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Differences What are the advantages of each

Front view of Intel Core i7 960

Reasons to consider the
Intel Core i7 960

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Higher clock speed 3.2 GHz vs 2.5 GHz Around 30% higher clock speed
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
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
Much better overclocked clock speed (Air) 4.35 GHz vs 2.5 GHz Around 75% better overclocked clock speed (Air)
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Water) 4.28 GHz vs 2.5 GHz More than 70% better overclocked clock speed (Water)
Front view of Intel Core i3 3115C

Reasons to consider the
Intel Core i3 3115C

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Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 20.31W vs 105.63W 5.2x lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 67.9 °C More than 45% higher Maximum operating temperature
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Newer Jul, 2013 vs Oct, 2009 Release date over 3 years later
Much lower annual home energy cost 6.02 $/year vs 31.32 $/year 5.2x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 113.88 $/year 5.2x lower annual commercial energy cost

Features Key features of the Core i7 960  vs i3 3115C 

clock speed

Core i7 960
3.2 GHz
Core i3 3115C
2.5 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i7 960
4.35 GHz
Core i3 3115C
2.5 GHz

overclocked clock speed (water)

Core i7 960
4.28 GHz
Core i3 3115C
2.5 GHz

TDP

Specifications Full list of technical specs

summary

Core i7 960  vs
i3 3115C 
Clock speed 3.2 GHz 2.5 GHz
Cores Quad core Dual core
Socket type
LGA 1366
BGA 1284
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing No 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 No

power consumption

TDP 130W 25W
Annual home energy cost 31.32 $/year 6.02 $/year
Annual commercial energy cost 113.88 $/year 21.9 $/year
Typical power consumption 105.63W 20.31W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3L-1333
DDR3
DDR3L-1066
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 25,599.99 MB/s 21,333.32 MB/s
Maximum memory size 24,576 MB 32,768 MB

details

Core i7 960  vs
i3 3115C 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 1 1
Clock multiplier 24 25
Voltage range 0.8 - 1.38V 0.75 - 1.3V
Operating temperature Unknown - 67.9°C 0 - 100°C

overclocking

Overclocked clock speed 4.35 GHz 2.5 GHz
Overclocked clock speed (Water) 4.28 GHz 2.5 GHz
Overclocked clock speed (Air) 4.35 GHz 2.5 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 QPI DMI 2.0
Number of links 1 1
Transfer rate 4,800 MT/s 5,000 MT/s
Intel Core i7 960
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Intel Core i3 3115C
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