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mrdeathgod

macrumors newbie
Original poster
Oct 10, 2006
6
0
Hi all,
I recently bought a Mac Pro (2.66Ghz/2GB/X1900XT), and am thinking that the X1900XT might be more power than I need. I'm not a hardcore gamer anymore, but figured I should get a decent video card rather than regret it later. Right now I boot into WinXP for games, but the majority of the time, when i'm using OSX, that monster card is just sitting there idling. Based on the benchmarks i've seen, the idle power draw of the X1900XT is around 80W higher than the 7300GT. So my question for you Mac experts is, does there exist some kind of solution for underclocking the X1900XT in OSX? I'd love to be able to throttle it down during normal use, but still have that horsepower there when it's needed. Thanks!

Matt
 

THX1139

macrumors 68000
Mar 4, 2006
1,928
0
mrdeathgod said:
I'd love to be able to throttle it down during normal use, but still have that horsepower there when it's needed. Thanks!

Why? Are you concerned about cost to operate? I imagine the cost to operate the X1900 is only pennies per month compared to the total cost of electricity for your home or apartment. Or does it bother you that something with that much power is just sitting there without you being able to control it?

In my experience, the X1900 sits there idling away when it's not used and ramps up when there is demand. What you are asking is kind of silly in my opinion... or I just don't get your question. :rolleyes:
 

Spanky Deluxe

macrumors demi-god
Mar 17, 2005
5,285
1,789
London, UK
THX1139 said:
Why? Are you concerned about cost to operate? I imagine the cost to operate the X1900 is only pennies per month compared to the total cost of electricity for your home or apartment. Or does it bother you that something with that much power is just sitting there without you being able to control it?

In my experience, the X1900 sits there idling away when it's not used and ramps up when there is demand. What you are asking is kind of silly in my opinion... or I just don't get your question. :rolleyes:

Yeah that's true, when idling, processors and graphics cards use much less power than when running on full throttle so there's no issue there. Unless of course the OP wants to be able to down clock the card and disable the noisy fan somehow.
 

crazzyeddie

macrumors 68030
Dec 7, 2002
2,792
1
Florida, USA
mrdeathgod said:
Based on the benchmarks i've seen, the idle power draw of the X1900XT is around 80W higher than the 7300GT.
Matt

You also need to consider that in OS X, the card is almost never truly "idle" because of Core Image/Quartz Extreme.
 

mrdeathgod

macrumors newbie
Original poster
Oct 10, 2006
6
0
I was just thinking that if there is a way to get the X1900XT to do the same job (basic OSX usage) and use less power in the process, might as well look into it. I mean there is only so much graphical processing that needs to be done for basic usage, so why feed the card any more electricity than it needs to do that?
 

bearbo

macrumors 68000
Jul 20, 2006
1,858
0
doesn't the card draw less power when it's idled? at least the doesn't go as bad...
 

eXan

macrumors 601
Jan 10, 2005
4,738
134
Russia
mrdeathgod said:
I was just thinking that if there is a way to get the X1900XT to do the same job (basic OSX usage) and use less power in the process, might as well look into it. I mean there is only so much graphical processing that needs to be done for basic usage, so why feed the card any more electricity than it needs to do that?

I am not sure what you're so concerned about: the amount of energy you Mac Pro consumes or what?

BTW computers consume less electrycity than a light bulb ;)

Oh and no, there's currently no way to under/overclock a videocard in OS X on intel Macs.
 

Jiddick ExRex

macrumors 65816
May 14, 2006
1,469
0
Roskilde, DK
eXan said:
BTW computers consume less electrycity than a light bulb ;)

You NEED to elaborate on that please. A Mac Pro with a giga watt PSU might use more power than a 40 Watt light bulb in some aspects, for instance always...
 

eXan

macrumors 601
Jan 10, 2005
4,738
134
Russia
Jiddick ExRex said:
You NEED to elaborate on that please. A Mac Pro with a giga watt PSU might use more power than a 40 Watt light bulb in some aspects, for instance always...

:D Still, the difference between X1900 and GF7300 in power consumptation is minimal.

If you;re so worried about "waste" of energy, why did u buy Mac Pro at all???
 

THX1139

macrumors 68000
Mar 4, 2006
1,928
0
My X1900 fan is silent unless underload so noise shouldn't be a factor. As for the power consumption, you'd probably save more money (and brain cells) by turning off your television for an hour a night. Worrying about powering the X1900 up and down is a waste of time and borderline obsessive.... and I'm wondering why I'm even wasting my time writing about this.

Don't you have something to actually "do" with your Macpro... instead of focussing on tinkering with it?

I proclaim this to be a silly thread. Move along... nothing else to see here.
 

Zoowatch

macrumors 6502
Jan 6, 2004
348
0
Sheffield, UK
so compared to the stock graphic card

is the x1900 significantly more noisy when fed with heavy graphics work?

or are they both just as noisy?
 

mjgunn

macrumors member
Sep 7, 2006
81
1
Its a horrible waste of energy, you should trade it for my 7300 immediately....I'll even throw in like $50 ;)
 
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