The Apple Macbook for 2012

The Apple Macbook for 2012

I am sorry, I don't get what you mean by "in what sense"  but to give you a general answer, The new MacBook air most probably has intel ivy bridge processor, the 15-inch MacBook Pro is expected to be slimmer and thinner and this seems to be the case and another detail revealed is of a higher-resolution display.

Some of the claimed 15-inch MacBook Pro specs and features include a 2.6GHz quad-core Intel Core i7 processor, 16GB DDR3 SDRAM, 750GB hard drive, 15.4-inch LED-backlit glossy widescreen Retina display with resolution of 2560 x 1600 and AMD Radeon HD 7770M graphics processor. Of course much of this could be different depending on personal configurations. Other inclusions detailed are a Face Time HD camera, four USB 3.0 ports, Thunderbolt port, FireWire 800 port, Ethernet port, SDXC card slot and Bluetooth 4.0.

Dimensions of the 15-inch MacBook Air are said to be 13.52-inches x 9.26-inches x 0.74-inches and it weighs in at 4.7 pounds as opposed to the current MacBook Pro version which weighs 5.6 pounds.

Below is a leaked pic of the MacBook air specs

Hope I rounded up what you were looking for