D-1521
4C 8T @ 2.70 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
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Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
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Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
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Intel Xeon D-1521
4C 8T @ 2.70 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
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Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
Devices using this processor |
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Intel Xeon D-1521 | AMD EPYC 7281 |
Unknown | Unknown |