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Differences What are the advantages of each

Front view of Intel Core2 Duo T9900

Reasons to consider the
Intel Core2 Duo T9900

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 3.06 GHz vs 2.53 GHz More than 20% higher clock speed
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better overclocked clock speed (Air) 3.38 GHz vs 2.97 GHz Around 15% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,231 vs 1,067 More than 15% better PassMark (Single core) score
Better overclocked clock speed (Water) 3.07 GHz vs 2.53 GHz More than 20% better overclocked clock speed (Water)
Front view of Intel Core i5 460M

Reasons to consider the
Intel Core i5 460M

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More threads 4 vs 2 Twice as many threads
Newer Sep, 2010 vs Jun, 2009 Release date over 1 years later

Benchmarks Real world tests of Core2 Duo T9900 vs Core i5 460M

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 T9900
125,000 MB/s
Core i5 460M
117,750 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo T9900  vs
Core i5 460M 
Clock speed 3.06 GHz 2.53 GHz
Cores Dual core Dual core
Socket type
479
P
BGA 1288

features

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

power consumption

TDP 35W 35W
Annual home energy cost 8.43 $/year 8.43 $/year
Performance per watt 6.73 pt/W 7.11 pt/W
Typical power consumption 28.44W 28.44W

details

Core2 Duo T9900  vs
Core i5 460M 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 32 nm
Transistor count 410,000,000 382,000,000
Max CPUs 1 1
Clock multiplier 11 19

overclocking

Overclocked clock speed 3.38 GHz 2.97 GHz
Overclocked clock speed (Water) 3.07 GHz 2.53 GHz
Overclocked clock speed (Air) 3.38 GHz 2.97 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 500 MHz
Turbo clock speed N/A 766 MHz

bus

Architecture FSB DMI
Number of links 1 1
Intel Core2 Duo T9900
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Intel Core i5 460M
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