XFX Triple SLI - 8800 Ultra's in 3 Way SLI

 

3-way NVIDIA SLI-Ready GPUs:
NVIDIA GeForce 8800 Ultra
NVIDIA GeForce 8800 GTX

3-way NVIDIA SLI-Ready MCPs:
NVIDIA nForce 780i SLI for INTEL
NVIDIA nForce 680i SLI for INTEL

3-way NVIDIA SLI-Ready Power Supplies:
Please visit the SLI Zone Certified SLI-ready Power Supply website and choose a power supply model from the section For “Three GeForce 8800 Ultra or GeForce 8800 GTX.”

3-way NVIDIA SLI Cases:
Please visit the Please visit the SLI Zone Certified SLI-ready Cases website and choose a cases from the section For “Three GeForce 8800 Ultra or GeForce 8800 GTX.”

3-way NVIDIA SLI Connector:
3-way SLI requires a unique SLI connector in order to operate properly. These connectors may not have been included with your previous purchase of SLI-ready components or PCs. PCs specifically sold as 3-way SLI PCs will have this connector included and preinstalled.

* Split Frame Rendering (SFR), the first rendering method. This analyzes the rendered image in order to split the workload 50/50 between the two GPUs. To do this, the frame is split horizontally in varying ratios depending on geometry. For example, in a scene where the top half of the frame is mostly empty sky, the dividing line will lower, balancing geometry workload between the two GPUs. This method does not scale geometry or work as well as AFR, however.

* Alternate Frame Rendering (AFR), the second rendering method. Here, each GPU renders entire frames in sequence – one GPU processes even frames, and the second processes odd frames, one after the other. When the slave card finishes work on a frame (or part of a frame) the results are sent via the SLI bridge to the master card, which then outputs the completed frames. Ideally, this would result in the rendering time being cut in half, and thus performance from the video cards would double. In their advertising, NVIDIA claims up to 1.9x the performance of one card with the dual-card setup.

* SLI Antialiasing. This is a standalone rendering mode that offers up to double the antialiasing performance by splitting the antialiasing workload between the two graphics cards, offering superior image quality. One GPU performs an antialiasing pattern which is slightly offset to the usual pattern (for example, slightly up and to the right), and the second GPU uses a pattern offset by an equal amount in the opposite direction (down and to the left). Compositing both the results gives higher image quality than is normally possible. This mode is not intended for higher frame rates, and can actually lower performance, but is instead intended for games which are not GPU-bound, offering a clearer image in place of better performance. When enabled, SLI Antialiasing offers advanced antialiasing options: SLI 8X, SLI 16X, and SLI 32x (8800-series only). A Quad SLI system is capable of up to SLI 64X antialiasing.