Re: SVGA cards on PCI

["Bender, Bernhard" <br@elsa.de>]

Hi,

I simply cannot keep quite on this one...


>>>
Since I've explained all this... here's a little kicker.  At lower
resolution/color depth combos,  EDO DRAM is FASTER than VRAM.  This is 
because
EDO DRAM tends to have faster memory accesses... If the display refresh
requirements are modest, this still leaves MORE bandwidth left over for 
host
and graphics accesses.  Only when you get into fairly high resolution / 
color
depth / refresh rates does the inherently slower VRAM catch up due to its
dualported nature.  My general rule of thumb... if you have a 14" or 15"
monitor, stick with DRAM. If you have a 17" and are going to run at 
1024x768
16million colors at refresh rates like 75Hz, you'll probably want VRAM.  
If you
have a 21" you definately want VRAM (although in fact, newer EDO DRAM 
cards do
quite nicely at 1280x1024x64k colors).
<<<

Well, you are right somehow, but what about EDO-VRAM ? Those are faster 
than EDO-DRAM in the same way as VRAM is faster than (FPM-)DRAM.


Bernhard Bender
---
Group Manager Core Technology   ELSA Computer Graphics

ELSA GmbH             		Email: br@elsa.de
Sonnenweg 11                    Fax  : +49 (241) 9177 600
D-52 070 Aachen, Germany        WWW  : http://www.elsa.de

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