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| Intel Xeon D-1540 vs D-1520 |
Released March, 2015
Intel Xeon D-1540
- 2 GHz
- Octa core
Reasons to buy the Intel Xeon D-1540
![]() | Much more l3 cache 12 MB | ![]() | Much more l2 cache 2 MB |
![]() | More cores 8 | ![]() | More threads 16 |
VS
Released March, 2015
Intel Xeon D-1520
- 2.2 GHz
- Quad core
Reasons to buy the D-1520
![]() | Significantly higher clock speed 2.2 GHz | ![]() | Much better PassMark (Single core) score 1,398 |
![]() | Much better performance per watt 4.65 pt/W | ![]() | Much better performance per dollar 1.05 pt/$ |
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| ![]() | Intel Xeon D-1520CPUBoss Winner |
Differences What are the advantages of each
| |||||||
Much more l3 cache | 12 MB | vs | 6 MB | 2x more l3 cache; more data can be stored in the l3 cache for quick access later | |||
---|---|---|---|---|---|---|---|
Much more l2 cache | 2 MB | vs | 1 MB | 2x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
More cores | 8 | vs | 4 | Twice as many cores; run more applications at once | |||
More threads | 16 | vs | 8 | Twice as many threads | |||
Much better PassMark score | 10,573 | vs | 6,396 | More than 65% better PassMark score | |||
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Significantly higher clock speed | 2.2 GHz | vs | 2 GHz | More than 10% higher clock speed | |||
Much better PassMark (Single core) score | 1,398 | vs | 1,344 | Around 5% better PassMark (Single core) score | |||
Much better performance per watt | 4.65 pt/W | vs | 3.64 pt/W | Around 30% better performance per watt | |||
Much better performance per dollar | 1.05 pt/$ | vs | 0.28 pt/$ | Around 3.8x better performance per dollar | |||
Significantly better overclocked clock speed (Air) | 2.2 GHz | vs | 2 GHz | More than 10% better overclocked clock speed (Air) | |||
Significantly better overclocked clock speed (Water) | 2.2 GHz | vs | 2 GHz | More than 10% better overclocked clock speed (Water) |
Benchmarks Real world tests of Xeon D-1540 vs D-1520
PassMark Data courtesy Passmark
Xeon D-1540
10,573
Xeon D-1520
6,396
PassMark (Single Core)
Xeon D-1540
1,344
Xeon D-1520
1,398
Specifications Full list of technical specs
summary | Xeon D-1540 | vs | D-1520 |
---|---|---|---|
Clock speed | 2 GHz | 2.2 GHz | |
Turbo clock speed | 2.6 GHz | 2.6 GHz | |
Cores | Octa 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 | 45W | |
Annual home energy cost | 10.84 $/year | 10.84 $/year | |
Annual commercial energy cost | 39.42 $/year | 39.42 $/year | |
Performance per watt | 3.64 pt/W | 4.65 pt/W | |
Typical power consumption | 36.56W | 36.56W | |
bus | |||
Architecture | DMI 2.0 | DMI 2.0 | |
Number of links | 1 | 1 |
details | Xeon D-1540 | vs | D-1520 |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 16 | 8 | |
L2 cache | 2 MB | 1 MB | |
L2 cache per core | 0.25 MB/core | 0.25 MB/core | |
L3 cache | 12 MB | 6 MB | |
L3 cache per core | 1.5 MB/core | 1.5 MB/core | |
Manufacture process | 14 nm | 14 nm | |
Max CPUs | 1 | 1 | |
Operating temperature | Unknown - 80°C | Unknown - 80°C | |
overclocking | |||
Overclocked clock speed | 2 GHz | 2.2 GHz | |
Overclocked clock speed (Water) | 2 GHz | 2.2 GHz | |
Overclocked clock speed (Air) | 2 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 | |
Channels | Dual Channel | Dual Channel | |
Supports ECC | Yes | Yes | |
Maximum memory size | 131,072 MB | 131,072 MB |
Intel Xeon D-1540 ![]() | Intel Xeon D-1520 ![]() |
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