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Differences What are the advantages of each

Front view of Intel Xeon X3430

Reasons to consider the
Intel Xeon X3430

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Much more l3 cache 8 MB vs 4 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
Higher clock speed 2.4 GHz vs 2.26 GHz More than 5% higher clock speed
Higher turbo clock speed 2.8 GHz vs 2.53 GHz More than 10% higher turbo clock speed
Much better overclocked clock speed (Air) 3.51 GHz vs 2.27 GHz Around 55% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.12 GHz vs 2.27 GHz More than 80% better overclocked clock speed (Water)
Supports more RAM 32,768 MB vs 16,773.12 MB Supports more than 95% more RAM
Front view of Intel Xeon L3406

Reasons to consider the
Intel Xeon L3406

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Much lower typical power consumption 24.38W vs 77.19W 3.2x lower typical power consumption
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual commercial energy cost 26.28 $/year vs 83.22 $/year 3.2x lower annual commercial energy cost
Much lower annual home energy cost 7.23 $/year vs 22.89 $/year 3.2x lower annual home energy cost
Newer Mar, 2010 vs Sep, 2009 Release date 6 months later

Benchmarks Real world tests of Xeon X3430 vs L3406

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X3430
5,273
Xeon L3406
3,657

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X3430
1,653
Xeon L3406
1,697

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3430
109,200 MB/s
Xeon L3406
155.1 MB/s

Specifications Full list of technical specs

summary

Xeon X3430  vs
L3406 
Clock speed 2.4 GHz 2.26 GHz
Turbo clock speed 2.8 GHz 2.53 GHz
Cores Quad core Dual core
Socket type
LGA 1156

features

Has a NX bit Yes Yes
Supports trusted computing 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

power consumption

TDP 95W 30W
Annual home energy cost 22.89 $/year 7.23 $/year
Annual commercial energy cost 83.22 $/year 26.28 $/year
Performance per watt 1.49 pt/W 2.57 pt/W
Typical power consumption 77.19W 24.38W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 21,333.32 MB/s 17,066.66 MB/s
Maximum memory size 32,768 MB 16,773.12 MB

details

Xeon X3430  vs
L3406 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Transistor count 774,000,000 382,000,000
Max CPUs 1 1
Clock multiplier 18 17
Voltage range 0.65 - 1.4V 0.65 - 1.4V
Operating temperature Unknown - 72.7°C Unknown - 53.9°C

overclocking

Overclocked clock speed 3.51 GHz 2.27 GHz
Overclocked clock speed (Water) 4.12 GHz 2.27 GHz
Overclocked clock speed (Air) 3.51 GHz 2.27 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 DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 2,500 MT/s
Intel Xeon X3430
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Intel Xeon L3406
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