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How much difference between Athlon 240 and Athlon 620

I saw a table the other day showing recommend NB Frequency based on CPU Frequency and a little formula to work it out (roughly) but I can't for the life of me find it now!
 
buttkinz said:
http://www.bit-tech.net/hardware/cpus/2009/10/26/amd-athlon-ii-x4-620-cpu-review/6

check the lack of scaling and apalling min framerates in crysis, took mine up to 3.85ghz, made no difference to fps :( now gone up for sale and after a phenom BE as i do nothing but game lol!
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crysisaiix4620.gif


There is something wrong there! :D

I like Bit-Tech.net and I think Richard Swinburne is a good journalist but I am not placing that much faith in his overclocking skills with a Propus! . . . How on earth can an AII X4 620 @ 3.5GHz be slower than a stock 2.8Ghz Intel Core 2 Duo :confused:
 
Big.Wayne said:
You got one a few days ago and you have already decided the chip has a problem?

You just stated in another thread you spent a week trying to solve a crossfire problem?

How long have you had this chip exactly? :D



Well It looks like something is up with either your set-up or your overclock settings, you must be an overclocking genius to have deduced all this is such a short amount of time, I had my AII X3 system running at stock at least one week before overclocking it and everything worked great, suprisingly good actually almost not needing the chip to be running higher than stock 2.7GHz.

The only main differences here are your using a 4-core Propus and I'm using a 3-core Propus (Rana). your using a Crossfire set-up and I'm using a single Radeon HD 4870 512MB.

I have stumbled across a problem which sounds awefully like the situation you have described and that is if I don't set the correct ratio between CPU-MHz and CPU-NB MHz (maybe HTT also?) then 3D becomes *choppy*, I observed this just a few days ago when working on pushing my overclock and running some 3Dmark benchies, it would literally jump and splutter (pause/skip) through some of the tests? . . .Of course the problem disappeared when I reduced the overclock/reset the system to stock.

I haven't yet worked out the cause of this issue but I have a feeling there is some ratio that needs to be maintained when combining high CPU speed with high NB speed . . .

Currently at (13.5x250) 3375MHz and everything is really nice, been playing Stalker S.O.C for a week @ 1920x1200/Max and its smooth as anything.

I would say assuming there isn't some 4-core Propus/Crossfire problem the issue lay with your lack of patience/incorrect overclock settings than the chip being poop! :D
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haha, aye wayne, im very impatient ;) I actually have little expeience in the newer chips from AMD, Iv spent the last few years on intels kit. What you have found sounds interesting, il have a look at it and see what I can find, I honestly didnt think that anyone else seemed to have the same issues as myself from perusing the forums so thought that the chip wasn't suited to gaming as much as the phenoms :)

I stand corrected haha :)
 
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