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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 0.5 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of AMD Athlon II X4 640

Reasons to consider the
AMD Athlon II X4 640

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Significantly higher clock speed 3 GHz vs 2.13 GHz More than 40% higher clock speed
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Better overclocked clock speed (Air) 3.57 GHz vs 2.91 GHz Around 25% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 3.89 GHz vs 2.67 GHz More than 45% better overclocked clock speed (Water)

Features Key features of the Xeon 5300 E5330  vs Athlon II X4 640 

clock speed

L2 cache

overclocked clock speed (air)

Xeon 5300 E5330
2.91 GHz
Athlon II X4 640
3.57 GHz

overclocked clock speed (water)

Xeon 5300 E5330
2.67 GHz
Athlon II X4 640
3.89 GHz

Specifications Full list of technical specs

summary

Xeon 5300 E5330  vs
Athlon II X4 640 
Clock speed 2.13 GHz 3 GHz
Cores Quad core Quad core
Socket type
LGA 771
AM3

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

bus

Clock speed 1,066 MHz 2,000 MHz

details

Xeon 5300 E5330  vs
Athlon II X4 640 
Threads 4 4
L2 cache 8 MB 2 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 2.91 GHz 3.57 GHz
Overclocked clock speed (Water) 2.67 GHz 3.89 GHz
Overclocked clock speed (Air) 2.91 GHz 3.57 GHz

power consumption

Typical power consumption N/A 77.19W
Intel Xeon 5300 E5330
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AMD Athlon II X4 640
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