If you just read the previous news-post from HP, you might have noticed that HP includes a configuration option graphics wise as NVIDIA GTX 980 or AMD Radeon R9 380 discrete graphics.
It is interesting as there are no specs available, but this is the first time a company names the product. Whether or not the R9 380 is a re-spin product based on Hawaii or even if it's Tonga, or a new silicon is unknown at this time.
We can speculate in each direction, but we'll just wait until HP releases specs on that part. But interesting to see this mentioned in a press-release it most certainly is.
Powerful and stylish, the HP ENVY Tower is designed for content creators who need high-performance processors and strong graphics capabilities for editing videos and photos. For performance, customers have the choice of up to NVIDIA GTX 980 or AMD Radeon R9 380 discrete graphics with support for fourth generation Intel Core i5 and i7 processors or next generation AMD A-Series A8 through FX processors.