Underclocked and undervolted piledriver?

[pc999]

Hi

Anyone tried to underclock and undervolt a piledriver cpu? What about power consumption.


I am trying to find some power usage numbers for recent AMD cpu or even apu.

Thing is I will probably update my pc in 1-2 weeks and the fx6300 seems the best choice in price/performance ratio but at a higher power usage, but I only need the extra performance (over my x2 4850e) sometimes mostly for multimedia stuff and some gaming.

I was thinking that I should easly be able to underclock and undervolting a fx6300 to 2,6Ghz (or even lower) for the most time and still be 2,5x more powerfull than my setup, and when I need it put it back at normal (or higher) clocks/volts for full performance.

Thing is the only number that I find, although encouraging, they dont even underclock it ( http://www.tomshardware.com/reviews/a10-5800k-trinity-efficiency,3315.html ) so I would like to know what to expect.

Thanks.

 

[Soulkeeper]

I would also like to hear about this.
The internet is lacking accounts of people underclocking/undervolting any new vishera

 

[Yuriman]

Share your experience with us when you do!

My 3570K spends 95% of its life sitting at 1.6ghz though due to EIST (AMD's equivalent being Cool n Quiet, I believe), so underclocking/undervolting wouldn't give a whole lot of savings for me.

 

[frozentundra123456]

Hi

Anyone tried to underclock and undervolt a piledriver cpu? What about power consumption.


I am trying to find some power usage numbers for recent AMD cpu or even apu.

Thing is I will probably update my pc in 1-2 weeks and the fx6300 seems the best choice in price/performance ratio but at a higher power usage, but I only need the extra performance (over my x2 4850e) sometimes mostly for multimedia stuff and some gaming.

I was thinking that I should easly be able to underclock and undervolting a fx6300 to 2,6Ghz (or even lower) for the most time and still be 2,5x more powerfull than my setup, and when I need it put it back at normal (or higher) clocks/volts for full performance.

Thing is the only number that I find, although encouraging, they dont even underclock it ( http://www.tomshardware.com/reviews/a10-5800k-trinity-efficiency,3315.html ) so I would like to know what to expect.

Thanks.

Wow, here we go again. I am only going to make one post and not get into the usual AMD vs Intel argument, but if you are concerned with power consumption, I would just go with an ivy i3 or if you are willing to do only very limited gaming, Trinity using the APU, although it would not be my choice.

If you get the fx, you will have to add a discrete card as well, and will have to use the discrete card all the time, which will somewhat negate the advantage from undervolting.
Well, maybe they do still make MB with onboard graphics, but I would think it would not be very satisfactory.

If you got the ivy you could even use the igpu and switch to a discrete card for gaming. Or if you got trinity, you could undervolt most of the time and overclock for gaming or heavier Cpu usage cases.

 

[pc999]

If you got the ivy you could even use the igpu and switch to a discrete card for gaming.

I didnt knew this.

Will that work with all the mb?

 

[Yuriman]

I'm not certain, but I know it works with boards that have Lucid MVP.

Example: http://www.asrock.com/mb/Intel/Z77 Extreme4/

 

[pc999]

Thanks, but that is to expensive, I will see if I can find cheaper ones.

 

[Arkaign]

Thanks, but that is to expensive, I will see if I can find cheaper ones.

http://www.newegg.com/Product/Produc...82E16813157304

"Virtu Universal MVP intelligently and dynamically assign tasks to integrated or discrete graphics resource for uncompromised game response performance and better power efficiency."

 

[pc999]

Thanks for the find.

BTW it looks like it work on both Intel and AMD (but not avaiable atm).

http://www.lucidlogix.com/product-virtu-universal.html

Anyone knows if this thing work on Linux, I am making the transition to Ubuntu...

 

[frozentundra123456]

I didnt knew this.

Will that work with all the mb?

Sorry, I was thinking about just doing it in bios. I guess you would have to remove the card or use some expensive device. I guess it would use the dgpu if it is installed by default.

 

[Arkaign]

Yep. I wouldn't worry too much about non-overclocked 6300 power use. Obviously the Intel chips are even better on power, but it's really not bad. The 6100 was much worse, the enter BD line was pretty bad imho. A good friend just got a black friday deal from Fry's, an FX 8120, and MSI "military grade" 970 board combo for $140AR, but it's not stable at stock. Swap in 955BE, perfect, swap 8120 back in, instant reboots, BSODs, hard freezes, etc. With various ram, PSUs, etc. Just a bad product imho. The new AMD series is much better, which the 6300 is a model of.

 

[nforce4max]

Disable Turbo and leave Cool & Quiet on then slowly drop your volts one increment at a time then bench till you get a blue screen. If the sample is good and the temps are good you could reduce power consumption at stock clocks by maybe 10-30W but with underclocking it could be as much as 50w or more without being too close to 2ghz.