Help me decide...

[danielc]

My primary card is an ATI 5870, but the card is defective, so I need to RMA it. In the meantime I need to buy a temporary card, and thinking of having a dedicated PhysX card, I'm debating which one of these options offers the best deal for price/performance(Prices are in Canadian currency):


EVGA 01G-P3-1246-LR GeForce GT 240 Video Card - 1024MB DDR5, PCI-Express 2.0, VGA, HDMI, DVI

List Price: $145.19
Instant Savings: - $30.22
Price: $114.97
Less Rebate: - $20.00
Final Price: $94.97

BFG BFGE981024GTGE GeForce 9800 GT Video Card - 1024MB GDDR3, PCI Express 2.0, (2) Dual Link DVI, HDTV, VGA Support

List Price: $184.79
Instant Savings: - $78.82
Price: $105.97
Less Rebate: - $10.00
Final Price: $95.97*

Asus ENGT240/DI/1GD3/A nVidia GeForce GT240 Chipset (550Mhz) 1GB (1580Mhz) GDDR3 Dual Dual-Link DVI/HDMI/D-Sub HDCP PCI-Express 2.0 Graphics Card

Everyday Low Price: $117.99
Promotional Cash Price: $114.99
Instant Savings: -$5.00
Mail-in-Rebate: -$20.00
Final Price $89.99

Asus EN9800GT/DI/512MD3 nVidia GeForce 9800GT Chipset (600Mhz) 512MB (900Mhz) DDR3 DVI/HDMI/VGA PCI-Express 2.0 Graphics Card

Everyday Low Price: $117.99
Promotional Cash Price: $114.99
Instant Savings: -$5.00
Mail-in-Rebate: -$20.00
Final Price $89.99

Which one should I buy? Does it make much of a difference, as far as PhysX performance is concerned, to have 1gig versus 512mg and/or DDR3 versus DDR5?

Thanks in advance!

[zalbard]

I think you only need 256MB of VRAM for PhysX.