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Differences What are the advantages of each

Front view of Intel Xeon 5300 E5340

Reasons to consider the
Intel Xeon 5300 E5340

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Much more l2 cache 8 MB vs 4 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Front view of Intel Xeon 5150

Reasons to consider the
Intel Xeon 5150

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Significantly higher clock speed 2.66 GHz vs 2.4 GHz More than 10% higher clock speed
Much better overclocked clock speed (Water) 3.75 GHz vs 2.4 GHz More than 55% better overclocked clock speed (Water)
Better overclocked clock speed (Air) 3.14 GHz vs 3.07 GHz Almost the same

Features Key features of the Xeon 5300 E5340  vs 5150 

clock speed

Xeon 5300 E5340
2.4 GHz
Xeon 5150
2.66 GHz

L2 cache

overclocked clock speed (air)

Xeon 5300 E5340
3.07 GHz
Xeon 5150
3.14 GHz

overclocked clock speed (water)

Xeon 5300 E5340
2.4 GHz
Xeon 5150
3.75 GHz

Specifications Full list of technical specs

summary

Xeon 5300 E5340  vs
5150 
Clock speed 2.4 GHz 2.66 GHz
Cores Quad core Dual core
Socket type
LGA 771

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
MMX
SSE
SSE2
SSE3
Supports dynamic frequency scaling Yes Yes

bus

Clock speed 1,066 MHz 1,333 MHz

details

Xeon 5300 E5340  vs
5150 
Threads 4 2
L2 cache 8 MB 4 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 65 nm 65 nm
Max CPUs 2 2

overclocking

Overclocked clock speed 3.07 GHz 3.14 GHz
Overclocked clock speed (Water) 2.4 GHz 3.75 GHz
Overclocked clock speed (Air) 3.07 GHz 3.14 GHz

power consumption

Typical power consumption N/A 52.81W
Intel Xeon 5300 E5340
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Intel Xeon 5150
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