Where are you getting that figure? Charts I've seen show the 5870 consuming around 150W idle!HD5870 is also great only 27W in idle !
Just a follow-up: it would seem I've gravely misread the chart, which displays the total power consumption of the test computer, not just the card. That's rather counterintuitive (useless?), but having now looked at the card's review article, it means the poster I originally quoted was correct.Where are you getting that figure? Charts I've seen show the 5870 consuming around 150W idle!
And here I was hoping to get a performance card that wouldn't increase idle consumption much more than the 2008's stock, weak 2600 (~13W IIRC), one of the reasons I hadn't gone for the 285...![]()
If I remember correctly, there was an ambiguous firmware update for the 2600, which resolved some sleep issues but it increased the idle power consumption considerably (basically, it disabled some low-power states).
My card was noisier after the update and consumes almost 20W more. So I think that the 5870 will consume even less than an "updated" 2600...
All these people (including myself) hoping that these new cards work in our Mac Pro 1,1 systems just shows what a good buy that machine was back in 2006.
It may have been expensive, but we're still using them four years later, and for many of us they are still more than fast enough. I know mine still feels like it screams when it comes to performance.
If the new cards DO work in the new Mac Pros it will just underscore what an excellent buy these were. A new Radeon 5xxx will likely extend the lifetime of my machine another two years. Of course, Apple probably doesn't want this, even if they DO end up actually selling me the 5xxx!
i belive not, it looks like the 2010 macpro motherboard is identical to 2009
(this basically means that the core difference between a 2009 macpro and 2010 mac pro is just a couple of bytes of data on the efi chip to support new cpu's...)
and that means that you have only 2 PCIE power ports on the mobo, giving enough power for only one 5870
i'm starting to think about flashing 2009 mac pro with 2010 EFI to enable support for new CPU's.
the tool to flash EFI is actually extractable from a former firmware update, so in theory it would work.
but, i do not know of any way to extract the 2010 efi.
however, when apple releases a firmware update for 2010 macpro (maybe 6 months from now) to fix maybe a bug or something, one could theoretically use that efi to flash on a 2009 mac pro and essentially turn it into a 2010 mac pro.
i will look more into this when time and tools are given to me, right now my only computer is my fathers 2007 mac mini.
It is completely up to whether the cards support the EFI on the machine's motherboard.
All Mac OS X installations of a particular build (note BUILD, not version) are identical. The reason for this is that you can move an OS X installation from any Mac to any other Mac without having driver problems and incompatibilities.
Therefore, once 10.6.5 hits, all Macs will support the new ATI cards... in Mac OS X. The problem is EFI, which initializes the card at boot. Different Mac Pros have different EFI versions. The biggest division is EFI32 and EFI64; the very first Mac Pro models use EFI32. Nvidia has been lacking in support for EFI32 in all Mac cards they've manufactured since the first Mac Pro.
ATI on the other hand has supported both EFI32 and EFI64 in all their card revisions. This is why you can use the Apple branded ATI 2xxx, 3xxx, and 4xxx cards in every Mac Pro ever made. The question here is whether ATI will continue this for the 5xxx series.