PCTuning fórum

JJ píše:Díky,
no zrovna denska jsem se bavil s prodejcem EIZO monitorů a říkal, že ATIny kupovat nemám, že s 2D obrazem na tom nejsou dobře. Na druhou stranu, co teda kromě Matroxů??? Otázka je, jeslti bych to jako amatér poznal.
Co konkrétně jsou "nový radeony", který to jsou? A PEG je PCI-e? To bych potřeboval.
Díky...

JJ píše:O analogový výstup mi až tak nejde. podstatné je pro mne DVI.
Kteří výrobci jsou považování za kvalitní?
Mne zatím zaujala tato karta:
Sapphire Atlantis ATI Radeon X1300 256MB, PCI-E

JJ píše:Jo, a ještě by mě zajímalo, jak zjistím, jestli je ta karta desetibitová nebo osmibitová. Potřebuju nějakou desetibitovou a nevím, kde to zjistit.

Díky

Although we've been used to 10-bit per component RAMDAC's in previous graphics parts, this was limited to just the DAC, however with Avivo products there are dual 10-bit per component pipelines prior to the DAC's, operating 1.07 billion colours as opposed to 16.7 Million on standard 8-bit display pipelines. The pipelines perform the following functions at 10-bit precision, and an apply to both video playback as well as standard 2D or 3D operations where needed:

* Gamma Correction
* Colour Correction
* Video Scaling

Each of the 10-bit display pipelines have the complete set of post processing functionality, matched to the properties of the particular display output they are ultimately driving. A single video source can be displayed on two independent outputs each with their own scaling, gamma correction and positioning again, tailored to the output that each are displaying on.

The display engine also features the hardware that actually drives the display output, and Avivo has a number of enhancements here. Dual 400MHz 10-bit per component DAC's remain, as in previous graphics implementations, however this time the TV-Out display engine has been lifted directly from ATI's consumer electronics Xilleon processor (this engine can be found to be driving the displays of many Sony televisions, for example). The last generation of Radeon products only integrated a single link, 165MHz, TMDS transmitter for DVI output, however Avivo products will feature two integrated dual link transmitters, hence two digital panels can be independently driven to 2048×1536 @ 75 Hz or 2560x1600 resolutions.

When an analogue output is used the 10-bit processed image from the display pipeline is sent to the 10-bit RAMDAC's and the image is re-quantized down to 8-bit for display, however the extra two bits are used to, in theory, produce a better resultant 8-bit output. In the case of digital displays, the 10-bit data goes through a spatial and temporal dithering process for 8-bit or 6-bit displays (most modern desktop LCD panels are 8-bit, while many notebook panels remain at 6-bit), however newer 10-bit and 16-bit panels can be driven directly from the Avivo digital display outputs - in the case of 10-bit panels it is kept in the same format as was in the display pipeline, and is outputted as is, and with 16-bit displays the colour depth is up-scaled, although it will remain at the 10-bit processing level.