Dual GPU

[will]

I know you can use a GPU just to deal with the frame gen while the other one deals with the game itself. My question is about how good it would be using a quite old one to deal with the frame gen. My second GPU would be a GTX 1050 2 VRAM (it would be used to make frames), any guesses if that is even worth a try?

[EternalLoop]

Yes, I'm using the integrated graphics of my 12700k for that, your 1050 will do better lol, because the uhd770 can do 2x at max, idk how a 1050 will do

[HabibiFresh]

Depends on your res, if your on 4k certainly not, at 1080 I wouldn't think any issues, for 1440p im not sure

But rlly if u can get your self a rx 6600 or rtx 2060 that should cover all resolutions

[will]

Thanks for the advice, i was kind worried about getting a worst experience using my GTX 1050 2 VRAM to make frames than using only one GPU to make both jobs.

My goal is 1080 with something around 120-140 fps considering i've got 144hz, which i already can achieve with one GPU and lossles at 2x or 3x. Using the GTX 1050 would be more to see if there was any kind of increase of performance (not that i really need).

[ClockworkCrayons]

At 1440P, I have used an RX 550 4GB for FG which is less powerful in raster than the GTX 1050 2GB.
At 2X and 3X FG works well on the RX 550 but over 6X gets a bit laggy. I suspect the 1050 should work just fine based on my testing with the RX 550.

I have also tried on an Nvidia NVS 310 512MB (Quadro version of a GT 710) and while it worked at 2X @ 720p, anything higher than that was not doable at all.

Additionally the FG cards were being used through chipset lanes on a X670E with the main rastering GPU being an RX 6900 XT on the full 16X PCIE 5.0 slot (running in 4.0 mode).
Tested FG on Just Cause 2 and Nightingale (in addition to its built in FSR 3 FG).

[Kenan Citer]

Hey so i was thinking of buying rx 550 so i can do 1080p60 to 1080p120/165 and i was wondering on which chipset pcie lane was your second gpu running cause i have a gigabyte B550 AORUS ELITE V2 which only has pcie gen 3x2 so i was wondering how much performance i would lose on x2

[FFox]

Originally posted by Kenan Citer:

Hey so i was thinking of buying rx 550 so i can do 1080p60 to 1080p120/165 and i was wondering on which chipset pcie lane was your second gpu running cause i have a gigabyte B550 AORUS ELITE V2 which only has pcie gen 3x2 so i was wondering how much performance i would lose on x2

I did the test with a 2gb RX560 as a secondary GPU and results werent good. Likely because the motherboard assigned a PCI 2.0 version at x4 speed NO MATTER WHAT. Even messing around with the bios PCI-E configuration. Some games crashed the whole computer the moment I hit Scale in LS. Cyberpunk is the one which kinda ran ok. Hogwarts Legacy crashed the whole system.

Considering this, FSR3.1 mods with FrameGeneration mod (DLSS Enabler) just run better on a single GPU. Even the very same LSFG 3.0 did better on a single card, with the typical -10fps penalty before applying the FG. (mods also have this performance penalty)

The secondary card just thrown my system backwards but I can only speak about my experience. This could be the PCI-E lanes configuration themselves, or CPU which can't handle both. Different systems, different results.

[Kenan Citer]

yeah i tought so cause pcie 3 x2 is really slow thats why i will not be buying the second gpu but from what i have seen x4 is the bare mininum and also why it probably crashes. Thx for the help tho.

[Sergeant-Frost]

Originally posted by FFox:

Originally posted by Kenan Citer:

Hey so i was thinking of buying rx 550 so i can do 1080p60 to 1080p120/165 and i was wondering on which chipset pcie lane was your second gpu running cause i have a gigabyte B550 AORUS ELITE V2 which only has pcie gen 3x2 so i was wondering how much performance i would lose on x2

I did the test with a 2gb RX560 as a secondary GPU and results werent good. Likely because the motherboard assigned a PCI 2.0 version at x4 speed NO MATTER WHAT. Even messing around with the bios PCI-E configuration. Some games crashed the whole computer the moment I hit Scale in LS. Cyberpunk is the one which kinda ran ok. Hogwarts Legacy crashed the whole system.

Considering this, FSR3.1 mods with FrameGeneration mod (DLSS Enabler) just run better on a single GPU. Even the very same LSFG 3.0 did better on a single card, with the typical -10fps penalty before applying the FG. (mods also have this performance penalty)

The secondary card just thrown my system backwards but I can only speak about my experience. This could be the PCI-E lanes configuration themselves, or CPU which can't handle both. Different systems, different results.

hi, i tested a similar GPU, the RX 270 2GB.

I gave it a slight overclock and 120% power limit.

somehow gameplay is extreme choppy when i use the multiplier. This also happens when i use my main GPU for frame generation ( a GTX 970)

i dont know what im doing wrong..

but somehow using the adaptive mode works. My target is 60fps, because my native fps often drops into the low 40s.

it actually works with the rx 270, but its still laggy at some spots and doesnt gave me any latency reduction, compared to using the single GTX 970.

so i now keep on using the single GTX 970. My main card also started to be cooked.. i had to ramp up the fans to jet engine volume and the card was still running at over 75 degrees, because the rx 270 was starving it of air, so its not worth to use it for frame generation.

maybe its also, because the rx 270 has to run in a x4 pcie 3.0 slot? .. my main GPU runs in a full x16 slot.

i also tried the "trick", where u connect ur display to the 2nd GPU directly. But that didnt work at all, my game then simply uses the 2nd GPU as main GPU. And i somehow cant change my windows settings so it uses my 1st GPU for the game and 2nd GPU for frame generation.

i also tried to use a 2GB Quadro 4000, but LFS cant even recognize that card.


but i want soon upgrade to a RX 5700xt or maybe a RTX 2070 / 3060.

i will then retry the 2nd GPU frame generation with my good old GTX 970. Maybe that works better. :)

[Kenan Citer]

Thank you for your information and i think that old rx 2xx are not really ideally optimized for frame gen. But yeah you should connect your display to your second gpu cause if you dont then your gpu send the game info into second gpu which processes it into frame generation and then send it back into the main gpu for it to display it. This requires more power from main gpu and also needs more bandwith which is what we are limiting by using x4 slot. I dont know why windows doesnt use your main gpu for game but the choppy part is probably because of that.
But thanks for sharing your setup and info cause it helps everyone when try to do the dual gpu setup.

[Jae Li]

Ok, so if I want to run 165FPS on 1440p ultrawide do the primary or secondary GPU need to have 16GB or ram?

Which GPU should have more RAM the primary or secondary? Can I use a 3060 as a primary and an Rx 6500 as the secondary for upscaling?

[Kenan Citer]

rx 6500 should be enoung for 1440p 165. for 1440p you need atleast 2gb of vram but 4gb should be recommended. Or atleast that is what i read somewhere on the steam forums