Quote from: boondock66 on December 03, 2013, 08:28:28 PM

hi, what is the stability of your card like? what os are you running on and which version of catalyst and amd sdk? i found this thread the other night https://litecointalk.org/index.php?topic=3648.0

i know it relates to the 7970 card but the driver version may have the same effect on the 280x

i have just purchased sapphire's version of this card, im just waiting for a couple of components before i can start experimenting

719kh/s seems pretty good to me though

It's stabe, been running strong for the past 4 days without a hiccup. windows 7 64 bit, catalyst 13.11 not sure about sdk.

Quote from: JohanM on December 03, 2013, 08:34:33 PM

Way back in 2010 when i was mining with a 5870 card, the best result was tuning down memory frequency and tuning up gpu freq.
At same temp it gave higher hashrate

That's true for bitcoin mining, right now i'm working on ltc and multipooling with middlecoin, where memory is more important.

Quote from: sjh on December 03, 2013, 08:41:29 PM

As a newbie, how long will it take before you have mined 1 BTC with 716kh/s?
I know it will be long but how long?

I'm planning to setup a duo R9 290x.

I haven't done the math yet, i'm averaging $14 a day by mining alt coins and converting to btc