AMD dual Graphics

[Mohammed_83]

I have:

Dell Vostro 3905 with AMD A10-7800 installed
2x4gb Kingston hyperX 1866mhz memory installed
Radeon R7 250 GDDR5 1GB graphics card

My question is can i use dual graphics on these specifications?
I am doubtful that my mobo does not support dual graphics

Please help!

 

[hellraiser06]

If this is your Desktop:
http://www.dell.com/in/business/p/vostro-3905-mini-tower/pd

Then, no, it doesn't support dual graphics. It has only one PCI-e slot for graphics card.

Slots
PCIe x1: 3 Slots
PCIe x16 (Graphics): 1 Slot

Also, even if it did have an extra slot, it would be absolutely useless for such a low end graphics card, especially in 2018. You can, however, buy a single GPU such as an RX 460 or GT 1030 but even they may get bottlenecked by that CPU. What do you intend to use this desktop for if you could upgrade to a newer graphics card?

 

[Mohammed_83]

If this is your Desktop:
http://www.dell.com/in/business/p/vostro-3905-mini-tower/pd

Then, no, it doesn't support dual graphics. It has only one PCI-e slot for graphics card.

Slots
PCIe x1: 3 Slots
PCIe x16 (Graphics): 1 Slot

Also, even if it did have an extra slot, it would be absolutely useless for such a low end graphics card, especially in 2018. You can, however, buy a single GPU such as an RX 460 or GT 1030 but even they may get bottlenecked by that CPU. What do you intend to use this desktop for if you could upgrade to a newer graphics card?

I intend to play games, mostly Dota2
Also what i am talking about is using r7 250 with A-7800 APU for dual graphics, not two separate graphic cards

 

[hellraiser06]

DOTA 2 is generally easy on resources. You may get away by replacing your current graphics card with a current gen low end card like an RX 460 or GT 1030. But, please read the reviews first before making a purchase.

 

[jaslion]

If this is your Desktop:
http://www.dell.com/in/business/p/vostro-3905-mini-tower/pd

Then, no, it doesn't support dual graphics. It has only one PCI-e slot for graphics card.

Slots
PCIe x1: 3 Slots
PCIe x16 (Graphics): 1 Slot

Also, even if it did have an extra slot, it would be absolutely useless for such a low end graphics card, especially in 2018. You can, however, buy a single GPU such as an RX 460 or GT 1030 but even they may get bottlenecked by that CPU. What do you intend to use this desktop for if you could upgrade to a newer graphics card?

I intend to play games, mostly Dota2
Also what i am talking about is using r7 250 with A-7800 APU for dual graphics, not two separate graphic cards

Dual graphics will give you maybe a couple of fps more if you can get it to work but this will come with a bunch of problems related to doing crossfire (dual graphics is just another name for crossfire since you are basically putting 2 gpu's in crossfire).

You dell can't do it anyways and even if it could I would highly advice against it.

 

[Eximo]

Dual graphics isn't having two GPUs, it is mixing a discrete GPU with an APU.

I think AMD has replaced their chart with ones that honestly don't make much sense, I guess mobile platforms only.

Here are some people that have tried it: https://community.amd.com/thread/205179

A quick read through says you must have dual channel memory and it has to be at least 1866 before it will allow you to even attempt to enable it.

Dual Graphics is not great, the APU uses system memory, the GPU has GDDR5 and is much faster. Usually results in higher effective frame rates, but much more stuttering and tearing in practice.