RTX 5080 and CPU Bottlenecking
Posted by IWillAssFuckYou@reddit | buildapc | View on Reddit | 14 comments
Perhaps a dumb question, but currently I'm on an i9-12900k and 3070 Ti. I want a 5080 just for the extra VRAM (kinda tempted for the 5080 Super with rumored 24 GB as I did not foresee 8GB not being enough, but yeah call me crazy).
My concern is given how CPUs have changed over just 3 years (with Ryzen CPUs having X3D models especially targeted at big improvements in CPU loads for games), is my CPU now old enough that I have to worry about my 12900k starting to bottleneck it? I only plan on gaming at 1440p.
secretagentstv@reddit
The 5080 is $1,400. You could buy a $750 for $800 5070 TI for just 15% less performance and with the money you save you could buy one of those fancy x3d CPUs.
IWillAssFuckYou@reddit (OP)
True, I don't plan on buying now. I plan on waiting until prices drop, which may be awhile. I just wanna prepare my wallet.
secretagentstv@reddit
Lol. You can buy a 5070 TI for MSRP right now. I picked myself up a 9070 XT for 700 bucks. Stock on gpus has been steadily improving. You're definitely going to have to look for good pricing, You can use a stock tracking app like trackalacker to get email notifications and purchase a GPU At a reasonable price.
Your CPU will definitely bottleneck a modern high-end 1440p GPU. I can't say with any certainty how much it will though. You could try checking benchmarks.
IWillAssFuckYou@reddit (OP)
Oh, that's pretty good in regards to the pricing. Also, thanks for the info on the 5070 Ti, I'm glad it also has 16 GB of VRAM because really, it's just the VRAM for me that's a problem. I didn't do enough research back then as I didn't foresee 8 GB not being enough.
Yeah may make the move sooner then to a Ryzen X3D CPU. I mentioned to someone else, but I forgot to mention on the post that I'm literally on 3200 MHz DDR4 which is... not ideal to say the least.
sopcannon@reddit
I'm using 32gb @ 3600mhz with a ryzen 7 5800x3d and a 5080 and i will probably wait for am6.
IWillAssFuckYou@reddit (OP)
I think you meant Zen 6 as AM6 would be the next socket. Do you think there is going to be something big about Zen 6, or is it that it happens to be the best generation for you to upgrade to?
secretagentstv@reddit
The rumor mill is suggesting that the next x3D flagship CPU will be 12 core and using one large cache under the CPU cores. We know 8 x3D cores perform better than 6. So maybe going up to 12 cores will provide better performance just because the larger amount of vcash. So, the last x3d CPU for the am5 platform might be a real banger.
IWillAssFuckYou@reddit (OP)
I see. That sounds like a pretty big deal. Well dang though that's crazy how bad 2025 of a year is to upgrade anything haha. There's just so much promising big stuff coming out 1-2 years ahead.
secretagentstv@reddit
Yeah that's how it works. That's why it's best to buy what's good now and not worry about what's going to be good later. That's how you get sucked up in the fomo.
sopcannon@reddit
No but yes i would get a performance boost from an am5 upgrade but the prices for me at the moment are a bit high.
Quito98@reddit
If u have DDR5 you should be fine.
IWillAssFuckYou@reddit (OP)
I'm on 3200 MHz DDR4
Quito98@reddit
Yeah there will be bottleneck then.
IWillAssFuckYou@reddit (OP)
Ouch, haha. Yeah kinda figure that would've been a problem, but forgot to mention it. I wanted to be cautious back in 2022 when I built it because I was hearing some reports of issues back then and wanted to play it safe with a proven technology.
So idk, how much of a bottleneck could we be speaking of? Like a 1% difference or a 15% potential difference? It's mostly just the low GPU memory that's the problem that makes me want to upgrade.