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Intel Xeon D-1540

CPUBoss Winner
Front view of Intel Xeon D-1540

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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More cores 8 vs 4 Twice as many cores; run more applications at once
More threads 16 vs 8 Twice as many threads
Front view of Intel Xeon D-1521

Reasons to consider the
Intel Xeon D-1521

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Higher clock speed 2.4 GHz vs 2 GHz Around 20% higher clock speed
Significantly better geekbench 3 Multi-Core score 5,222 vs 2,291 More than 2.2x better geekbench 3 Multi-Core score
Much better performance per dollar 0.81 pt/$ vs 0.28 pt/$ More than 2.8x better performance per dollar
Better overclocked clock speed (Air) 2.4 GHz vs 2 GHz Around 20% better overclocked clock speed (Air)
Newer Oct, 2015 vs Mar, 2015 Release date 6 months later
Better overclocked clock speed (Water) 2.4 GHz vs 2 GHz Around 20% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon D-1540 vs D-1521

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon D-1540
2,291
Xeon D-1521
5,222

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon D-1540
2,292
Xeon D-1521
2,726

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon D-1540
2,290 MB/s
Xeon D-1521
3,140 MB/s

PassMark Data courtesy Passmark

Xeon D-1540
10,573
Xeon D-1521
6,980

PassMark (Single Core)

Xeon D-1540
1,344
Xeon D-1521
1,441

Specifications Full list of technical specs

summary

Xeon D-1540  vs
D-1521 
Clock speed 2 GHz 2.4 GHz
Turbo clock speed 2.6 GHz 2.7 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 3.57 pt/W
Typical power consumption 36.56W 36.56W

bus

Architecture DMI 2.0 FSB
Number of links 1 1

details

Xeon D-1540  vs
D-1521 
Architecture x86-64 x86-64
Threads 16 8
Manufacture process 14 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2 GHz 2.4 GHz
Overclocked clock speed (Water) 2 GHz 2.4 GHz
Overclocked clock speed (Air) 2 GHz 2.4 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-1521
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