Choice 3 is really an athlon 3200+, they probably had it mislabled. Out of 1 and 2 the first one is the better choice. Because of the efficient onboard memory controller, the cache size isn't as large of a factor as the clock speed. The oppisite is true on the Intel side. The difference in speed between a 2.8ghz celeron and a 2.6ghz P4 is a large gap (with the advantage to the 2.6ghz P4.)
Also, if you plan on overclocking, choice 1 would be a better choice.
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oh, its a nice day. TO EAT CHILDREN!!!
Amd does not keep it's cache too busy. When it's idle, it helps keep the chip cool. The larger die size is why. This does help a lot in OCing. A 1 meg cache chip will OC higher than a 512 chip. With the 1 meg chip, you can end up with the higher speed, and the extra cache.
I would just get the 3000+ because it is the same speed as the 3200+ in raw megahertz (not power as due to half the cache), and then you could overclock it to 2.4 or even 2.5GHZ. plus the 3000+ is as low as 165 bux
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