Photographs of what is allegedly the new MacBook Pro logic board reveal Nvidia GT Chipset might be coming to Apple’s laptops.

Apple is expected to announce Mac hardware updates at its WWDC keynote today, and M.I.C Gadgets reports that this announcement could include a 15in MacBook Pro with no change to its appearance. It was previously reported that the MacBook Pro would be completely redesigned.

According to the report, which refers to two posts from Chinese from WeiPhone.com, the 15in MacBook Pro will be available with a 2.3GHz, 2.5GHz or 2.7GHz Ivy Bridge processor, and will use Nvidia’s GeForce GT 650M graphics card with 1GB GDDR5 graphics memory.

These photographs are the latest addition to the rumour that Apple is planning to switch from AMD GPUs to Nvidia graphics in the new MacBook Pro.

In May, a number of reports emerged noting that references to the Nvidia GeForce GT 650M graphics card appeared in an OS X beta code.

According to Nvidia, the GeForce GT 650M offers incredible dedicated graphics performance for gaming and other tasks, all while apparently being battery-life efficient.

Tune in to our live feed of Apple’s keynote at WWDC this evening at 6.00pm here.