Sims 3 Graphics Card Help

Open graphicscards.sgr (Notepad works fine), and crtl-F to search for 10de.  That will take you to these lines:

vendor "NVIDIA" 0x10b4 0x12d2 0x10de
card 0x0fd1 "GeForce GT 650M"
card 0x0fd2 "GeForce GT 640M"

Create a new line under the "Nvidia" line, copy this text, and paste it in the new line:

    card 0x1f15 "GeForce RTX 2060"

So you should now see this:

vendor "NVIDIA" 0x10b4 0x12d2 0x10de

card 0x1f15 "GeForce RTX 2060"
card 0x0fd1 "GeForce GT 650M"
card 0x0fd2 "GeForce GT 640M"

(with indents from spaces that this site isn't displaying properly).  Save, quit, and open graphicsrules.sgr.  Crtl-F and search for 8800, which will take you here:

 elseif (match("${cardName}", "*8800*") or match("${cardName}", "*9500*") or match("${cardName}", "*9600 GSO*") or match("${cardName}", [etc.]

Change the bolded 8800 to RTX 2060.  Don't change anything else, not even the asterisks.  This will classify your card as uber.

Finally, scroll back to the top of graphicsrules, and look for this, 8-10 lines down:

if ($textureMemory == 0)
seti textureMemory 32
setb textureMemorySizeOK false

change the 32 to 1024, and add a # and a space in front of setb.  Your card has more VRAM than that, but TS3 can only use 800 MB anyway.  The lines should look like this:

if ($textureMemory == 0)
seti textureMemory 1024
# setb textureMemorySizeOK false

Launch the game at least once to refresh the deviceconfig.log.  You'll know it worked if you see a [Found: 1, Matched: 1] next to the card name in deviceconfig, and texture memory listed as 1024 instead of the current 32 MB override.  If either tweak doesn't work, please paste that same section of deviceconfig here, and we can tweak the edits.