Trident Microsystems, Inc.
Trident was a graphics and audio chipset manufacturer for the IBM PC and its compatibles that started up in 1987. Cards based on their graphics chipsets are ubiquitous having been sold to OEMs in large quantities to be installed in budget-oriented PC clones, and are generally considered to be low performers.
Don't be fooled by the model numbers that Trident uses for its ISA chipsets. The TVGA8900D is about the fastest chipset they produced for the ISA bus (and it was an exception to the general rule about Trident-based cards being slow - this one was decent), followed by the 8900C. The 9000 range were designed to be used on even lower-budget video cards and for motherboard onboard graphics.
Trident produced just one audio chipset, the 4DWave, which worked on the PCI bus and can be found on several sound cards but is more commonly seen embedded onto motherboards in laptops.
The table below lists all the Trident chipsets/cards here at DOS Days (in chronological order):
| ISA / VLB Graphics Chipsets/Cards | PCI Graphics Chipsets/Cards |
|---|---|
| TVGA 8200XL (aka LX8200) chipset (1987) TVGA 8800 chipset (1988-1989) TVGA 8900 chipset (1989-1992) TVGA 9000 chipset (1991-1992) TVGA 9200 chipset (1993) |
TGUI 9440 (1995) TGUI 9680 (1995) ProVidia 9685 3DImage 9750 Blade3D 9880 |
| PCI Audio Chipsets |
|---|
| 4DWave DX (1998) |
Other Graphics Chipsets
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TGUI9680 / TGUI9680-1
The TGUI9680 is a "GUI and video accelerator", supporting FPM or EDO DRAM memory from as fast as 45ns down to 80ns on a 64-bit bus. The chip itself has an integrated 24-bit TrueColor DAC It supports resolutions up to 1280 x 1024 in 256 colours, 1024 x 768 in 64,000 colours, or 800 x 600 in 16.7 million colours. On the VESA Local Bus it runs at 50 MHz while on PCI it runs at 33 MHz. The TGUI9680-1 is a low-power version of the TGUI9680, but also adds acceleration for Cinepak, Indeo and MPEG CODEC standards. The TGUI9680 can be found on the following graphics cards:
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Audio Chipsets
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