TechPowerUp got its hands on photos of a new ultra-slim single-slot GeForce GTS 450 graphics card from Colorful. This model has quite a lot of neat features, all big and redundant components on the PCB were replaced with more compact yet higher-grade components and another interesting thing is that the chokes are suspended in the opening of the PCB to improve ventilation.
All cylindrical capacitors are replaced by server-grade flatbed high-C POSCAP capacitors. The card uses a simple 3+1 phase VRM, driven by an ON-Semi made controller. The chokes used don't exactly sit on the PCB, rather, they're suspended in openings of the PCB, by their leads, this improves ventilation around the chokes, and reduces the size of the chokes on the obverse side, reducing the obstruction caused to the cooler. The PCB itself is well "ventilated". All free-space on the PCB is used to carve out vents for the cooler to draw in air from.