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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 1 MB 8x 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 0.25 MB/core 8x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Core i7 920

Reasons to consider the
Intel Core i7 920

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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 2.66 GHz vs 2.13 GHz Around 25% higher clock speed
Significantly better overclocked clock speed (Air) 4.22 GHz vs 2.91 GHz More than 45% better overclocked clock speed (Air)
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Water) 4.24 GHz vs 2.67 GHz Around 60% better overclocked clock speed (Water)

Features Key features of the Xeon 5300 E5330  vs Core i7 920 

clock speed

Xeon 5300 E5330
2.13 GHz
Core i7 920
2.66 GHz

L2 cache

overclocked clock speed (air)

Xeon 5300 E5330
2.91 GHz
Core i7 920
4.22 GHz

overclocked clock speed (water)

Xeon 5300 E5330
2.67 GHz
Core i7 920
4.24 GHz

Specifications Full list of technical specs

summary

Xeon 5300 E5330  vs
Core i7 920 
Clock speed 2.13 GHz 2.66 GHz
Cores Quad core Quad core
Socket type
LGA 771
LGA 1366

features

Has a NX bit Yes Yes
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

bus

Clock speed 1,066 MHz 2,400 MHz

details

Xeon 5300 E5330  vs
Core i7 920 
Threads 4 8
L2 cache 8 MB 1 MB
L2 cache per core 2 MB/core 0.25 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 2.91 GHz 4.22 GHz
Overclocked clock speed (Water) 2.67 GHz 4.24 GHz
Overclocked clock speed (Air) 2.91 GHz 4.22 GHz

power consumption

Typical power consumption N/A 135.63W
Intel Xeon 5300 E5330
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Intel Core i7 920
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