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Differences What are the advantages of each

Front view of Intel Xeon E5-1620

Reasons to consider the
Intel Xeon E5-1620

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Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Newer Mar, 2012 vs Jan, 2005 Release date over 7 years later
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 4 vs 1 3 more cores; run more applications at once
More threads 8 vs 2 6 more threads
Better overclocked clock speed (Air) 3.93 GHz vs 3.59 GHz Around 10% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.7 GHz vs 4.18 GHz More than 10% better overclocked clock speed (Water)
Front view of Intel Pentium 552

Reasons to consider the
Intel Pentium 552

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Much lower typical power consumption 71.5W vs 105.63W More than 30% lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Higher Maximum operating temperature 75 °C vs 64 °C More than 15% higher Maximum operating temperature
Much lower annual home energy cost 21.2 $/year vs 31.32 $/year More than 30% lower annual home energy cost
Much lower annual commercial energy cost 77.09 $/year vs 113.88 $/year More than 30% lower annual commercial energy cost

Features Key features of the Xeon E5-1620  vs Pentium 552 

clock speed

Xeon E5-1620
3.6 GHz
Pentium 552
3.46 GHz

L2 cache

overclocked clock speed (air)

Xeon E5-1620
3.93 GHz
Pentium 552
3.59 GHz

overclocked clock speed (water)

Xeon E5-1620
4.7 GHz
Pentium 552
4.18 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5-1620  vs
Pentium 552 
Clock speed 3.6 GHz 3.46 GHz
Cores Quad core Single core
Socket type
LGA 2011
478

features

Has a NX bit Yes No
Supports trusted computing Yes No
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 88W
Annual home energy cost 31.32 $/year 21.2 $/year
Annual commercial energy cost 113.88 $/year 77.09 $/year
Typical power consumption 105.63W 71.5W

bus

Architecture QPI FSB
Number of links 0 1
Clock speed 0 MHz 533 MHz

details

Xeon E5-1620  vs
Pentium 552 
Architecture x86-64 x86
Threads 8 2
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 1
Clock multiplier 38 26
Voltage range 0.6 - 1.35V 1.25 - 1.4V
Operating temperature Unknown - 64°C Unknown - 75°C

overclocking

Overclocked clock speed 3.93 GHz 3.59 GHz
Overclocked clock speed (Water) 4.7 GHz 4.18 GHz
Overclocked clock speed (Air) 3.93 GHz 3.59 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
Intel Xeon E5-1620
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Intel Pentium 552
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