OK, found the full specs:
http://www.microsoft.com/en-us/news/download/presskits/surface/docs/Surface3ProFS.docx
It still uses the HD4400 chip and same i5 processor as before, only the i7 is faster. So it's basically slower at the same price point as running a 2160x1440 resolution on the same exact HD 4400 compared to the 1920x1080 screen of the SP2. I guess i'm waiting for the SP4.
Also the N-Trig Pen Digitizer only supports 256 levels of pressure. The Wacom Digitizer in the SP2 supports 1024 levels of pressure, while the Wacom Cintiq Companion supports 2048 levels of pressure. It might seem trivial, but for Artists this face in the SP3 is a deal breaker
http://www.microsoft.com/en-us/news/download/presskits/surface/docs/Surface3ProFS.docx
It still uses the HD4400 chip and same i5 processor as before, only the i7 is faster. So it's basically slower at the same price point as running a 2160x1440 resolution on the same exact HD 4400 compared to the 1920x1080 screen of the SP2. I guess i'm waiting for the SP4.
Also the N-Trig Pen Digitizer only supports 256 levels of pressure. The Wacom Digitizer in the SP2 supports 1024 levels of pressure, while the Wacom Cintiq Companion supports 2048 levels of pressure. It might seem trivial, but for Artists this face in the SP3 is a deal breaker