[kwlug-disc] New Linux PC Build Advice

[CrankyOldBugger]

I was just going to say to head to camelcamelcamel.ca, but I noticed you
had that link.  But keep in mind that there's a Canadian version (.ca), so
you don't have to contend with gringo prices.


On Thu, 26 Oct 2023 at 09:41, Jason <jasonpa at gmail.com> wrote:

> FYI - The Ryzen 7 7800X3D is better at gaming than the Ryzen 9
> 7900X3D, despite the latter having more overall cores.  Here's why:
>
> The 7900X3D uses a two chiplet (CCD) layout, where the 3D V-Cache is
> stacked on top of only one of the chips.  This means only 6 of the
> cores have access to the 3D V-Cache.
> If you're playing a game that uses cores on both chips, the shared
> data needs to get pulled over the infinity fabric, and this causes
> performance issues.
> Also the AMD core parking/scheduler is apparently not very good.
>
> This video explains it in detail:
> https://www.youtube.com/watch?v=B31PwSpClk8
>
> I'm going to return the 7900X3D chip (unopened), and wait for Black
> Friday and try to get a 7800X3D for a lot cheaper.
> I paid $629 for the 7900X3D during the last sale.  Right now it's "on
> sale" for over $700.
> The most recent price drop for the 7800X3D was $499 on Newegg, which
> was an all time low.  You can track pricing here:
>
> https://camelcamelcamel.com/product/B0BTZB7F88
>
> I'll wait until Black Friday and see if it drops even lower, or pick
> it up at that price again.
> Either way, I'll save more than $100, and get better gaming
> performance at the same time.
>
> Just a PSA, as I didn't do enough research and just found out why the
> 7800X3D was so much more popular.
>
> Cheers,
> Jason
>
> On Wed, Oct 25, 2023 at 9:02 PM Chris Frey <cdfrey at foursquare.net> wrote:
> >
> > On Wed, Oct 25, 2023 at 02:15:33PM -0400, Cedric Puddy wrote:
> > > Thanks for the trip down memory lane!  Hope it was interesting,
> >
> > It was!  Thank you!
> >
> > - Chris
> >
> >
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