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Differences What are the advantages of each

Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Much higher clock speed 4 GHz vs 1.73 GHz More than 2.2x higher clock speed
Much newer manufacturing process 22 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
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 virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 4.63 GHz vs 1.73 GHz Around 2.8x better overclocked clock speed (Air)
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) 4.8 GHz vs 1.73 GHz More than 2.8x better overclocked clock speed (Water)
Front view of Intel Core Solo T1250

Reasons to consider the
Intel Core Solo T1250

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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 more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core
Much lower typical power consumption 25.19W vs 71.5W 2.8x lower typical power consumption
Much lower annual home energy cost 7.47 $/year vs 21.2 $/year 2.8x lower annual home energy cost
Much lower annual commercial energy cost 27.16 $/year vs 77.09 $/year 2.8x lower annual commercial energy cost

Features Key features of the Core i7 4790K  vs Solo T1250 

clock speed

L2 cache

overclocked clock speed (air)

Core i7 4790K
4.63 GHz
Core Solo T1250
1.73 GHz

overclocked clock speed (water)

Core i7 4790K
4.8 GHz
Core Solo T1250
1.73 GHz

Specifications Full list of technical specs

summary

Core i7 4790K  vs
Solo T1250 
Clock speed 4 GHz 1.73 GHz
Cores Quad core Single core

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes No
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 88W 31W
Annual home energy cost 21.2 $/year 7.47 $/year
Annual commercial energy cost 77.09 $/year 27.16 $/year
Typical power consumption 71.5W 25.19W

bus

Architecture DMI 2.0 FSB
Number of links 0 1

details

Core i7 4790K  vs
Solo T1250 
Architecture x86-64 x86
Threads 8 1
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 2 MB/core
Manufacture process 22 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.63 GHz 1.73 GHz
Overclocked clock speed (Water) 4.8 GHz 1.73 GHz
Overclocked clock speed (Air) 4.63 GHz 1.73 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4600 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,250 MHz N/A

memory controller

Memory controller Built-in Built-in
Supports ECC No No
Intel Core i7 4790K
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Intel Core Solo T1250
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