2MH/ s performance with a Powercolor 7990 c 12, · This card is basically two 3GB 7970’ s on one board. According to this Litecoin hardware comparison, the 7990 is at the top of the list with a max of ~ 1518KH/ s, while the 7970 lies at about half the hashrate Both the 7970 and the 7990 take up two card slots in the c 17, · AMD Radeon HD 7990 Scrypt Mining – Litecoin – UPDATE Update My last post was mainly related to setting up the HD 7990 and some of the heating issues I.
So, I had a bunch of 7990s left over from the litecoin mining days, and these cards came with a 3 year warranty. Litecoin Calculator; Litecoin Charts; Submission Rules.
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