Dedicated physX cards

[tr0ubled]

I am upgrading the nvidia 640 card in my PC the an nvidia 780 6gb.

Is it worth keeping the 640 for a dedicated physX card, or should i just sell it? will there be any performance increase

 

[swifty_morgan]

sell it. 780 doesn't need it.

 

[M0j0jojo]

Sell it not worth it for physx, or just keep it and use it as a replacement card in case the GTX 780 stops working and u have to RMA it.

 

[zink1701]

Agreed, the 780 is a beast of a card and will run physX games without any issue or performance hit

 

[tr0ubled]

sell it. 780 doesn't need it.

I realize this, but will it increase performance at the slightest?

 

[4745454b]

Do you even play any GPU accelerated games?

the 780 is fast enough to handle PhysX itself. the GT640 might just slow it down.

 

[swifty_morgan]

sell it. 780 doesn't need it.

I realize this, but will it increase performance at the slightest?

what that toilet guy said.................

 

[4745454b]

Hey! That's my office.

 

[swifty_morgan]

and a nice one it is.........LOL

 

[Rationale]

I'd sell it. Between how motherboards handle additional PCI-E slots, and the vast difference from the 780 to the 640, there's a higher chance the 640 would actually slow it down as a PhysX card.

I typically wouldn't recommend anything weaker than a GTX 650 TI as a PhysX card, and even then, not with a 770, 680, or 780. Those cards are strong enough that reducing the PCI-E slot to 8X from SLI is likely to offset any performance gain.

 

[17seconds]

With a GTX 780, a GT 640 will improve your framerates somewhat in GPU accelerated PhysX games. You would need to decide if the additional heat and noise is worth it. The GTX 690 in the chart below and the linked review is even more powerful than a GTX 780, so the 640 will be an even better match for the 780. Check out the difference between "No PPU" and "GT 640".

Using Maxwell’s GTX 750 Ti as a dedicated PhysX card
http://alienbabeltech.com/main/using-maxwells-gtx-750-ti-dedicated-physx-card/

Dedicated PhyX PPU / GPU Shoot Out: GT 640, GTX 650, GTX 650 Ti, and GTX 680 – paired with a GTX 690
http://1pcent.com/?p=169