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Phenom II x4 840 vs 955

post #1 of 16
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I'm looking to upgrade and I need an easy answer and explanation.

What makes the 955 $30 more expensive than the 840, and is it worth the extra money?
    
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post #2 of 16
Get the 955. $30 is worth it for more up to date and more overclockable hardware. Then again it's not a huge differents.
    
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post #3 of 16
The 840 is an Athlon II and doesn't have any L3 cache. Btw, you can find great used 955 chips for $100.
Edit: Btw, the 955 are Black Edition chips, so they have unlocked multipliers.
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post #4 of 16
955 hands down.
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post #5 of 16
I'd have to go with the Phenom II X4 955 BE, too. The problem with the "Phenom" II X4 840 is that, according to AMD's own definition of what a (desktop) Phenom is, it's not. It lacks the L3 cache that the Phenom typically has, and by extension is based on not the Deneb/Thuban die, but the Propus die.

If you don't care about it having OEM packaging (and, by extension, no cooler), then get a real Phenom for cheap ($102): the Phenom II X4 820.

http://www.newegg.com/Product/Product.aspx?Item=N82E16819103824&cm_re=Phenom_II_X4_820-_-19-103-824-_-Product
    
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post #6 of 16
Quote:
Originally Posted by LOL_Wut_Axel;12441237 
I'd have to go with the Phenom II X4 955 BE, too. The problem with the "Phenom" II X4 840 is that, according to AMD's own definition of what a (desktop) Phenom is, it's not. It lacks the L3 cache that the Phenom typically has, and by extension is based on not the Deneb/Thuban die, but the Propus die.

If you don't care about it having OEM packaging (and, by extension, no cooler), then get a real Phenom for cheap ($102): the Phenom II X4 820.

http://www.newegg.com/Product/Product.aspx?Item=N82E16819103824&cm_re=Phenom_II_X4_820-_-19-103-824-_-Product

This exactly. AMD's marketing department screwing everything up. The difference between the 820 and the 955 is 4mb vs 6mb of l3 cache and the unlocked multiplier on the 955. The 955 might clock slightly higher but with a solid board you could get a decent OC out of the 820. I'll vote for saving 35 dollars with the 820 and getting a good aftermarket cpu cooler.
Edited by RichardS - 2/18/11 at 9:14pm
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post #7 of 16
The 8XX series Phenoms have 4MB L3 Cache, while the 9XX have 6MB.

The 955 also has an unlocked multiplier
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post #8 of 16
8XX series Phenom II has 4MB L3 cache, EXCEPT the new x4 840 which is apparently an Athlon II variant with no L3 cache.
post #9 of 16
Quote:
Originally Posted by xd_1771;12442123 
8XX series Phenom II has 4MB L3 cache, EXCEPT the new x4 840 which is apparently an Athlon II variant with no L3 cache.

dude your right eek.gif (google is awesome)


WTH amd, WHY do you mess with Phenom brand?!
buttkick.gif
Edited by reflex99 - 2/18/11 at 10:10pm
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post #10 of 16
I think the Phenom II x4 840 was supposed to be a black edition CPU.... hence the Phenom II name, despite no L3 cache. However, this does not seem to be the case at all.
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