- Apr 17, 2011
- 11
- 0
- 18,510
Hey guys!
My first post here
ok so i have a 21" sony CRT which i prefer using in QXGA@75Hz on a DG45ID onboard graphics
The bottleneck is RAMDAC on the graphics system running at 350 Mhz while pixel clock at QXGA/75Hz hits 342 Mhz already
Besides i run this via a DVI to VGA dual link passive adapter which is rated for only WUXGA@60Hz. I looked at displayport to VGA active adapter and that seems to be limited to the same extent i.e. WUXGA, atleast until we move to Displayport 1.2 specifications.
Both above points lead to blurriness in the picture especially text, which i have loads of work to do with.
So i was hoping for getting sharper text at QXGA and better colors 12bpc
That led me to ATI 4850 which on the specification page says has a 30bit RAMDAC i.e. billions of colors. Plus i don't doubt the text clarity which comes with high quality ATI cards any more than Matrox cards.
I looked at more latest offerings and the 5770 (specifically Asus EAH5770 which has D-sub/VGA port without a converter) card doesn't mention 30bit RAMDAC for VGA output?
(both ATI 4000/5000 series have Display port 1.1a. 6000 series has Displayport 1.2 but i can't locate a DP1.2 to VGA cable yet)
What's the best way to go forward in this situation to get a billion colors at QXGA? i guess adapters are out!
So i want to ask
1. Do ATI 5000/6000 series have 30bit - 400 Mhz RAMDACs like the ATI 4850 ? Is it too trivial to mention going up the series?
2. Will the 30 bit 400 Mhz RAMDACs provide a billion colors via VGA in 5000/6000 series like ATI 4850?
3. Does deep-color in specifications of ATI 5000 series mean that it has a 30bit RAMDAC which will output 30 bit color via D-Sub/VGA port?
4. If i pick a 6000 series card for Display Port 1.2 then when will the DP1.2 to D-sub cable be available to carry the analog signals precisely?
5. Does ATI Control Centre enable 10bit color for 4850? i mean does it have the driver support working already? i read it was a hit or miss.
Looking forward to resolving this ASAP
My first post here
ok so i have a 21" sony CRT which i prefer using in QXGA@75Hz on a DG45ID onboard graphics
The bottleneck is RAMDAC on the graphics system running at 350 Mhz while pixel clock at QXGA/75Hz hits 342 Mhz already
Besides i run this via a DVI to VGA dual link passive adapter which is rated for only WUXGA@60Hz. I looked at displayport to VGA active adapter and that seems to be limited to the same extent i.e. WUXGA, atleast until we move to Displayport 1.2 specifications.
Both above points lead to blurriness in the picture especially text, which i have loads of work to do with.
So i was hoping for getting sharper text at QXGA and better colors 12bpc
That led me to ATI 4850 which on the specification page says has a 30bit RAMDAC i.e. billions of colors. Plus i don't doubt the text clarity which comes with high quality ATI cards any more than Matrox cards.
I looked at more latest offerings and the 5770 (specifically Asus EAH5770 which has D-sub/VGA port without a converter) card doesn't mention 30bit RAMDAC for VGA output?
(both ATI 4000/5000 series have Display port 1.1a. 6000 series has Displayport 1.2 but i can't locate a DP1.2 to VGA cable yet)
What's the best way to go forward in this situation to get a billion colors at QXGA? i guess adapters are out!
So i want to ask
1. Do ATI 5000/6000 series have 30bit - 400 Mhz RAMDACs like the ATI 4850 ? Is it too trivial to mention going up the series?
2. Will the 30 bit 400 Mhz RAMDACs provide a billion colors via VGA in 5000/6000 series like ATI 4850?
3. Does deep-color in specifications of ATI 5000 series mean that it has a 30bit RAMDAC which will output 30 bit color via D-Sub/VGA port?
4. If i pick a 6000 series card for Display Port 1.2 then when will the DP1.2 to D-sub cable be available to carry the analog signals precisely?
5. Does ATI Control Centre enable 10bit color for 4850? i mean does it have the driver support working already? i read it was a hit or miss.
Looking forward to resolving this ASAP
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