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Differences What are the advantages of each

Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Much more l3 cache 6 MB vs 0 MB Compared to all cpus, 6 MB l3 cache is just OK
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3.3 GHz vs 2 GHz Around 65% higher clock speed
Much more l2 cache 1 MB vs 0 MB Compared to all cpus, 1 MB l2 cache is just OK
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
More cores 4 vs 1 3 more cores; run more applications at once
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Air) 4.98 GHz vs 2.49 GHz Around 2x better overclocked clock speed (Air)
Much better PassMark score 6,383 vs 444 Around 14.5x better PassMark score
Much better PassMark (Single core) score 1,863 vs 572 More than 3.2x better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 10,319 vs 1,575 More than 6.5x better geekbench 2 (32-bit) score
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Much better performance per watt 6.79 pt/W vs 0.5 pt/W Around 13.5x better performance per watt
Much more l3 cache per core 1.5 MB/core vs 0 MB/core Compared to all cpus, 1.5 MB/core l3 cache per core is just OK
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Water) 4.88 GHz vs 2 GHz Around 2.5x better overclocked clock speed (Water)
Higher Maximum operating temperature 72.6 °C vs 70 °C Around 5% higher Maximum operating temperature
Front view of AMD Sempron 3300+

Reasons to consider the
AMD Sempron 3300+

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Much lower typical power consumption 50.38W vs 112.55W 2.2x lower typical power consumption
Much lower annual home energy cost 14.94 $/year vs 41.29 $/year 2.8x lower annual home energy cost
Much lower annual commercial energy cost 54.31 $/year vs 110.03 $/year 2x lower annual commercial energy cost

Benchmarks Real world tests of Core i5 2500K vs Sempron 3300+

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 2500K
2,530,000 MB/s
Sempron 3300+
53.85 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 2500K  vs
Sempron 3300+ 
Clock speed 3.3 GHz 2 GHz
Cores Quad core Single core
Socket type
LGA 1155
754
462
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 62W
Annual home energy cost 41.29 $/year 14.94 $/year
Annual commercial energy cost 110.03 $/year 54.31 $/year
Performance per watt 6.79 pt/W 0.5 pt/W
Typical power consumption 112.55W 50.38W

details

Core i5 2500K  vs
Sempron 3300+ 
Architecture x86-64 x86
Threads 4 1
L2 cache 1 MB 0 MB
L2 cache per core 0.25 MB/core 0 MB/core
L3 cache 6 MB 0 MB
L3 cache per core 1.5 MB/core 0 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 1
Operating temperature 5 - 72.6°C Unknown - 70°C

overclocking

Overclocked clock speed 4.98 GHz 2.49 GHz
Overclocked clock speed (Water) 4.88 GHz 2 GHz
Overclocked clock speed (Air) 4.98 GHz 2.49 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 3000 N/A
Latest DirectX 10.1 N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A
3DMark06 5,275 N/A
Intel Core i5 2500K
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AMD Sempron 3300+
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