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Differences What are the advantages of each

Front view of Intel Xeon X3320

Reasons to consider the
Intel Xeon X3320

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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 more l2 cache per core 1.5 MB/core vs 0.25 MB/core 6x more l2 cache per core
Much lower typical power consumption 77.19W vs 112.55W More than 30% lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 41.29 $/year Around 45% lower annual home energy cost
Significantly lower annual commercial energy cost 83.22 $/year vs 110.03 $/year Around 25% lower annual commercial energy cost
Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Significantly higher clock speed 3.3 GHz vs 2.5 GHz More than 30% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
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 1,863 vs 1,075 Around 75% better PassMark (Single core) score
Much better overclocked clock speed (Air) 4.98 GHz vs 3.38 GHz Around 50% better overclocked clock speed (Air)
Much better performance per watt 6.79 pt/W vs 1.64 pt/W Around 4.2x better performance per watt
Better PassMark score 6,383 vs 3,335 More than 90% better PassMark score
Newer Jan, 2011 vs Jan, 2008 Release date over 3 years later
Much better overclocked clock speed (Water) 4.88 GHz vs 2.5 GHz More than 95% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon X3320 vs Core i5 2500K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3320
134,000 MB/s
Core i5 2500K
2,530,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X3320  vs
Core i5 2500K 
Clock speed 2.5 GHz 3.3 GHz
Cores Quad core Quad core
Socket type
LGA 775
LGA 1155

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
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 95W
Annual home energy cost 22.89 $/year 41.29 $/year
Annual commercial energy cost 83.22 $/year 110.03 $/year
Performance per watt 1.64 pt/W 6.79 pt/W
Typical power consumption 77.19W 112.55W

bus

Architecture FSB DMI
Number of links 1 1

details

Xeon X3320  vs
Core i5 2500K 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 6 MB 1 MB
L2 cache per core 1.5 MB/core 0.25 MB/core
Manufacture process 45 nm 32 nm
Transistor count 456,000,000 1,160,000,000
Max CPUs 1 1
Clock multiplier 7 33
Voltage range 0.85 - 1.36V 1.2 - 1.5V
Operating temperature Unknown - 71.4°C 5 - 72.6°C

overclocking

Overclocked clock speed 3.38 GHz 4.98 GHz
Overclocked clock speed (Water) 2.5 GHz 4.88 GHz
PassMark (Overclocked) 1,364.9 5,433.6
Overclocked clock speed (Air) 3.38 GHz 4.98 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 3000
Latest DirectX N/A 10.1
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,100 MHz
3DMark06 N/A 5,275
Intel Xeon X3320
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Intel Core i5 2500K
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