Graphics Cards

[mbhorselover]

I have a simple question. 

Could someone tell me if a AMD Radeon RX 7900 XT would be compatible with my current system? 

[hardreset]

I do not see any contraindication to using this card.

[FunkZ]

The 7900XT is a 300W+ graphics card, what power supply do you have?

Your 5700G processor is limited to PCIe 3.0 which will restrict bandwidth of the graphics card. Depending on game and graphics settings this can impact performance.

[mbhorselover]

I have a 750w power supply currently

Should I upgrade the processor as well?

[JohWill]

You will bottleneck at your cpu if your playing 1080p Super high, and some 1440p super high settings.  Only 4k and 1440p with that 5700G.  You will still have the Graphics onboard the cpu if you needed.  Other then that, looks good.  PSU isnt a matter unless your going to upgrade to a larger cpu which will double or triple cpu wattage.  That cpu is 65watts.

pcie 3 to 4 isnt an issue since all the data is on the gpu vram.  only instructions get sent to and from cpu.  The card would never fill a 3.0 at x16 so no issues there either.

When i SAY cpu bottleneck I mean there will be to many Frames per second for the CPU to handle.  Raising your Rez to 4k slows the rates etc.  You can also limit frames too but if your playing high reaction time games "CS2" that limit slows your Frame Gen time down pretty bad.  its best to just go higher in Q to 2k to 4k.

I have a dozen cards and cpus and can duplicate this easily with a 5600x and a 7900xt  Once CS2 gets more then 8 players you really start noticing it.

[FunkZ · Accepted solution]

A 750W power supply should be fine.

What resolution do you game at? Higher resolutions and quality settings require higher PCIe bandwidth. Try it and see, if you notice degraded performance you can always swap it later.