View Single Post
Old 05-19-10, 05:11 PM   #15
snowmanwithahat
Snowy
 
snowmanwithahat's Avatar
 
Join Date: Jul 2004
Location: Michigan
Posts: 974
Default Re: a little warning about gtx 480 and dedicated physx cards

Quote:
Originally Posted by slaWter View Post
It shouldn't matter but apparently it does.

Yes I use PhysX and I like it. But there's no need for a dedicated card IMO.
It does matter. Window's needs to have DirectX rendering available on that card even though a monitor isn't hooked up. Consider my case where I have an external hooked to my 9800 GTX it has to render things with the card and use it for physx.

Consider playing Metro 2033 in windowed mode (if it has one)... what do you think would happen if I had a GTX 480 and dragged it from my monitor on the 480 to the 9800 GTX, while in DX11 mode.... no one knows, dividing by 0, can't happen. That's why it forces the lowest common DX mode available.

By using a card as a dedicated physx card that means you're dedicated all physx activity to that card.... not dedicated that card to physx. It still can, and will render video if you hooked up a monitor to it.
__________________
---Gaming Rig---
Q6600 3.4ghz (378x9) - 1.5v
Gigabyte EP45-UD3P
8gb (4x2gb) OCZ Gold DDR2-800 (5-4-4-12)
MSI+ASUS GTX 470 SLI
Dell u3011 IPS Display
HP 22" Auxiliary Monitor
256gb Western Digital Silicon Edge Blue SSD
5x2tb RAID-5 Array
750W PC P&C PSU
Windows 7 Pro 64-Bit & Ubuntu 10.04 64-bit

---Gaming Laptop---
ASUS G53JW
Core i7 740QM
16gb DDR3
Nvidia GTX 460m
1tb WD HDD
120gb Corsair SSD

Join the NvNews Folding @ Home Team
snowmanwithahat is offline   Reply With Quote