Power Consumption Test System And Electricity Cost

Now, how about £ for the UK site, and € for Europe?

Other than that, a good article. Very informative. Very linkable!

Out of interest did you test these cards with one monitor connected or two?

I mention this because using a power meter I noticed a strange 'bug' on the Nvidia GTX 280. With 2 monitors connected instead of 1 the idle power consumption of the whole PC increased by 38w!!

I tested this with multiple driver revisions and the latest available BIOS. Turns out I'm not the only one to see this either.

I don't get this problem with my 8800GT 512mb. The power consumption of that is the same with one or two monitors.

Also out of interest why does the 8800 1024Mb use less power than the 512mb model, is it a 55nm core?

Nice you tested all those cards

The cost is not that relevent really because using different quality psu's at differing variations of optimal load will produce wildly varying results not to mention the fact that various utility suppliers charge different rates. Therefore, I see no real need for a conversion to pounds or euro's for those of us living in areas outside of the US. What is important and interesting about this article is that it allows people to make an informed choice about what psu is likely to be best for their chosen setup by using the figures in a comparative way regardless of cost. Great article.

small reminder for "green" people.
ask yourself following questions:
Does my house use electricity/oil for heating?
if yes how much?
conclusion: your computer reduces heating costs the same amout it consumes energy 1:1.
ofcourse same applies to lights/tv/etc
when calculating "waste" energy you really need to dig deep before getting correct answer.

well that argument isn't entirely correct because certain things like lights don't radiate heat into the room it stays near the ceiling.
also high temperatures reduce the lifespan of a pc - and require more airflow and cooling which will relate to more dust and the need for more regular maintainanceof the PC.
also during the summer time when it is hot you don't require heating so any heat generated then IS wasted energy.
generally speaking wherever any energy is wasted it is better to eliminate it because 9 times out of 10 it will pay off.

Every single article I have read today has someone complaining about dollars and pounds.
It would take less time to lookup a local price, do a conversion or order the thing from the US.
whining pomm stereotype is never going to go away.

This "mi1ez " guy has no life eithere that or his from a different site and doesn't like this one.. Why don't you go to every site on the net that's in dollars and tell them change to GBP just because your to lazy to do a conversion.. Get a life

er fookdis....I don't know what country you live in but here in UK it's kinda hard to "order the thing from the US" when we are talking about power providers. As for conversions its usually pretty easy since the pound is generally worth a little under 2 US dollars. But I cartainly agree that to niggle about the fact that the article only gives prices in US currency for the reasons I already stated above. I'm sure the author of the review only included a cost comparison as a rough guide anyway. On the other hand, there is an underlying issue here in which milez actually has a point. Every article I've ever read here is exactly the same whether you read it on the "uk content" or "us content" pages and sometimes this causes incorrect comparisons as you can see if you read my response to the recent 3x2mb ddr3 memory test.

"...since the pound is generally worth a little under 2 US dollars"

Those were the days. Happy, recession free days.

Fair point. It's more like 1.65 atm. But the other problem with buying "cheaper" gear from the US is that by the time you add the postage it's actually MORE expensive than the inflated UK prices. For example, the postage charge on motherboards from US to UK is around the $70+ mark. The point I'm making (off topic) though is that when reviews start doing hardware test conclusions based on an American concept of "value" there is definately a "lost in translation" problem and it is THIS that should be looked at when considering content changes between reviews on US and UK Content pages.

1.65?!

It is about £1 - $1.38 at the moment. Which is changing daily. You really wouldn't want to be buying anything from either the US or Eurozone at the moment.

Ha Ha,

Maybe they should evacuate everyone from the UK across the channel in little fishing boats and let the island sink under the weight of the debt it's carrying. No debt - no problem. (Except for the french having to put up with the englishers.)

Dubbya. We already did that before...we sent all the criminals to America and Australia (and most of those who went on their own were fleeing the threat of the debters prisons). But let's not get into some petty one upmanship that you don't have the mental capacity to persue eh.

Indeed it seems strange that the 1024 Mb configuration would consume more power, is that perhaps a mistake on the table or test?

On a review on www.techpowerup.com about the VVIKOO GeForce 8800 GT, it is written: "In Idle we see no difference between the 1024 MB and the 512 MB version of the 8800 GT. Under load this changes slightly, with the 1 GB version taking a small 10W lead (~5%). The peak power draw is higher as well with 231 W vs. 213 W on the 8800 GT 512 MB. This increase in power draw was to be expected since the additional eight memory chips will consume some power."

To all the posters complanting about us$ used
"We used 20 cents (the price at the Munich utility company Stadtwerke München) for the electricity calculation. PSU stands for the power supply unit." so they used euro's which are 1:1 with the pound quote taken from page 2

Very good article, I had been thinking for years that the power consumption for the graphics cards is going maddly off the scale. I have an 2nd PC used by the family thats has an old TI4600 card and I would like to upgrade it because some DirectX 9 games fail to work but its only a 250watt Shuttle case+psu. Anyone any ideas how much a TI4600 draws and what I could swap it for without killing the shuttle psu?

Being one that is currently experiencing power issues I found this to be information I desperately needed!

So will the power consumption start playing into the monthly value shakedowns? Speaking of which, where's the "Best Video Cards For The Money: Jan '09" article?