Originally Posted by maarten12100
The whole power of which a part is non green for a virtual product still bafles me.
You'll get best hashrate/J with the 7790 as it is based of a improved version of GCN 1.0
That's how the world economy works... We spend tons of finite energy and resources and get virtual dollars, euros, etc. in our bank accounts, which are founded on 'the promise of future growth' (aka. debt/loans). At least Bitcoin is finite, and based on real, measurable work.
7790 probably beats all others except maybe 5970/6990/7990, just make sure to UC the memory for power savings even if you OC the core. Also do some calculation on one of those online bitcoin profitability calculators. I stopped mining a long time ago, here in Austria electricity is ~25c/kWh (Euro) or ~$33/kWh
. Not even remotely worth it.