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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 turbo clock speed 4.4 GHz vs 0 GHz Compared to all cpus, 4.4 GHz turbo clock speed is just OK
Much higher clock speed 4 GHz vs 1.8 GHz Around 2.2x higher clock speed
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 22 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly more l2 cache 1 MB vs 0 MB Compared to all cpus, 1 MB l2 cache is just OK
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
More l3 cache 8 MB vs 0 MB Compared to all cpus, 8 MB l3 cache is just OK
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much more l3 cache per core 2 MB/core vs 0 MB/core Compared to all cpus, 2 MB/core l3 cache per core is just OK
Newer Apr, 2014 vs May, 2006 Release date over 7 years later
More threads 8 vs 2 6 more threads
More cores 4 vs 2 Twice as many cores; run more applications at once
More l2 cache per core 0.25 MB/core vs 0 MB/core Compared to all cpus, 0.25 MB/core l2 cache per core is just OK
Front view of AMD Turion 64 X2 56

Reasons to consider the
AMD Turion 64 X2 56

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Much lower typical power consumption 26.81W vs 71.5W 2.7x lower typical power consumption
Significantly higher Maximum operating temperature 95 °C vs 74.04 °C Around 30% higher Maximum operating temperature
Much lower annual home energy cost 7.95 $/year vs 21.2 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 28.91 $/year vs 77.09 $/year 2.7x lower annual commercial energy cost

Benchmarks Real world tests of Core i7 4790K vs Turion 64 X2 56

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

Specifications Full list of technical specs

summary

Core i7 4790K  vs
Turion 64 X2 56 
Clock speed 4 GHz 1.8 GHz
Turbo clock speed 4.4 GHz 0 GHz
Cores Quad core Dual core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
3DNow!
AES
AVX 2.0

power consumption

TDP 88W 33W
Annual home energy cost 21.2 $/year 7.95 $/year
Annual commercial energy cost 77.09 $/year 28.91 $/year
Typical power consumption 71.5W 26.81W

details

Core i7 4790K  vs
Turion 64 X2 56 
Architecture x86-64 x86-64
Threads 8 2
L2 cache 1 MB 0 MB
L2 cache per core 0.25 MB/core 0 MB/core
L3 cache 8 MB 0 MB
L3 cache per core 2 MB/core 0 MB/core
Manufacture process 22 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 74.04°C Unknown - 95°C

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
Intel Core i7 4790K
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AMD Turion 64 X2 56
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