AMD FX "Bulldozer" Review - (4) !exclusive! Excuse for 1-Threaded Perf.

[dess]

Yep basically I came to the conclusion that any game that uses 4 cores heavily ( like 75% or better ) will benefit from 4core 4 cluster configs........problem is the clock hit it takes.

Why is it a problem for them if those are still faster this way than with the higher OC?

the idea of comparing 4/8 with 4/4 instead of with 2/4 is to isolate things to a single detail and test the crap out of that detail to understand it. if you add in clock rates or TDP then your looking at a scenario closer to reality, but not with scientific precision.

Yes, this way you understand that an up to 4-threaded app won't scale any further with more cores than 4. What a revelation...
And you will learn nothing about CMT scaling (in case of up to 4-threaded apps, again).

what chew is doing is great, but he would need to do about a dozen more tests with each scenario to cover everything. so instead he built a few real life examples and showed when either is better. i would just like to see if he can set up a turbo on the 4/4 to let it get a little higher clock rate when its a low threaded game. he might only get an extra 100mhz, but it might be enough to make it better in many more cases.

Do you mean, to see if an even higher clock is possible in 4CU/4C mode, but with 2CU's gone to sleep? Could be.

i havnt seen enough examples of how turbo can be set up with overclocks and how well its working once set up.

I think it can be done by modifying the VID and FID values that are assigned to the various power states.

I think it would just be easier to set up 2 profiles in bios, load whatever one will benefit you most for the app your running. Thats all i'm doing now.

How great it would be if it all worked full automatic... Could it made work under Windows with some driver? Or only MS could do it?
Well, in times like this Linux would come handy...

As far as 8 core operation I tried 4.6 on this air cooler at this voltage, no dice.

What if you enable only two cores in two CU's...?