CPUBoss Review Our evaluation of 1620 v2 vs D-1520 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

Differences What are the advantages of each

Front view of Intel Xeon E5 1620 v2

Reasons to consider the
Intel Xeon E5 1620 v2

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Much higher clock speed 3.7 GHz vs 2.2 GHz Around 70% higher clock speed
Much higher turbo clock speed 3.9 GHz vs 2.6 GHz Around 50% higher turbo clock speed
Much more l3 cache 10 MB vs 6 MB More than 65% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Air) 4.21 GHz vs 2.2 GHz More than 90% better overclocked clock speed (Air)
Much better performance per watt 13.06 pt/W vs 4.65 pt/W More than 2.8x better performance per watt
Much better performance per dollar 5.78 pt/$ vs 1.05 pt/$ Around 5.5x better performance per dollar
Supports more RAM 262,144 MB vs 131,072 MB Supports 2x more RAM
Much more l3 cache per core 2.5 MB/core vs 1.5 MB/core More than 65% more l3 cache per core
Much better overclocked clock speed (Water) 4.03 GHz vs 2.2 GHz Around 85% better overclocked clock speed (Water)
Front view of Intel Xeon D-1520

Reasons to consider the
Intel Xeon D-1520

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Much lower typical power consumption 36.56W vs 105.63W 2.9x lower typical power consumption
Much higher Maximum operating temperature 80 °C vs 70 °C Around 15% higher Maximum operating temperature
Newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower annual commercial energy cost 39.42 $/year vs 113.88 $/year 2.9x lower annual commercial energy cost
Much lower annual home energy cost 10.84 $/year vs 31.32 $/year 2.9x lower annual home energy cost
Newer Mar, 2015 vs Jul, 2013 Release date over 1 years later

Features Key features of the Xeon E5 1620 v2  vs D-1520 

clock speed

Xeon E5 1620 v2
3.7 GHz
Xeon D-1520
2.2 GHz

turbo clock speed

Xeon E5 1620 v2
3.9 GHz
Xeon D-1520
2.6 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5 1620 v2
4.21 GHz
Xeon D-1520
2.2 GHz

overclocked clock speed (water)

Xeon E5 1620 v2
4.03 GHz
Xeon D-1520
2.2 GHz

Specifications Full list of technical specs

summary

Xeon E5 1620 v2  vs
D-1520 
Clock speed 3.7 GHz 2.2 GHz
Turbo clock speed 3.9 GHz 2.6 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
SSE2
F16C
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling No Yes

power consumption

TDP 130W 45W
Annual home energy cost 31.32 $/year 10.84 $/year
Annual commercial energy cost 113.88 $/year 39.42 $/year
Performance per watt 13.06 pt/W 4.65 pt/W
Typical power consumption 105.63W 36.56W

bus

Number of links 0 1

details

Xeon E5 1620 v2  vs
D-1520 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 10 MB 6 MB
L3 cache per core 2.5 MB/core 1.5 MB/core
Manufacture process 22 nm 14 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 80°C

overclocking

Overclocked clock speed 4.21 GHz 2.2 GHz
Overclocked clock speed (Water) 4.03 GHz 2.2 GHz
Overclocked clock speed (Air) 4.21 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 Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum memory size 262,144 MB 131,072 MB
Intel Xeon E5 1620 v2
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Intel Xeon D-1520
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