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Question 1 SSD over CPU vs 1 over CPU + 1 Over Chipset vs 2 SSD's over CPU

alex.loeflath

Honorable
Nov 18, 2018
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Hi all,

has anyone tested whether its an performance loss to have a game and windows on the same SSD vs on 2 SSD's bound directly to the CPU? The new AMD Chipsets only support 1 PCIe 5.0 SSD over CPU since the USB 4.0 Controller takes away 4 lanes, i wonder whether its better to use 1 SSD for everything, or even buy an older X670E Mainboard which still supports 2 SSD's over CPU. The Games I'm talking about are high fps, heavily SSD/Loading dependent games (MMO with a lot of movement, loading structures and players, a lot of 'pop-in's' in general. This isnt internet latency based). I do understand that the difference should be insanely small, but what would be the best choice regarding performance there?
 
You won't be able to tell the difference with PCIe5.0 SSD's if you have the OS on it, nor for your day to day tasks. If anything, have your PCIe5.0 drive as your standalone game drive, sans any partitions, while another SSD of smaller capacity is standalone for your OS, app's and launchers. This will net you the best out of your drives and your platform.
 
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You won't be able to tell the difference with PCIe5.0 SSD's if you have the OS on it, nor for your day to day tasks. If anything, have your PCIe5.0 drive as your standalone game drive, sans any partitions, while another SSD of smaller capacity is standalone for your OS, app's and launchers. This will net you the best out of your drives and your platform.
Then your recommendation would be getting one of the newer mainboards, putting the gaming ssd into the cpu lane slot and another ssd for OS connected via chipset?
i just checked hwinfo and am astonished about how many writes the OS SSD has, over the time of 2 years 14 TB there vs 2 TB on the gaming ssd, the computer is only on when one of the games on the gaming ssd is played.
In theory the OS SSD has no real impact on a games performance, no connection to where the hardwares drivers are installed, eg?
 
i just checked hwinfo and am astonished about how many writes the OS SSD has, over the time of 2 years 14 TB there vs 2 TB on the gaming ssd, the computer is only on when one of the games on the gaming ssd is played.
14TB in 2 years is trivial. Given an SSD with a very low 300TBW...7TB/year equates to running past that in 2067. Adjust for whatever your SSD is.

2TB for the game drive is also nothing abnormal. The vast majority of its action is Read, not Write.
 
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What do you have now?

Full parts list, please...make/model of everything.
Right now i have a 7800x3d, msi 4070 ti, 2x16 6000 CL30 gskill, msi carbon 670E, 2 samsung 990 pro 1 TB (both over cpu connected, 1 with the 2 games i play, 1 only for OS), win 11 23H2.
This computer going to be the new living room computer (the one there from 2018 is getting old) thus I'm getting a new one for myself. Rotating them makes more sense than buying a new mid price one for the family, and deep down i like having shiny new stuff, cant deny that.
 
Right now i have a 7800x3d, msi 4070 ti, 2x16 6000 CL30 gskill, msi carbon 670E, 2 samsung 990 pro 1 TB (both over cpu connected, 1 with the 2 games i play, 1 only for OS), win 11 23H2.
This computer going to be the new living room computer (the one there from 2018 is getting old) thus I'm getting a new one for myself. Rotating them makes more sense than buying a new mid price one for the family, and deep down i like having shiny new stuff, cant deny that.
Thats mostly what I'm doing.
My current system goes to the spouse, and building a new one for me.

But I think you're overthinking the SSD and CPU vs chipset ports.
Design and build the best system within your budget, and let the SSDs fall where they may. Unlikely you'll see any difference in a gaming system.
 
Thats mostly what I'm doing.
My current system goes to the spouse, and building a new one for me.

But I think you're overthinking the SSD and CPU vs chipset ports.
Design and build the best system within your budget, and let the SSDs fall where they may. Unlikely you'll see any difference in a gaming system.
true, i already thought about me overthinking (pun intended). It's just a bit frustrating, that all MB of that gen focus on USB 4 which i will never need, while AMD decided to not increase the amount of lanes to the CPU. iI guess ill go for the gaming SSD on CPU lanes and OS SSD over chipset. Id legit buy one of these overpriced msi godlike MB if it would have 8 m2 lanes.