So based on today's rumor a poster on GAF threw up this nice summary.
Orbis - CPU: 8-core Jaguar @ 1.6GHz - GPU: ~ Radeon 7970M in power, 18 compute units @ 800MHz (I'd seen 8830-8850 rumoured but also comments that those - were fake) - Memory: 4GB GDDR5 @ 192GB/s bandwidth - 512MB reserved for OS -> 3.5GB for games - Extra: "Compute module" Durango - CPU: 8-core Jaguar @ 1.6GHz - GPU: ~ ? in power (DF says potentially weaker than Orbis), 12 compute units - Memory: 8GB DDR3 @ 68GB/s bandwidth - 3GB reserved for OS (rumoured it may be down to 1-1.5GB though) -> 5-7GB for games - Extra: "ESRAM" (small amount of faster RAM, 102GB/s bandwidth), other custom chips |
To which a very reputable poster.. lherre said "Some things here aren't accurate at all but I won't say which ones"
My guess? the GDDR5 as well as some various other RAM and estimations on the GPUs and/or speeds of various things. He's also been known to state that people are expecting too much.