Winner
Intel Xeon D-1521
CPUBoss recommends the Intel Xeon D-1521 based on its performance, single-core performance and value.
See full details Intel Xeon D-1521 vs D-1518 |
Released October, 2015
Intel Xeon D-1521
- 2.4 GHz
- Quad core
5.2 Out of 10
Reasons to buy the Intel Xeon D-1521
 | Higher turbo clock speed 2.7 GHz | | Higher clock speed 2.4 GHz |
| | Better PassMark (Single core) score 1,441 | | Better PassMark score 6,980 |
VS
Released October, 2015
Intel Xeon D-1518
- 2.2 GHz
- Quad core
5.1 Out of 10
Reasons to buy the D-1518
| | Lower typical power consumption 28.44W | | Better performance per watt 4.49 pt/W |
| | Lower annual home energy cost 8.43 $/year | | Lower annual commercial energy cost 30.66 $/year |
CPUBoss Review Our evaluation of D-1521 vs D-1518 among all CPUs
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Sky Diver and Cloud Gate | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
| 5.2 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
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Intel Xeon D-1521CPUBoss Winner |  | |
Differences What are the advantages of each
| |||||||
| Higher turbo clock speed | 2.7 GHz | vs | 2.2 GHz | Around 25% higher turbo clock speed | |||
|---|---|---|---|---|---|---|---|
| Higher clock speed | 2.4 GHz | vs | 2.2 GHz | Around 10% higher clock speed | |||
| Better PassMark (Single core) score | 1,441 | vs | 1,087 | Around 35% better PassMark (Single core) score | |||
| Better PassMark score | 6,980 | vs | 4,700 | Around 50% better PassMark score | |||
| Better performance per dollar | 0.81 pt/$ | vs | 0.67 pt/$ | More than 20% better performance per dollar | |||
| Slightly better overclocked clock speed (Air) | 2.4 GHz | vs | 2.2 GHz | Around 10% better overclocked clock speed (Air) | |||
| Slightly better overclocked clock speed (Water) | 2.4 GHz | vs | 2.2 GHz | Around 10% better overclocked clock speed (Water) | |||
| |||||||
| Lower typical power consumption | 28.44W | vs | 36.56W | More than 20% lower typical power consumption | |||
| Better performance per watt | 4.49 pt/W | vs | 3.57 pt/W | More than 25% better performance per watt | |||
| Lower annual home energy cost | 8.43 $/year | vs | 10.84 $/year | More than 20% lower annual home energy cost | |||
| Lower annual commercial energy cost | 30.66 $/year | vs | 39.42 $/year | More than 20% lower annual commercial energy cost | |||
Report a correction
Benchmarks Real world tests of Xeon D-1521 vs D-1518
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Xeon D-1521 | vs | D-1518 |
|---|---|---|---|
| Clock speed | 2.4 GHz | 2.2 GHz | |
| Turbo clock speed | 2.7 GHz | 2.2 GHz | |
| Cores | Quad core | Quad core | |
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| AES | |||
| AVX | |||
| AVX 2.0 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 45W | 35W | |
| Annual home energy cost | 10.84 $/year | 8.43 $/year | |
| Annual commercial energy cost | 39.42 $/year | 30.66 $/year | |
| Performance per watt | 3.57 pt/W | 4.49 pt/W | |
| Typical power consumption | 36.56W | 28.44W | |
bus | |||
| Architecture | FSB | FSB | |
| Number of links | 1 | 1 | |
details | Xeon D-1521 | vs | D-1518 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 8 | 8 | |
| Manufacture process | 14 nm | 14 nm | |
| Max CPUs | 1 | 1 | |
overclocking | |||
| Overclocked clock speed | 2.4 GHz | 2.2 GHz | |
| Overclocked clock speed (Water) | 2.4 GHz | 2.2 GHz | |
| Overclocked clock speed (Air) | 2.4 GHz | 2.2 GHz | |
integrated graphics | |||
| GPU | None | None | |
| Label | N/A | N/A | |
| Latest DirectX | N/A | N/A | |
| Number of displays supported | N/A | N/A | |
| GPU clock speed | N/A | N/A | |
| Turbo clock speed | N/A | N/A | |
| 3DMark06 | N/A | N/A | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3 | |||
| Channels | Dual Channel | Dual Channel | |
| Supports ECC | Yes | Yes | |
| Maximum bandwidth | 12,800 MB/s | 12,800 MB/s | |
| Maximum memory size | 131,072 MB | 131,072 MB | |
 Intel Xeon D-1521  Report a correction |  Intel Xeon D-1518 Report a correction |
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