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Intel Xeon W3520

Front view of Intel Xeon W3520
Front view of Intel Core i5 2300

Intel Core i5 2300

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Differences What are the advantages of each

Front view of Intel Xeon W3520

Reasons to consider the
Intel Xeon W3520

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Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Significantly better overclocked clock speed (Air) 4.38 GHz vs 3.29 GHz Around 35% better overclocked clock speed (Air)
More threads 8 vs 4 Twice as many threads
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Significantly better overclocked clock speed (Water) 4.46 GHz vs 3.55 GHz More than 25% better overclocked clock speed (Water)
Front view of Intel Core i5 2300

Reasons to consider the
Intel Core i5 2300

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Much better performance per dollar 3.96 pt/$ vs 0.59 pt/$ Around 6.8x better performance per dollar
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 lower typical power consumption 77.19W vs 105.63W More than 25% lower typical power consumption
Much better performance per watt 7.79 pt/W vs 1.38 pt/W Around 5.8x better performance per watt
Better PassMark (Single core) score 1,574 vs 1,196 More than 30% better PassMark (Single core) score
Newer Jan, 2011 vs Mar, 2009 Release date over 1 years later
Higher Maximum operating temperature 72.6 °C vs 67.9 °C More than 5% higher Maximum operating temperature
Significantly lower annual home energy cost 22.89 $/year vs 31.32 $/year More than 25% lower annual home energy cost
Significantly lower annual commercial energy cost 83.22 $/year vs 113.88 $/year More than 25% lower annual commercial energy cost

Benchmarks Real world tests of Xeon W3520 vs Core i5 2300

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon W3520
7,257
Core i5 2300
7,621

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon W3520
1,935
Core i5 2300
2,448

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon W3520
117,600 MB/s
Core i5 2300
2,070,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon W3520
6,599
Core i5 2300
7,463

GeekBench (64-bit) Data courtesy Primate Labs

Xeon W3520
7,836
Core i5 2300
7,962

GeekBench

Xeon W3520
9,166
Core i5 2300
9,767

PassMark Data courtesy Passmark

Xeon W3520
5,061
Core i5 2300
5,322

PassMark (Single Core)

Xeon W3520
1,196
Core i5 2300
1,574

Specifications Full list of technical specs

summary

 Xeon W3520  vs
Core i5 2300 
Clock speed 2.66 GHz 2.8 GHz
Turbo clock speed 2.93 GHz 3.1 GHz
Cores Quad core Quad core
Socket type
LGA 1366
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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 130W 95W
Annual home energy cost 31.32 $/year 22.89 $/year
Annual commercial energy cost 113.88 $/year 83.22 $/year
Performance per watt 1.38 pt/W 7.79 pt/W
Typical power consumption 105.63W 77.19W

bus
Architecture QPI DMI
Number of links 1 1
Transfer rate 4,800 MT/s 5,000 MT/s

details

 Xeon W3520  vs
Core i5 2300 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1
Clock multiplier 20 28
Operating temperature Unknown - 67.9°C Unknown - 72.6°C

overclocking
Overclock popularity 6 20
Overclocked clock speed 4.38 GHz 3.29 GHz
Overclocked clock speed (Water) 4.46 GHz 3.55 GHz
Overclocked clock speed (Air) 4.38 GHz 3.29 GHz

integrated graphics
GPU None GPU
Label N/A Intel® HD Graphics 2000
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,100 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,599.99 MB/s 21,333.32 MB/s
Maximum memory size 24,576 MB 32,768 MB
Intel Xeon W3520
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Intel Core i5 2300
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