The Graphite 760T does look very much like the 230T, but is much taller and deeper, and it comes with a much bigger feature set since it is targeting a completely different audience.
Combining plastic and fine metal mesh, its front sports a straight and edgy design, while the rear comes with a bottom-mounted PSU bay and the 750D's internal structure, which makes sense as the case clocks in at a very similar price.
Only one visual feature, both side panels come with large, clear plastic elements and a big latch to hold them in place. While you have a window on the opposite side as well, it is also underlined by a solid black panel, which means that it is there to complete the look of the case, and it does so very nicely.
A dust filter made mainly of metal mesh and with a plastic frame to reinforce it is held in place by push pins, so you can easily take it off for cleaning and easy access to both embedded 140 mm fans in the front. These are not cheap OEM but actual retail fans, which adds some nice value to the chassis considering it overall price. There are three 5.25" bays in the top. Corsair equipped the bay at the very top with a stealth cover, which a well-known brand hasn't done with a high-end chassis for a while now; that is, to my knowledge. You will also find the I/O close to the chassis' top edge. It consists of the usual audio in- and output and two USB 2.0 and two USB 3.0 plugs. The 760T also ships with a fan controller.
The PSU bay in the bottom of the rear comes with two sets of mounting holes for you to install the power supply with the fan facing either up- or downward. Above the bay are the nine motherboard-expansion slots. You will also find two pre-stamped openings for water-cooling tubes to the left. These may be broken out for such a setup, but there is little reason to do so given the Graphite 760T comes with several water-cooling possibilities. There is also another AF140L fan in the very top, which is there to push hot air out the back of the chassis.
The entire top of the 760T is one gargantuan air vent. You may install three 140 mm fans or a 420 mm radiator here. Corsair also includes a solid cover for the vent in case you decide not to install anything there. It is held in place by numerous small magnets. While it does hold well, it would have been nice to see the Obsidian 750D's much stronger magnet lining for the cover instead.
Tipping the case on its side reveals one more fan-mounting possibility on the floor of the 760T and a dust filter for the power supply bay. This filter may be pulled out the back of the chassis for easy cleaning and without putting the chassis down on its side.