DIRECT X 10 AND PCI EXPRESS OVER AGP SLOT

prozac26

Distinguished
May 9, 2005
2,808
0
20,780
DX10 is coming out when Windows Vista comes out.

PCI Express is capable of double the bandwidth of an AGP sot, but current cards cannot take advantage of the extra available bandwidth.
 

melarcky

Distinguished
Mar 23, 2006
766
0
18,980
DX10 is coming out when Windows Vista comes out.

PCI Express is capable of double the bandwidth of an AGP sot, but current cards cannot take advantage of the extra available bandwidth.
yes exactly but one problem, i highly doubt they will make an AGP Dx10 card
 

konfuzd

Distinguished
May 18, 2006
42
0
18,530
They did make AGP versions of current cards. AFAIK there's an AGP X1950 pro and a 7800 something. But these will be the last of the AGP cards because dx10 cards are designed to do more general purpose computing. This requires lots of bidirectional bandwidth, something the 1.0 spec of PCIe mearly adequate for. Since a 16x PCIe slot offers 8GB/s total bandwidth (4GB/s up/down), 8x AGP's 2.1GB/s simply won't cut it.
 

mesarectifier

Distinguished
Mar 26, 2006
2,257
0
19,780
I know, but there are no AGP versions of say, 1900XT(X) or 7900GT(X).

I'm only using common sense/logic here, no real bi-directional this that and the other to back it up.
 
Let's say that while it's not impossible (Nvidia's translator chip is generic enough to work with newer chips) it is highly improbable that we'll see DX10 cards on AGP slots.

About bidirectional throughput, for gaming cards it is not really that relevant - as games don't need that much GPU-to-RAM bandwidth. Other uses are still marginal enough to make it a non-issue.
 

The_Abyss

Distinguished
Mar 24, 2006
1,333
0
19,310
capslock.jpg