Quote from: Mabsark on December 14, 2014, 05:40:58 PM

Quote from: dogie on December 14, 2014, 05:08:48 PM

No, no they're not. Its just the test range displayed is at the very low end of the chip to demonstrate best W/Gh. The actual release W/GH will be significantly higher, as will the GH/chip. But even at .25 at chip, there are already chips that can achieve that at low clock speeds, and many more to come.

According to previous updates, the production chips would have have greater efficiency:

Quote from: amhash on November 28, 2014, 06:35:30 AM

Update

Some details of BE300:

Process: tsmc 28nm hpc

Package: fclga (5mm x 5mm)

Normal Mode:
   0.7v vdd
   6gh/s per chip
   8gh/s-12gh/s per chip for mass production
   0.343w/g on chip
   ~0.3w/g on chip for mass production

Low Power Mode:
   0.55v vdd
   4.5gh/s per chip
   6gh/s-9gh/s per chip for mass production
   0.225w/g on chip
   ~0.2w/g on chip for mass production

The schedule of BE300 producing: First batch production will be done next Feb.

So, why are you assuming that they will be less efficient?

You're missing the point. There are 4 variables, not 2. W/GH, GH/chip and $/GH [and so $/chip]. In order to maximise $/chip, GH/chip will be raised much higher for a retail product than you see in those tests. That in turn, increases W/GH.

I'm not saying the chips can't achieve those lower W/Gh, I'm just saying don't be disappointed when the products based on those chips aren't .25W/GH. [This is of course ignoring that chip W/GH also isn't = to product W/GH.]