Please post brands and models of 7870's or 270x that give 450 Kh/s and above...

[Wipeout2097]

There's a lot of variation in these cards and I guess it has to do with vram speed, quality and programmed latencies on the bios. Since there isn't afaik a way to program those timings with software or bios mods, one has to handpick cards.

Please post as much info as you can from brand, model, hashrate,miner settings, voltage needed, power usage ... Thanks

[CoinPopper]

MSI

[Wipeout2097]

Which msi?

[kalus]

stock sapphire.  the one with the purple robot on the box.  

[mrmork666]

asus r9270x-dc2t-2gd5
gives you 460-480 khs
and runs cool about 65c

https://bitcointalk.org/index.php?topic=416625.0