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Athalon II x4 640 or Athalon II x3 445 Rana

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September 21, 2010 12:59:08 AM

i've heard mixed reviews about both and dont know which to go with also i dont know anything about overclocking, except for the fact that it increases the clock speed and can unlock more cores so i will take that into some consideration but i would really just want to go with the base performance
thanks

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a c 145 à CPUs
a b K Overclocking
September 21, 2010 1:16:59 AM

go with the x4 640 unless money is an issue. You will not notice the 100Mhz advantage the x3 has but you will notice the extra (4th) core when the system is stressed.
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September 21, 2010 1:21:09 AM

ok so what about if i hd the choice of the combo of the x3 and a geforce GTX 460 or the x4 and a crossfire ready radeon hd 5770
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a b à CPUs
a b K Overclocking
September 21, 2010 1:30:34 AM

then take the x3 for sure
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September 21, 2010 2:29:43 AM

or maybe a cheaper mobo and the x4 and the gtx 460 idk ill figure it out how much of a difference will there be between the x3 and x4 cause i can prob work around it if im not gonna use a crossifre i can get a cheaper mobo and the x4 and gtx 460
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a c 131 à CPUs
a b K Overclocking
September 21, 2010 2:37:35 AM

If you are gaming, very few games will take advantage of 4 CPU cores. I would get 4 cores if you can manage it though. But the GTX460 is definitely what you should try to get.
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September 21, 2010 2:48:09 AM

ok i already priced it out with a gtx 460 and a triple core and its in my budget so maybe i could overclock the triple core and keep the same mobo but if i can get the same mobo - the crossfire and it saves me 20 bucks should i use the 20 bucks to get the quad core instead or will the triple core just overall perform better also i would be doing mostly gaming and media management the max i would be doing would be photoshop and limewire/itunes with firefox on facebook but i do that now with this dual core pretty well

also is there a difference in the cache between the cpus i couldnt make sense of the newegg description
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a c 131 à CPUs
a b K Overclocking
September 21, 2010 2:55:01 AM

There is no cache difference, really. The extra 512kb in the x4 is dedicated to the 4th core.

It's up to you to get the x3 or x4. The x4 will be useful in applications that can use the cores, like rendering or 3dmax or some photoshop tasks. Adobe Aftereffects, things like that.

For games, most use 3 cores but you will see an improvement with games like Dragon age, FSX, GTA4 and more upcoming games. If you intend to keep the computer for a while, spend the extra on the 4 core.
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September 21, 2010 12:05:45 PM

ok then ill prob do that i dont wanna be replacing it soon i just wanted to make sure the x4 wouldnt be inferior in other ways because of the addition of the fourth core
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a c 81 à CPUs
September 21, 2010 12:18:10 PM

Getting a quad core (i.e. a true quad) is more useful in a longer run.. The video card can be upgraded easily whenever you've the cash for it..
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September 21, 2010 6:25:31 PM

mostly gaming but also most likely media i could be on limewire, photoshop and firefox all at once but not more than that but the way i worked it out with combo discounts i may be able to get the x4 cheaper anyway
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September 22, 2010 1:12:53 AM

nevermind theres a 20 dollar difference is it worth it for the 4th core?
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a c 131 à CPUs
a b K Overclocking
September 22, 2010 1:26:10 AM

ocsurfz said:
nevermind theres a 20 dollar difference is it worth it for the 4th core?

It's up to you to get the x3 or x4. The x4 will be useful in applications that can use the cores, like rendering or 3dmax or some photoshop tasks. Adobe Aftereffects, things like that.

For games, most use 3 cores but you will see an improvement with games like Dragon age, FSX, GTA4 and more upcoming games. If you intend to keep the computer for a while, spend the extra on the 4 core.
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a c 145 à CPUs
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September 22, 2010 2:04:45 AM

Yes get the 4th core. I have the x3 445 in my HTPC figured it would be more than enough but now I wish I had went for the 4th core instead.
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September 22, 2010 11:01:02 PM

im not sure more though the phenom x2 is the same as the athalon II x3
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October 3, 2010 1:00:22 AM

Best answer selected by ocsurfz.
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Anonymous
a b à CPUs
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October 11, 2010 7:24:23 PM

The "Rana" x3 is actually a "Propus" quad core with one core disabled. To unlock the 4th core,your motherboard must support "Core Leveling" or have a feature such as "Advanced Clock Calibration" (ACC). There is no guarantee that the 4th locked core will be useable. It may have been locked due to defects or it may have simply been locked to keep up with retail supplier demands.

EDIT: The Athlon II x3 445 will unlock to a Athlon II x4 645 3.1ghz
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