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Differences What are the advantages of each

Front view of Intel Pentium 755

Reasons to consider the
Intel Pentium 755

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Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 6.09W vs 73.94W 12.1x lower typical power consumption
Much more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core
Much lower annual home energy cost 1.81 $/year vs 21.92 $/year 12.1x lower annual home energy cost
Much lower annual commercial energy cost 6.57 $/year vs 79.72 $/year 12.1x lower annual commercial energy cost
Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Much newer manufacturing process 14 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 4 GHz vs 2 GHz 2x higher clock speed
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 4.61 GHz vs 2.35 GHz More than 95% better overclocked clock speed (Air)
Newer Jul, 2015 vs May, 2004 Release date over 11 years later
More threads 8 vs 1 7 more threads
More cores 4 vs 1 3 more cores; run more applications at once
Much better overclocked clock speed (Water) 4.77 GHz vs 2 GHz Around 2.5x better overclocked clock speed (Water)

Features Key features of the Pentium 755  vs Core i7 6700K 

clock speed

L2 cache

overclocked clock speed (air)

Pentium 755
2.35 GHz
Core i7 6700K
4.61 GHz

overclocked clock speed (water)

Pentium 755
2 GHz
Core i7 6700K
4.77 GHz

TDP

Specifications Full list of technical specs

summary

Pentium 755  vs
Core i7 6700K 
Clock speed 2 GHz 4 GHz
Cores Single core Quad core

features

Has a NX bit No Yes
Supports trusted computing No No
Has virtualization support No Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 7.5W 91W
Annual home energy cost 1.81 $/year 21.92 $/year
Annual commercial energy cost 6.57 $/year 79.72 $/year
Typical power consumption 6.09W 73.94W

bus

Architecture FSB FSB
Number of links 1 0

details

Pentium 755  vs
Core i7 6700K 
Architecture x86 x86-64
Threads 1 8
L2 cache 2 MB 1 MB
L2 cache per core 2 MB/core 0.25 MB/core
Manufacture process 90 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.35 GHz 4.61 GHz
Overclocked clock speed (Water) 2 GHz 4.77 GHz
Overclocked clock speed (Air) 2.35 GHz 4.61 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 530
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,150 MHz

memory controller

Memory controller Built-in Built-in
Supports ECC No No
Intel Pentium 755
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Intel Core i7 6700K
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