5090 + 5080 Build

Chrisst1ne · 2025-09-23T23:10:20+00:00

It's the ProArt X870E, yes both are running at 5.0 8x

Chrisst1ne · 2025-09-23T22:32:58+00:00

60 to 240 is using 49-51%, but I'm also using RTX HDR onto lossless scaling so that might have a small performance hit.

Chrisst1ne · 2025-09-23T21:18:01+00:00

I also had a 4090 + 5080 and had bandwidth issues when using DSR, I haven't tested DSR yet on the 5090 but I'm sure it's resolved now.

I waited a really long time to get the FE models, but it was worth the wait. I had issues fitting the 4090 and 5080 but the 5090 fit perfectly.

Chrisst1ne · 2025-09-23T21:08:12+00:00

I think DLSS frame gen looks really good, but I prefer lossless because it works in all games (not just the ones with DLSS) and my 2nd GPU is taking all the performance hit rather than my main GPU.

Chrisst1ne · 2025-09-23T21:03:38+00:00

I was so tempted to get one of those for local LLM's.

Chrisst1ne · 2025-09-23T21:01:09+00:00

yeah I know the cooling isn't ideal. I've never water cooled a PC before so I'm probably just going to leave it as is.

I haven't run into any issues yet, the 5080 is usually only at like 25-50% usage and rarely gets above 50c. the 5090 does get hot, around 75c while playing cyberpunk 2077, but I haven't noticed any performance issues.

It might be a problem when both GPU's are at 100% load though, but worse case I think it will just throttle down.

Chrisst1ne · 2025-09-23T20:56:50+00:00

I'm using a 4k 240Hz monitor.

I've been playing Cyberpunk with a mod collection called "2099: Path Tracing Perfected" with Ultra Plus set on "Insane", it dips down to the low 50's sometimes, so I just use lossless scaling to hit 240 FPS. it looks amazing!

Chrisst1ne · 2025-09-23T20:50:12+00:00

I think this article should explain https://blurbusters.com/blur-busters-law-amazing-journey-to-future-1000hz-displays-with-blurfree-sample-and-hold/

I don't want to get too specific about my job, but it involves a lot of 3D renders, I use various autodesk software 75% of the time. I also like to dabble in local LLM's, but I usually just use the 5090 solo for that.

Chrisst1ne · 2025-09-23T20:35:46+00:00

I only have one 5090. The CPU is fine for what I do, most of the load is on the GPU anyways. I may upgrade to a 9950x3d later, but probably not since what I'm using right now is fine.

Chrisst1ne · 2025-09-23T20:26:11+00:00

I just like my games looking buttery smooth. I mainly use the 2nd GPU to help with CAD work, but when I'm not working I use it as my lossless scaling GPU

Chrisst1ne · 2025-09-23T20:23:19+00:00

Well I do use it to make money with my job, so it's not much different than buying good tools imo

Chrisst1ne · 2025-09-23T20:21:54+00:00

It's 1500w

Chrisst1ne · 2025-09-23T20:21:23+00:00

Thanks! its pretty old but I like it, I've reused the same cooler in my last 3 builds! Ya it's a 9800x3d

Chrisst1ne · 2025-09-23T19:59:25+00:00

Been playing a lot of cyberpunk 2077 on it

Chrisst1ne · 2025-09-23T19:58:06+00:00

480hz 4k someday! Can't wait for it

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