Bitcoin Forum

Hi,
    So i ordered a few 5870s a month or two ago for 180 bucks, now i cant find one on ebay for cheaper than 240.  At this price increase do you think the 5850s are a better deal or should i just wait and scoure ebay for 5870's the issue is the more time im looking for these cards there is an oppurtunity cost, i figure i could probably order 2-3 5850s today and be mining already  but then i would lose on the hash rate 420 for a 5870 rather than 350 for the 5850.   What do you think i know there are a million threads like this but im just trying to be cost effective right now i dont want to spend more than 4-500 on cards the machine ill be running these cards in is a 4xpci asrock with a sem 145 and 2gb of ram, 1000 watt psu  i think the psu is probably more than enough for 4 cards, either 5830s, 5850s, or 5870 wel maybe no 4 5870s but 3 for sure....

How can You get 350 MH/s from HD5850 without overclocking?

My current 2x 5850 crossfire setup yields about 330 mh/s at 900/1150. The temps are a little out of control so I have it running at 775/1125 right now, yielding 290 mh/s each.

Im sorry ok 320 mhash per 5850 thats really not the point the point is, is it more cost effective to get 5850s vs wait and get 5870s for an inflated price of what they are really worth.

I get about 92% of the hash rate of a 5870 on a 5850.  Plus, I can run 3 5850s on a quality 750-watt power supply, for a total hash rate of over 1Gh/s.  Seems like an easy choice to me.

Thanks cryptoman that helps  i was just trying to figure out  which would be the better option and to get 5870s it could take a week or two and by then the difficulty goes up