Is a 9070 actually overkill for a secondary GPU and will it actually hold up for the new 4k 360hz monitors that are coming out?
On my previous post here I was told my configuration of a 7900xtx primary and a 9070 secondary frame gen GPU was completely overkill but even at 1440 280hz I'm getting surprisingly high usage on my 9070. I also use the 9070 to process the overhead for discord streaming which I am doing while I took these pictures which adds significant load to my 9070. I am using AFMF on high / quality / blended frames which is the most intensive configuration that also looks the best.
Usage hovers around 80-90% in Borderlands 4 on my secondary GPU with my framerate capped at 264 (to account for overshoot) with occasionally brief spike to 100% on the 9070. I have a 9850x3d CPU and an x870e apex motherboard capable of gen 5 x8 x8 on both GPUs (7900xtx is limited to gen 4 x8 but the 9070 is on full gen 5 x8). I also threw in a picture of my usage in marvel rivals as well which has pretty high usage on both GPUs even when capped at 276.
Both GPUs are running the highest power limit bioses possible (550 watt limit on the 7900 xtx aqua and also a 375 watt 9070 xt bios on the 9070) which I know will help absorb some of the overhead of switching to 4k 360 hz but I'm almost certain my 9070 will quickly become a bottleneck once I switch to targeting 4k 360hz. I can use FSR upscaling to achieve similar base fps from my 7900 xtx (switching to balanced instead of native which is what I use at 1440p) so the 9070 will get fed a lot of 4k upscaled frames and I'm almost certain it will become a bottleneck when I am streaming on discord.
Is the 9070 really enough for 4k 360hz because I don't think it's possible and also I'm not sure if these monitors will even function without uhbr20 support so this may not even work without replacing the 9070 but if that's the case I'll be going for 1440p 540hz which I think may still have the same issue of making my 9070 a bottleneck.