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Differences What are the advantages of each

Front view of Intel Xeon 5300 E5330

Reasons to consider the
Intel Xeon 5300 E5330

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 2 MB/core vs 1 MB/core 2x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
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 Pentium E5400

Reasons to consider the
Intel Pentium E5400

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.7 GHz vs 2.13 GHz More than 25% higher clock speed
Significantly better overclocked clock speed (Air) 3.75 GHz vs 2.91 GHz Around 30% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.49 GHz vs 2.67 GHz Around 70% better overclocked clock speed (Water)

Features Key features of the Xeon 5300 E5330  vs Pentium E5400 

clock speed

Xeon 5300 E5330
2.13 GHz
Pentium E5400
2.7 GHz

L2 cache

overclocked clock speed (air)

Xeon 5300 E5330
2.91 GHz
Pentium E5400
3.75 GHz

overclocked clock speed (water)

Xeon 5300 E5330
2.67 GHz
Pentium E5400
4.49 GHz

Specifications Full list of technical specs

summary

Xeon 5300 E5330  vs
Pentium E5400 
Clock speed 2.13 GHz 2.7 GHz
Cores Quad core Dual core
Socket type
LGA 771
LGA 775

features

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

bus

Clock speed 1,066 MHz 800 MHz

details

Xeon 5300 E5330  vs
Pentium E5400 
Threads 4 2
L2 cache 8 MB 2 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 2.91 GHz 3.75 GHz
Overclocked clock speed (Water) 2.67 GHz 4.49 GHz
Overclocked clock speed (Air) 2.91 GHz 3.75 GHz

power consumption

Typical power consumption N/A 52.81W
Intel Xeon 5300 E5330
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Intel Pentium E5400
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