There is a benchmarkresultaat published of an unannounced Nokia smartphone with quadcore processor. The used soc is probably a for more Snapdragon 400. Hence the phone is probably in the mid-range segment.
The data comes forward in an entry on the site GFXBench, a site that the gpu performance in DirectX on Windows Phone can measure. The benchmark shows a screen resolution of 1280×720 pixels, a resolution that Nokia till now has not used. The Lumia 920 and 925 have a resolution of 1280×768 pixels.
The soc seems to be a Qualcomm Snapdragon 400, a MSM8x26. Which has four processing cores with Cortex-A7 core, less powerful than the Krait core used in the current Lumia models; the current midrange models use a MSM8227 Snapdragon 400. The gpu of the new model is an Adreno 305. The benchmark requires a working memory the size of at least 1GB; a doubling compared to the 512MB of the current midrange models. The phone runs on Windows Phone 8 and not 8.1. The support for this processor is not yet in the current version of Windows Phone 8, so maybe in an update is added. The phone probably has support for 4g.
Nokia has announced are expected to soon another new Lumia: an instance with 41-megapixel camera, namely the EOS. Of them came recently, photos from. Nokia would have a whole line of Windows Phones have ready for release this year, including a large phone.
A current mid-range model of Nokia, the Lumia 620