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Differences What are the advantages of each

Front view of Intel Xeon X3323

Reasons to consider the
Intel Xeon X3323

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 65W vs 139.6W 2.1x lower typical power consumption
Much more l2 cache per core 1.5 MB/core vs 0.25 MB/core 6x more l2 cache per core
Much lower annual home energy cost 19.27 $/year vs 49.49 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 70.08 $/year vs 138.93 $/year Around 50% lower annual commercial energy cost
Front view of Intel Core i7 3820

Reasons to consider the
Intel Core i7 3820

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Significantly higher clock speed 3.6 GHz vs 2.5 GHz Around 45% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly better PassMark (Single core) score 1,943 vs 1,061 Around 85% better PassMark (Single core) score
Significantly better PassMark score 8,998 vs 3,159 More than 2.8x better PassMark score
Significantly better overclocked clock speed (Air) 4.68 GHz vs 3.37 GHz Around 40% better overclocked clock speed (Air)
Significantly better performance per watt 6.18 pt/W vs 1.67 pt/W Around 3.8x better performance per watt
More threads 8 vs 4 Twice as many threads
Newer Feb, 2012 vs Mar, 2008 Release date over 4 years later
Much better overclocked clock speed (Water) 4.71 GHz vs 2.5 GHz Around 90% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon X3323 vs Core i7 3820

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X3323
4,644
Core i7 3820
12,538

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X3323
1,391
Core i7 3820
3,098

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3323
107,200 MB/s
Core i7 3820
2,500,000 MB/s

PassMark Data courtesy Passmark

Xeon X3323
3,159
Core i7 3820
8,998

PassMark (Single Core)

Xeon X3323
1,061
Core i7 3820
1,943

Specifications Full list of technical specs

summary

Xeon X3323  vs
Core i7 3820 
Clock speed 2.5 GHz 3.6 GHz
Cores Quad core Quad core
Socket type
LGA 771
LGA 2011

features

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

power consumption

TDP 80W 130W
Annual home energy cost 19.27 $/year 49.49 $/year
Annual commercial energy cost 70.08 $/year 138.93 $/year
Performance per watt 1.67 pt/W 6.18 pt/W
Typical power consumption 65W 139.6W

details

Xeon X3323  vs
Core i7 3820 
Architecture x86-64 x86-64
Threads 4 8
L2 cache 6 MB 1 MB
L2 cache per core 1.5 MB/core 0.25 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.37 GHz 4.68 GHz
Overclocked clock speed (Water) 2.5 GHz 4.71 GHz
Overclocked clock speed (Air) 3.37 GHz 4.68 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus

Architecture FSB DMI 2.0
Number of links 1 1
Intel Xeon X3323
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Intel Core i7 3820
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