One of the talking points at Computex was that supply of AMD's Radeon RX 570/580 cards and some other video card models is as good as exhausted due to very strong demand from cryptocurrency miners. A couple of days ago a rumor popped up that both AMD and NVIDIA are working on dedicated mining cards and now VideoCardz published details of one of the first upcoming Pascal GPU mining solutions.
It's not clear who makes this box but it features eight NVIDIA GP106-100 mining cards, which were specifically designed for mining purposes. The cards are passively cooled, they lack display outputs and have been balanced to maximize mining return.
Other specifications of the system include an Intel Celeron Mobile processor, a custom motherboard, 4GB DDR3 memory and a 64GB mSATA SSD. All this is housed in a custom enclosure with a total of nine 80mm high-power fans that spin at 5800RPM.
No apples-to-apples testing was done but VideoCardz estimates this dedicated mining rig performs about 0.5 Sol/s/W better for ZEC mining than a system with run-off-the-mill hardware. VideoCardz's system did about 1.867 Sol/s/W whereas this special GPU mining system promises to do 2.381 Sol/s/W:
We did some experiments with ZEC mining on GTX1080+1080+1070. Such system pulls around 750W from the socket (TDP optimized) with ~1400 Sol/s. This solution requires 1050 Watts for 2500 Sol/s. So it’s 0,5 Sol/s/W better. Not a huge difference, but I guess it all depends on the price. Also, bear in mind these cards (and such system) will have low resale value, unless they find better purpose (Folding@Home?) after GPU mining becomes unprofitable.