Spec wise, it looks very similar to the N8 except the processor is a little faster it runs at 700 MHz the N8 runs at 680 MHz. The other difference is on the back of the phone the 12mp auto focus has been replaced by an 8mp EDof camera, and the Xenon flash has been replaced by a dual LED.
Nokia T7-00 comes with Symbian^3 OS, 700MHz ARM 11 processor, sporting a 3.5 inches AMOLED touch screen with 360 x 640 resolution, equipped with a 8 megapixels rear-facing camera with dual-LED flash, a front-facing VGA camera, 720p HD video recording capability, micro-SD card slot for memory expansion up to 32GB, Bluetooth 3.0, micro-USB, USB On-the-go support, 802.11 b/g/n Wi-Fi, 3G (TD-SCDMA) capabilities.
The only proof I could online from an official Nokia source is this page from Nokia China.
Want a little more info on the T7 here is a the best Video I could find online about it.
Via: Gadgetian Nokia News