The manufacturer suggests Colorful, to its new GeForce GTS450 iGame a slightly different way than it would do most to improve air circulation. The manufacturer has compressed the PCB of the card and thereby resulting free surfaces are provided with through holes. So you create over the whole PCB distributed differently sized holes to be responsible for improved air flow around coils and power walking. This one has 128 MB instead of eight GDDR5 chips, only four 256 MB GDDR5 installed 2Gbit chips, to be shared but still has a 128bit memory bus, but will produce less waste heat.
When the capacitors reaches the manufacturer of High-C POSCAP variants, and 3 +1 phase power converters from ON-Semi. To operate well, a 6-pin PCI-e power connector is provided on the card. Other changes were not specified, which sometimes can from traditional Nvidia GeForce GTS450 go out specifications. For cooling at the end a custom built single-slot solution, to which there is currently no further details. Nor has it become an expected sale price and expressed start.
source: Techpowerup.com