Best and Cheapest approach on reaching 4,000 Khash/s?

[Nowii]

Hey all i am quite new to this forum but have been following and mining for awhile, mostly Dogecoins heh.

I would really appreciate it if someone took their time and explained how i could reach 4,000 Khash/s ?

I am currently mining with my EVGA GTX 780 ACX SC at 475 Khash/s.

I have read alittle about USB block erupters but i never really understood this?
Can i buy a USB Block erupter and use it with Cudaminer/CGminer for about 20$? and then get 400 khash/s each?




All information is appreciated!

Yours,
Nowii


Edit: Note i got 2x Radeon HD 6850 Dual fans lying around.

[peterlustig]

Block erupter = bitcoin

20 x 5770 is rather cheap and gets you 4MH, but you also could get 3 x 7990 and put them all into one mainboard. 

[bdiddle]

How are you getting 200k/h out of a 5770? I can't get much more than 105

[Nowii]

Block erupter = bitcoin

20 x 5770 is rather cheap and gets you 4MH, but you also could get 3 x 7990 and put them all into one mainboard. 

I dont have that amount of money at the moment

[Spiffy_1]

Properly tweaked 5 R9 290's will get you to 4000+khashes..  Mining isn't something you can do cheap and make lots of money.. You have to invest.  Start small with a 7950 if you can find one cheap, then go from there.

[Nowii]

Properly tweaked 5 R9 290's will get you to 4000+khashes..  Mining isn't something you can do cheap and make lots of money.. You have to invest.  Start small with a 7950 if you can find one cheap, then go from there.

Yea i know but i am asking for the best options and you gave one

Found a Asus Radeon HD7950-DC2T-3GD5 V2 3GB for 488$.  ( apparently this does 730 khash/s)

[Francisdoge]

I've heard ASIC-scrypt miners are coming. So you could at least wait until CES and see if some annoucement towards get made, and also with new graphic chips anouncements, previous cards are could be likely to get a pricedrop.

[Nowii]

I've heard ASIC-scrypt miners are coming. So you could at least wait until CES and see if some annoucement towards get made, and also with new graphic chips anouncements, previous cards are could be likely to get a pricedrop.

Thanks for that info! i will make sure to wait for those

[kalnas]

Properly tweaked 5 R9 290's will get you to 4000+khashes..  Mining isn't something you can do cheap and make lots of money.. You have to invest.  Start small with a 7950 if you can find one cheap, then go from there.

Yea i know but i am asking for the best options and you gave one

Found a Asus Radeon HD7950-DC2T-3GD5 V2 3GB for 488$.  ( apparently this does 730 khash/s)

You should get R9 290 for this price, which does 880kH