Is it worth getting an rx 7900 xtx if you can't enable SAM?

You can enable Resizable Bar, which is the same thing. I have the same setup. But you will need to verify your motherboard supports it and how to enable it.

I find that smart access memory as it stands, isn't that important. The only video card that really sees a big benefit is the Intel ARC cards.

Who’s Sam?

SAM or REBAR similar thing different name.. it's on all mobo (I think, maybe not some lower end?) Anyway, it's only a few %... only Intel Arc work a lot worse without rebar, like -30%

Can you check with GPU-Z in the advance tab > Rebar what it says that you need to enable?

From what I’ve seen it doesn’t make much of a difference and sometimes it performs worse

I doubt it improves the framerate by a lot tbh.

You can enable it it just not called sam

You can enable Resizable Bar aka SAM in your bios and it works well with 7900xtx.

Newer Intel CPUs also support resizable BAR, which is what SAM uses.

The only requirement is that you install windows in UEFI (secure boot) mode - but that is only a concern when upgrading an old windows. Should be enabled by default on newer(-ish) boards and BIOS versions since that is a win11 requirement.

why can't you enable SAM? It's just a fancy name for resizeable BAR that's also on Intel's motherboards

You'll be able to enable SAM. It's just called resizeable bar on Intel's platform. You'll be fine. The 7900 XTX is a damn good GPU and should roar with the 13700K. Good luck with whatever you end up doing.

Enable resize bar in the bios then you should be ok.

i will go for an RTX 4080 with your CPU, if you want the best performance with AMD GPUs, use AMD CPUs