The WinFast PX8800GT

The PX8800GT is a standard reference design card from NVIDIA with Leadtek branding and CGI character. The PCB is 22.8cm in length, which is the same as the 8800GTS. There are two Dual-Link DVI ports and one universal seven pin port for TV output. Oddly, a six-pin power connector supplies this PCI-Express 2.0 card instead of the eight-pin power standard. Only one connector is available for SLI setups. Triple and Quad GPU configurations only appear on higher-end cards, such as the GTX.

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The reference design cooler is made of an aluminum backbone with a copper GPU contact surface. The standard "thermal cakes" connect the memory and power chips to the aluminum heatsink. Copper heat pipes assist heat flow from the GPU core to the aluminum fins. A variable speed fan (4-pin/.8A) forces airflow across the heatsink to facilitate cooling. The diagonal aluminum fins and open side port divert the hot air into the main air space of the case. Cramped cases with insufficient ventilation may have a problem with overheating.

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Under the NVIDIA single-slot cooler resides eight Qimonda 32-bit GDDR3 chips circling the 65nm G92 core. Each 1ns chip is 64MB and composes the 256-bit 512MB memory bus. A digital four-phase (three phases used) PWM controller from Primarion handles power for the board, while an Intersil PWM controller supplies the GDDR3 chips. The 2.0v memory is clocked at 900 (1.8GHz), but it is rated for a 1000 (2GHz), making for an ideal out-of-box overclock.

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