Mining scrypt hardware

[Samcon]

Hello, I'm a new entry of this forum and I have a question.
I am starting mining scrypt but I don't know which graphical card is better.
The price is not important, I'm searching for someone that can help me to choose between these models:


Gigabyte GV-R928XOC-3GD - AMD r9 280x

Sapphire VAPOR-X R9 280X 3GB GDDR5 OC

Sapphire 11221-00-20G - AMD R9 280X

Sapphire Toxic - AMD R9 280X



I need to know which one is the best one for ratio Kh/Power Cost.

Thank you for the help

[1714951193]

1714951193

[1714951193]

1714951193

[hostmaster]

you ask wrong question you need to learn which one stabely overclockable... Because from energy side there is not much lose but overclocking can benefit most.

[Samcon]

I am not practiced of this world, in your opinion which one is the best between these graphic card? Or a similar card.

[balanghai]

I have ordered 2 MSI Twin Frozr version of R9 280X to add my rig....  On my fumbling around I learned that it has a good overclocking feature because it's even factory OC'ed.


Also if you want the best $/Kh/s/watt go for this setup:

6 x R9 270 ($180) - which is 450kh/s = 2,700 Kh/s for only over a grand.

and you only need 1-8pin cable per card at around 180W each so basically you have 180x6= 1080W x 92% PF (Platinum PSU) = 1200W PSU Requirement only

Looking forward to play with R9 270s.