Page 1 of 1

battery runtime with intel vs nvidia graphics?

Posted: Tue Jun 17, 2008 9:30 pm
by Nolonemo
Does anyone have an idea of how the standard battery runtime compares between a T61 with the integrated Intel gpu and the Nvidia discrete gpu?

Thanks.

Posted: Tue Jun 17, 2008 10:26 pm
by mtbiac
just upgraded to a new t61 because of this issue, wanted longer battery life. Went from t61 14" wxga+ 2.0ghz, 4gb, 160gb 5400rpm, Nvidia NVS 140m to t61 in my signature. Battery life has increased by over an hour with the same battery, very happy :)

Posted: Tue Jun 17, 2008 11:41 pm
by minc3d
Downclocking the video card with third party software can achieve the same results... I did it years ago when I had a T40p with ATI FireGL 9000.

Posted: Wed Jun 18, 2008 11:10 pm
by chiral
I've got two t61 with the ONLY difference the Nvidia v Intel graphics. The intel routinely gives me seven hours of service while the nvidia give me about three to four hours.

Posted: Thu Jun 19, 2008 9:21 am
by mtbiac
minc3d wrote:Downclocking the video card with third party software can achieve the same results... I did it years ago when I had a T40p with ATI FireGL 9000.
really? I tried this but was unable to get my NVS 140M low enough to make more than a 20min difference... I got almost 6hrs last night on the integrated system whereas with the discrete system I never got more than 4....

Posted: Thu Jun 19, 2008 1:50 pm
by Pascal_TTH
minc3d wrote:Downclocking the video card with third party software can achieve the same results... I did it years ago when I had a T40p with ATI FireGL 9000.
Never ever ! You underclock Quadro NVS as low as it can, it will still draw power to fead the 210 000 000 transistors. It will never add one hour battery life. 10 to 15 minutes in best case. T40p's FireGL 9000 dates from times when GPU were not power hungry.

Posted: Thu Jun 19, 2008 1:54 pm
by SHoTTa35
well T61 WS 14.1 WXGA+ Intel 3100/4965 is gona be my next buy then :) Maybe i'll find a used one and sell my T60 for that. The T60 now is pretty good but i don't need the powerful GFX card that i have now and would MUCH rather the longer battery life.

Posted: Fri Jun 20, 2008 10:59 pm
by mtbiac
honestly, with the integrated graphics Vista Aero stills runs just as smooth (if not smoother due to faster processor/HD maybe?) and since I don't gave at all, I have literally noticed 0 difference in anything that a graphics processor could have affected. :)

Posted: Sat Jun 21, 2008 5:42 am
by venro
Good to know :) I can't remember when was the last time I've played 3D game, so more battery time would hit the spot.