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Differences What are the advantages of each

Front view of Intel Xeon X3450

Reasons to consider the
Intel Xeon X3450

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Lower typical power consumption 77.19W vs 93.6W Around 20% lower typical power consumption
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
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
Better overclocked clock speed (Air) 4.08 GHz vs 3.54 GHz More than 15% better overclocked clock speed (Air)
Lower annual home energy cost 22.89 $/year vs 27.75 $/year Around 20% lower annual home energy cost
Lower annual commercial energy cost 83.22 $/year vs 100.92 $/year Around 20% lower annual commercial energy cost
Front view of Intel Core i5 2400

Reasons to consider the
Intel Core i5 2400

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Much better performance per dollar 4.58 pt/$ vs 0.65 pt/$ More than 7x 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
Higher clock speed 3.1 GHz vs 2.66 GHz More than 15% higher clock speed
Slightly higher turbo clock speed 3.4 GHz vs 3.2 GHz More than 5% higher turbo clock speed
Much better performance per watt 8.14 pt/W vs 1.79 pt/W More than 4.5x better performance per watt
Better PassMark (Single core) score 1,742 vs 1,172 Around 50% better PassMark (Single core) score
Slightly better PassMark score 5,901 vs 4,912 More than 20% better PassMark score
Newer Jan, 2011 vs Sep, 2009 Release date over 1 years later
Significantly better overclocked clock speed (Water) 3.51 GHz vs 2.67 GHz More than 30% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon X3450 vs Core i5 2400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X3450
6,945
Core i5 2400
8,298

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X3450
1,782
Core i5 2400
2,638

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3450
107,000 MB/s
Core i5 2400
2,260,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X3450
7,161
Core i5 2400
8,258

GeekBench (64-bit) Data courtesy Primate Labs

Xeon X3450
7,860
Core i5 2400
9,093

GeekBench

Xeon X3450
8,257
Core i5 2400
10,769

PassMark Data courtesy Passmark

Xeon X3450
4,912
Core i5 2400
5,901

PassMark (Single Core)

Xeon X3450
1,172
Core i5 2400
1,742

Specifications Full list of technical specs

summary

Xeon X3450  vs
Core i5 2400 
Clock speed 2.66 GHz 3.1 GHz
Turbo clock speed 3.2 GHz 3.4 GHz
Cores Quad core Quad core
Socket type
LGA 1156
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
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 95W 95W
Annual home energy cost 22.89 $/year 27.75 $/year
Annual commercial energy cost 83.22 $/year 100.92 $/year
Performance per watt 1.79 pt/W 8.14 pt/W
Typical power consumption 77.19W 93.6W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 5,000 MT/s

details

Xeon X3450  vs
Core i5 2400 
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 31
Operating temperature Unknown - 72.7°C Unknown - 72.6°C

overclocking

Overclock popularity 5 63
Overclocked clock speed 4.08 GHz 3.54 GHz
Overclocked clock speed (Water) 2.67 GHz 3.51 GHz
Overclocked clock speed (Air) 4.08 GHz 3.54 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 Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Xeon X3450
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Intel Core i5 2400
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