We should point out that the photos are from China and are allegedly dummy units. This means that the device pictured isn’t the actual working Nexus 8 tablet, but rather a fake unit designed to resemble the tablet for promotional or just for measurements purposes. According to the measurements, the tablet is about 200mm in length which does fit an 8-inch 4:3 tablet nicely.
The Geekbench 3 listing reveals that the tablet is powered by an octa-core processor clocked at 1.3GHz. No word on who is making the processor, but chances are we could be looking at Qualcomm or MediaTek, unless Google decides to surprise us all with an Intel processor. It has also been revealed that it is running on Android 5.1.1 Lollipop. Take it with a grain of salt for now but hopefully Google will have something official to announce soon.