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Differences What are the advantages of each

Front view of Intel Xeon L5518

Reasons to consider the
Intel Xeon L5518

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More l3 cache 8 MB vs 3 MB Around 2.8x more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 8 vs 2 6 more threads
More cores 4 vs 2 Twice as many cores; run more applications at once
Significantly higher Maximum operating temperature 85 °C vs 69.1 °C Around 25% higher Maximum operating temperature
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Better overclocked clock speed (Air) 3.71 GHz vs 3.21 GHz More than 15% better overclocked clock speed (Air)
Slightly lower typical power consumption 48.75W vs 52.81W Around 10% lower typical power consumption
Supports more RAM 147,456 MB vs 32,768 MB Supports 4.5x more RAM
Slightly lower annual home energy cost 14.45 $/year vs 15.66 $/year Around 10% lower annual home energy cost
Slightly lower annual commercial energy cost 52.56 $/year vs 56.94 $/year Around 10% lower annual commercial energy cost
Front view of Intel Pentium G870

Reasons to consider the
Intel Pentium G870

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Significantly higher clock speed 3.1 GHz vs 2.13 GHz More than 45% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Newer Jun, 2012 vs Mar, 2009 Release date over 3 years later
Significantly better overclocked clock speed (Water) 3.1 GHz vs 2.13 GHz More than 45% better overclocked clock speed (Water)

Features Key features of the Xeon L5518  vs Pentium G870 

clock speed

Xeon L5518
2.13 GHz
Pentium G870
3.1 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon L5518
3.71 GHz
Pentium G870
3.21 GHz

overclocked clock speed (water)

Xeon L5518
2.13 GHz
Pentium G870
3.1 GHz

TDP

Specifications Full list of technical specs

summary

Xeon L5518  vs
Pentium G870 
Clock speed 2.13 GHz 3.1 GHz
Cores Quad core Dual core
Socket type
LGA 1366
LGA 1155

features

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

power consumption

TDP 60W 65W
Annual home energy cost 14.45 $/year 15.66 $/year
Annual commercial energy cost 52.56 $/year 56.94 $/year
Typical power consumption 48.75W 52.81W

bus

Architecture QPI DMI
Number of links 2 1
Transfer rate 5,860 MT/s 5,000 MT/s

details

Xeon L5518  vs
Pentium G870 
Architecture x86-64 x86-64
Threads 8 2
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 2 1
Operating temperature Unknown - 85°C Unknown - 69.1°C

overclocking

Overclocked clock speed 3.71 GHz 3.21 GHz
Overclocked clock speed (Water) 2.13 GHz 3.1 GHz
PassMark (Overclocked) 1,531.9 2,148.8
Overclocked clock speed (Air) 3.71 GHz 3.21 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Dual Channel
Maximum bandwidth 25,599.99 MB/s 21,333.32 MB/s
Maximum memory size 147,456 MB 32,768 MB
Intel Xeon L5518
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Intel Pentium G870
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