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

No winner declared

Too close to call

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VS

Intel Xeon D-1521

CPUBoss Winner
Front view of Intel Xeon D-1521

Differences What are the advantages of each

Front view of Intel Xeon D-1521

Reasons to consider the
Intel Xeon D-1521

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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)
Front view of Intel Xeon D-1518

Reasons to consider the
Intel Xeon D-1518

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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

Benchmarks Real world tests of Xeon D-1521 vs D-1518

PassMark Data courtesy Passmark

Xeon D-1521
6,980
Xeon D-1518
4,700

PassMark (Single Core)

Xeon D-1521
1,441
Xeon D-1518
1,087

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
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Intel Xeon D-1518
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