Nikon Asia published a video showing the Nikon D4s XQD memory card speed performance test during shooting and transferring files to a computer.
Nikon D4s continuous shooting speed is approximately 11 frames per second (fps). The XQD memory card (which lets you take full advantage of the performance and speed of the D4S) can record up to 67 uncompressed NEF images, or more than 200 JPEG images in a single continuous burst. You can watch the 4-min video below and see the results.
Nikon D4s ($5,996 – Amazon | B&H | Adorama) features 16.2-megapixel FX-format CMOS sensor, EXPEED 4 processor, 51 point AF system, ISO 100 to ISO 25,600 native sensitivity, faster 11 fps continuous shooting. See more details on the official announcement | sample images | users manual here.