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Differences What are the advantages of each

Front view of Intel Core2 Duo U7500

Reasons to consider the
Intel Core2 Duo U7500

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Much lower typical power consumption 8.13W vs 112.55W 13.9x lower typical power consumption
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 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Much lower annual home energy cost 2.41 $/year vs 41.29 $/year 17.1x lower annual home energy cost
Much lower annual commercial energy cost 8.76 $/year vs 110.03 $/year 12.6x lower annual commercial energy cost
Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Much higher clock speed 3.3 GHz vs 1.06 GHz More than 3x higher clock speed
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per dollar 4.1 pt/$ vs 0.18 pt/$ Around 23x better performance per dollar
Much better geekbench 2 (32-bit) score 10,319 vs 989 Around 10.5x better geekbench 2 (32-bit) score
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 4.98 GHz vs 1.42 GHz More than 3.5x better overclocked clock speed (Air)
Much better PassMark (Single core) score 1,863 vs 374 Around 5x better PassMark (Single core) score
Significantly better PassMark score 6,383 vs 579 More than 11x better PassMark score
Newer Jan, 2011 vs Jul, 2006 Release date over 4 years later
More cores 4 vs 2 Twice as many cores; run more applications at once
Much better overclocked clock speed (Water) 4.88 GHz vs 1.07 GHz More than 4.5x better overclocked clock speed (Water)
Better performance per watt 6.79 pt/W vs 4.3 pt/W Around 60% better performance per watt
More threads 4 vs 2 Twice as many threads

Benchmarks Real world tests of Core2 Duo U7500 vs Core i5 2500K

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

Core2 Duo U7500
45,400 MB/s
Core i5 2500K
2,530,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo U7500  vs
Core i5 2500K 
Clock speed 1.06 GHz 3.3 GHz
Cores Dual core Quad core
Socket type
479
LGA 1155

features

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

power consumption

TDP 10W 95W
Annual home energy cost 2.41 $/year 41.29 $/year
Annual commercial energy cost 8.76 $/year 110.03 $/year
Performance per watt 4.3 pt/W 6.79 pt/W
Typical power consumption 8.13W 112.55W

details

Core2 Duo U7500  vs
Core i5 2500K 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 0.25 MB/core
Manufacture process 65 nm 32 nm
Transistor count 291,000,000 1,160,000,000
Max CPUs 1 1
Clock multiplier 8 33
Voltage range 0.8 - 0.97V 1.2 - 1.5V

overclocking

Overclocked clock speed 1.42 GHz 4.98 GHz
Overclocked clock speed (Water) 1.07 GHz 4.88 GHz
Overclocked clock speed (Air) 1.42 GHz 4.98 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 3000
Latest DirectX N/A 10.1
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,100 MHz
3DMark06 N/A 5,275

bus

Architecture FSB DMI
Number of links 1 1
Intel Core2 Duo U7500
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Intel Core i5 2500K
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