AMD Cayman info (or rumor)

[RPGWiZaRD]

HD5870 was more power efficient than HD5770 in terms of performance/watts. Sure what you say might be the case, but just pointing out that it doesn't have to be the case.

Well Juniper vs Cypress isn't a good direct comparision, my point was if you take the same card with same specs, only add more SPs or other units and perhaps add higher clocks too, then you'll get more inefficiency (performance won't improve as much as power consumption increases). Need internal changes if you want to improve efficiency as well. And before some1 counters with this, sometimes only rearranging the components could help too if there's a bottleneck somewhere.