AMD APU Hybrid CF - Need information

[Rza79]

I'm wondering with what GPU I can CF a modern APU.
I'm having a very unique build here where I can install a dGPU but there's no access to its ports. That's why I'm thinking about a Hybrid CF build where I can hook up the monitor to the motherboard HDMI port.
I know a R7 250 can be used but what about a R7 360 or 370? I don't care about scaling above the dGPU's performance. All I care about is the pass-through.
A CF with a R7 250 would be a tad too slow.

In the past there was Lucid Virtu but that doesn't exist anymore nor can you enable Optimus on the desktop. So as far as I know Hybrid CF is the only way to get a pass-through these days.

 

[AtenRa]

You cannot Hybrid CF 360 and higher, up to 250 with current APUs.

 

[TheELF]

Even with Lucid Virtu if you only had the igpu connected you would only get the igpu speed.

 

[thesmokingman]

I'd say after trying hybrid cf out myself, it's like imo 99% not worth it.

 

[Rza79]

I remember seeing some threads were they mention Hybrid CF with a HD 7750 & 7770 (it wasn't with a Kaveri APU though). But now that I think about it, the R7 250X is the same Cape Verde silicon as the HD 7770. So did anyone try to CF with a 250X?
I'm wondering if somebody even tried to CF with a R7 360 or higher. Or does everyone just assume it doesn't work.

 

[Mahigan]

You need SFR (Split Frame Rendering) and not AFR (Alternate Frame Rendering) in order to make Hybrid CrossfireX a viable solution. DX12 makes this possible but no DX12 games (alpha/beta or otherwise) have implemented it yet except for a UE4 engine demo.

 

[tweakboy]

God you got it down.