These are hard facts
720p is 1280×720 = 921600 pixels
1080p is 1920×1080 = 2073600 pixels
2073600 /921600 = 2.25
Therefore PS4 is achieving over double the performance of XBOX ONE in Call of Duty Ghosts.
These are hard factual numbers and cannot be disputed.
The PS4 is also 100$ less than the XBOX one. This is also a factual statement.
The PS4 value is clear to see here folks..