Originally Posted by JackCY
Wasn't that said here on OCN and then reposted on reddit and now in some wanna be news?
Many shops have already commented on being stocked well for the launch.
Good question! Let's go digging.
- Article linked is WCCF. That's never a good sign, sorry OP.
- The article links to /u/sirbeers on reddit... who has deleted their account. Not helpful at all.
- The article follows that with a link to /r/AMD. Jackpot! That post reads:
Originally Posted by /u/Carnby17
I just left MicroCenter in Overland Park, Kansas and got confirmation they are receiving 100 RX 480 units on the 28th of June. They confirmed that they will be on shelves June 29th for sale.
They also confirmed for the 1080/1070 launch they only received 4/7 cards for that day. They are incredibly impressed how many cards they are expecting to receive for launch day.
Edit: Added their launch quantity for 1080 units.
Which is... Not helpful in the slightest, really. It's pretty pointless to compare the two GPUs. One cost $700 at launch, and the other costs $200. Pretty big difference. The $200 tier, I believe, sees the highest sales volume of all GPUs out there (which is why AMD is targeting it among other reasons) which means they'll need more GPUs to satisfy a dramatically higher demand (golly!)
Yields are almost certainly better though. If I pull some numbers out of my butt, based on the estimated amount of stream processors (2304, about midway between a 7970 and R9 290 and their rebrands) we get a die that's about 380mm2
on 28nm. Based on the dimensions of a 14nm Samsung transistor compared to 28nm TSMC, we get 64nm x 78nm compared to 90nm x 118nm, or a shrinkage by about 53%. That puts this die somewhere around 200mm2
. Has AMD given a number yet? I'm not sure. Either way, it's about 2/3 the size of GP104's roughly 300mm2
Past that... I have no idea. There's some statistical modeling for yields, but getting solid numbers from companies will be nearly impossible for anything made in the past 20 if not 30 years. It appears however that there is an inverse relation, so we could assume that a 50% larger die will have 33% lower yields than another die. But Samsung's and TSMC's fabs are very different for starters, and there's so much that goes into this that it's impossible to know for sure. Anybody who works with any sort of lithography equipment, please speak up.