UPDATE: The laptop is now official and available for pre-order. There are two JZ models, the G750JZ-DS71 and G750JZ-XS72, as well as models with the GTX 870M and 860M.
Asus has refreshed the G750 Republic of Gamers (RoG) 17.3-inch gaming notebook series by adding the next-generation Nvidia GeForce GTX 880M graphics card to it.
The model with the GTX 880M is called the ASUS G750JZ, as opposed to the currently available G750JW, JX, and JH models with the Geforce 700M-series GPUs. According to previously leaked benchmarks, the GTX 880M should perform about 12 percent faster than the GTX 780M. That’s not a big improvement, but it’s a nice one considering both video cards are based on the same Kepler GK104 chipset and have the same number of unified shaders – 1,536, as well as 32 ROPs and 128 TMUs. Nvidia has achieved this improvement by clocking the GPU higher, from 823MHz to 954-993MHz.
It’s interesting that the specs of the G750JZ list the next-gen Nvidia graphics with 4GB of GDDR5 video memory, whereas the leaked info shows the GTX 880M has 8GB of VRAM. Maybe the card will come in 4GB and 8GB variants. Both are quite sufficient for all modern games.
Other parts fo the G750JZ are the same as on its precursors. It has Full HD display resolution, the 4th Gen Intel i7 Haswell quad-core processor, four memory slots for up to 32GB of RAM, dual hard drive / solid state drive bays, and optical drive. The components are encased in a stealth fighter inspired chassis made of aluminum.
We have no info on availability date and pricing, but an Australian online store Line Link lists a G750JZ-T4013H high-end configuration with the Intel i7-4700HQ, GTX880M-4G, 32GB RAM, and dual 256GB SSDs for $3,425 AUD which translates to about $3,100 USD.
Source: ASUS ROG Forums