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Differences What are the advantages of each

Front view of Intel Core i7 4770K

Reasons to consider the
Intel Core i7 4770K

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Much newer manufacturing process 22 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3.5 GHz vs 2.2 GHz Around 60% higher clock speed
Much better performance per watt 11.31 pt/W vs 0.23 pt/W More than 49.5x better performance per watt
Much better PassMark score 10,016 vs 476 More than 21x better PassMark score
Newer Jun, 2013 vs May, 2004 Release date over 9 years later
Much better overclocked clock speed (Air) 4.48 GHz vs 3.02 GHz Around 50% 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) 4.55 GHz vs 1.8 GHz More than 2.5x better overclocked clock speed (Water)
Front view of AMD Opteron 248

Reasons to consider the
AMD Opteron 248

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Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration

Benchmarks Real world tests of Core i7 4770K vs Opteron 248

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core i7 4770K  vs
Opteron 248 
Clock speed 3.5 GHz 2.2 GHz
Cores Quad core Single core

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
3DNow!
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

details

Core i7 4770K  vs
Opteron 248 
Threads 8 1
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 22 nm 130 nm
Max CPUs 1 2
Operating temperature Unknown - 72.72°C 0 - 71°C

overclocking

Overclocked clock speed 4.48 GHz 3.02 GHz
Overclocked clock speed (Water) 4.55 GHz 1.8 GHz
PassMark (Overclocked) 6,694.4 879.3
Overclocked clock speed (Air) 4.48 GHz 3.02 GHz

power consumption

TDP 84W 85.3W
Annual home energy cost 20.24 $/year 20.55 $/year
Annual commercial energy cost 73.58 $/year 74.72 $/year
Performance per watt 11.31 pt/W 0.23 pt/W
Typical power consumption 68.25W 69.31W
Intel Core i7 4770K
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AMD Opteron 248
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