Nvidia GT 120 - Can someone confirm it's working in 2008 mac pros?

The 4870 is the better video card, if that's what you are asking. You can find various benchmarks at Bare Feats.

The NVIDIA GT 120 has EFI-64, so will only work in the early 2008 or 2009 Mac Pro. Your Mac Pro needs a NVIDIA card with EFI-32, or an ATI card that will work with any Mac Pro.

They should have known, if you told them you have a 2006/2007 that the online specs for the GT120 is it needs "PCI Express 2.0" though I don't think hardware requirements (and naming) really help or make it clear or technically accurate.

But the box I'd hope would say "Early 2008 model Mac Pro or later."
Can't be that hard.

Off the shelf, right now, there are no Nvidia cards being sold by Apple that work in 1st gen Mac Pro.

This is a question only you can answer. You already have a flashed 4870 that I suppose is working for you. I would not know in what way you think the GT120 would be a replacement for the 4870 other than a lower power requirement and the ability to install more than one video card. The latter would only be meaningful if you needed to run multiple monitors.

As for replacing your 4870 with one from Apple I don't see why you would want to do that if the one you have is working OK.

I would not want to tell you what to do. I'm not comfortable making decisions for others, but if I were in your position and had no need for multiple cards then I would do nothing. But if you really don't want to keep that flashed 4870, you can send it to me where it will find a good home in my first generation MP.

In response to your message about Windows 7. No, I have no particular interest in running Windows 7. Although I have a Boot Camp partition on my MP with Vista installed, I almost never use it. I do not have much of a need to run Windows other than curiosity. But, if you wish to enlighten me about installing Windows 7, I could pass that knowledge on to other users who do want to use it.

I'm a bit out of my element regarding use of either card since I have neither. I suppose I would look at it from the point of view that if the 4870 would work with the monitor I want, then I'd have no reason to replace it, even were I not to use the mini-display port. But this isn't a question I can really answer since I am not familiar with the cards or the Apple Cinema Displays.

The Hatter is probably the better person to ask.

I did get your information about Windows 7. Thanks for that.

I suppose the problem with your 4870 is that it's a street model and doesn't come with the Apple-centric mini-display port.

Anyway, although I'd certainly accept it I can't justify buying one. I have an ATI 3870 in my MP, and it's ample for my needs - probably overkill! I have the 2600 card, too, and I do notice the difference between it and the 3870 and versus the original 7300. Unfortunately, you can't get top performance from the 2600 with the 3870 also installed since only one slot can be 16x. So I only use the one card. I only have one monitor so there's little point for two cards.

ok here is my question i went to my local apple store about (80 Miles away) told them i had a Dual-Core Intel Xeon 2.66 GHz with the NVIDIA GeForce 7300 GT (256) and that i wanted to upgrade it they sold me a NVIDIA GT 120 it came in a apple box with no software and they said it should work as long as i had 10.5.6 installed so i installed it and NOTHING when i go to system profile it does not even show up as a video card it just says DISPLAY wher the older video card shows the Name of the card when installed i read a could of things online where people say they have it work just fine, so am i missing something? what can i do to get it to work or do i take it back ?

A forum search found this relevant discussion that should answer your question.

Thanks for the information.

If you decide you don't want that 4870, just let me know. I promise to provide a loving home, will feed it only the best food, and be sure it gets regular checkups.