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Differences What are the advantages of each

Front view of Intel Core i5 2500

Reasons to consider the
Intel Core i5 2500

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Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 3.3 GHz vs 2.3 GHz Around 45% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better PassMark (Single core) score 1,857 vs 778 Around 2.5x better PassMark (Single core) score
More l3 cache 6 MB vs 2 MB 3x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better performance per watt 9.04 pt/W vs 1.36 pt/W Around 6.8x better performance per watt
Significantly more l3 cache per core 1.5 MB/core vs 0.5 MB/core 3x more l3 cache per core
Significantly better overclocked clock speed (Air) 3.7 GHz vs 2.43 GHz More than 50% better overclocked clock speed (Air)
Better PassMark score 6,257 vs 2,814 Around 2.2x better PassMark score
Significantly higher Maximum operating temperature 72.6 °C vs 55 °C More than 30% higher Maximum operating temperature
Newer Jan, 2011 vs Apr, 2008 Release date over 2 years later
Much better overclocked clock speed (Water) 4.21 GHz vs 2.3 GHz Around 85% better overclocked clock speed (Water)
Front view of AMD Opteron 2356

Reasons to consider the
AMD Opteron 2356

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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
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Lower typical power consumption 60.94W vs 77.19W More than 20% lower typical power consumption
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Lower annual home energy cost 18.07 $/year vs 22.89 $/year More than 20% lower annual home energy cost
Lower annual commercial energy cost 65.7 $/year vs 83.22 $/year More than 20% lower annual commercial energy cost

Benchmarks Real world tests of Core i5 2500 vs Opteron 2356

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 2500
2,410,000 MB/s
Opteron 2356
86.9 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 2500  vs
Opteron 2356 
Clock speed 3.3 GHz 2.3 GHz
Cores Quad core Quad core
Socket type
LGA 1155
F
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 75W
Annual home energy cost 22.89 $/year 18.07 $/year
Annual commercial energy cost 83.22 $/year 65.7 $/year
Performance per watt 9.04 pt/W 1.36 pt/W
Typical power consumption 77.19W 60.94W

details

Core i5 2500  vs
Opteron 2356 
Threads 4 4
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 6 MB 2 MB
L3 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 2
Clock multiplier 33 11
Operating temperature Unknown - 72.6°C 0 - 55°C

overclocking

Overclocked clock speed 3.7 GHz 2.43 GHz
Overclocked clock speed (Water) 4.21 GHz 2.3 GHz
Overclocked clock speed (Air) 3.7 GHz 2.43 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 2000 N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A
Intel Core i5 2500
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AMD Opteron 2356
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