Output for 7870

buy a dvi to vga adapter.

could you link me i dont which is the right thing dvi-i dvi-a or dvi-d adapters
thanks for the help

if it is at all possible, get a new monitor. You can buy adapters, but a powerful graphics card like that has it's potential wasted when playing over VGA. To put it into perspective it's like driving around town in a Ferrari, sure it's nice and comfortable, but it's totally overkill. A 1920x1080 monitor would give that graphics card a nice place to run.

for and adapter do i have to buy a specific one or can it be any dvi-vga
i would buy a new monitor if i had the money

Make sure it's an active dvi-vga but other than that it doesnt matter. Im actually pretty sure that a 7870 comes with an adapter in the box, or at least its pretty standard for companies to do that.

so this should work even though it says dvi-m
http://www.scan.co.uk/products/startech-dvi-m-to-vga-f-...

That should work fine. DVI-m just means that the connector is a male.