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Intel Xeon D-1540

Front view of Intel Xeon D-1540
Front view of Intel Xeon D-1520

Intel Xeon D-1520

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Differences What are the advantages of each

Front view of Intel Xeon D-1540

Reasons to consider the
Intel Xeon D-1540

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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
Front view of Intel Xeon D-1520

Reasons to consider the
Intel Xeon D-1520

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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
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Intel Xeon D-1520
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