On Behalf Of i4images <snip> > > When I try to use higher resolutions to get more real estate > it will display at that but the highest refresh rate I can > get is 75mhz which I feel is a little low for long working. > Would a larger 128mb or 256mb card allow me to use the > monitor at the higher resolutions while keep a refresh rate > of 80hz at highest res as a minimum.
Ian, Memory on your graphics card is not the limiting factor to the refresh rate at any resolution... It is the 'bandwidth' of the RAMDAC (typically) on your card... Consider this to be a bit like memory speed or disk speed or similar. E.g. it can only process x pixels per second, so as you up the resolution (with more pixels), it can do fewer full screens per second. Hence, as resolution, the vertical refresh rate goes down. I believe the RAMDAC's bandwidth is described in MHz. However, I am puzzled - if you have a flat screen, I would have expected you to require only 60Hz refresh... My NEC 1880SX's actually decrease in quality above this figure (on VGA connectors, not DVI). In fact, DVI connectors probably break all the rules about 'RAMDAC' bandwidth (no digital-to-analogue conversion should be required) - but there will still be some limits on bandwidth. CRT users however will typically find that refresh rates over 75Hz are better, as you say. Hope this assists, Nij =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
