GTS brakes vs GTS4.0 brakes

I am looking at the German configurator, and it looks like the new 4.0 gets better brakes:

• standard S brakes (which is also the old 2.5 GTS AFAIK): 4-piston monobloc aluminium fixed caliper brakes front and rear, discs internally vented and cross-drilled, disc diameter (front/rear): 330 mm/ 299 mm
• GTS 4.0 brakes on German site: 6-Kolben-Aluminium-Monobloc-Festsattelbremsen vorn und 4-Kolben-Aluminium-Monobloc-Festsattelbremsen hinten, Verbund-Bremsscheiben mit Bremstöpfen aus Aluminium mit Durchmesser 350 mm vorn und 330 mm hinten, innenbelüftet und gelocht, Bremssättel rot
• and for comparison, GT4/Spider brakes:
  6-piston aluminum monobloc fixed-caliper brakes at the front and 4-piston aluminum monobloc fixed-caliper brakes at the rear, composite brake discs with aluminum brake chambers, diameter of 380 mm

I'm pretty sure they are 992 C2 brakes (although sometimes Porsche uses different width rotors, so they might not be identical):
6-piston aluminium monobloc fixed brake calipers at front, 4-piston aluminium monobloc fixed brake calipers at rear, (350mm f / 330mm r) red brake calipers