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if RX580 crossfire,will i get 16GB Vram?

syzhk3
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if i get a RX580 crossfire, will i get a workable 16gb vram,or the vram is still 8g? that's the question im not sure about.

the full story is that one of my friends want to build a PC that can handle 15ish multi-gameclient open in sevral mobile simulators.

the thing i found so far is for his current setup which is a core i5 6400 and 8G ram,he can open 4 gameclients in the simulator, then the cpu ram usage is all 100% and each of this gameclient use about 40-70 MB of ram.

so i figured one of the gameclient probably needs one tread and 70MB ram, a ryzen 2700X cpu should be enough. i think a ryzen 3700X would be great for his need.

then now we're getting into the GPU usage . im not sure how much vram we need in this case, so i would like to know if i get a RX580 crossfire would i get 16GB vram?

or is there a better solution for this? thanks for your reply.

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running them in crossfire?

no

running them as seperate cards

yes

 

you should be able to run them as seperate cards

 

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5 minutes ago, syzhk3 said:

if i get a RX580 crossfire, will i get a workable 16gb vram,or the vram is still 8g? that's the question im not sure about.

the full story is that one of my friends want to build a PC that can handle 15ish multi-gameclient open in sevral mobile simulators.

the thing i found so far is for his current setup which is a core i5 6400 and 8G ram,he can open 4 gameclients in the simulator, then the cpu ram usage is all 100% and each of this gameclient use about 40-70 MB of ram.

so i figured one of the gameclient probably needs one tread and 70MB ram, a ryzen 2700X cpu should be enough. i think a ryzen 3700X would be great for his need.

then now we're getting into the GPU usage . im not sure how much vram we need in this case, so i would like to know if i get a RX580 crossfire would i get 16GB vram?

or is there a better solution for this? thanks for your reply.

You wouldn't run in crossfire for that use case I don't think. Crossfire is using two cards to render one instance of a game. It mirrors VRAM so the amount remains the same. 

For that kind of almost virtualization workload, the cards should remain separate and split accordingly.

Yours faithfully

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No, you will only get 8 GB for all current titles but it could be that in the future games will come out that can use 16 GB (i'm not saying they will, i'm saying that it is technically possible)

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IF the game utilizes crossfire decently you will load the Master GPU VRAM with more info than the Slave GPU VRAM and its core clock as well.  IF the game doesn't crossfire, you second GPU sits idle AF.  IF the game utilizes crossfire well (Overwatch for example) I see identical GPU and VRAM usage (basically) - it just spreads the workload, not doubles the power of the GPU output/pools the resources together as one.

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