GPU Passthrough for Your CRT 

For anyone wondering, I think this is now a standard feature in Windows 11. I just upgraded from 10 and it's just there, and almost completely undocumented/unmentioned. One of the most underrated features imo

OMG, I FINALLY FOUND THE VIDEO ABOUT THIS TOPIC. I was trying to do my own tests between monitor plugged into gpu directly and monitor plugged into motherboard (so the picture was passing through my cpu graphics), but the camera wasn't fast enough to caprute the difference. Thank you very much for doing all the tests!

Such a good quality video. Liked and subbed. I really hope you do more CRT contents like this in the future with newer/older/classic games.

i love deep dives into esoteric graphics stuff like this. thanks my dude

Great informative video!!!! This is some of the exact stuff I have been looking for, specifically the VGA adapters for running on newer cards. I'm glad to see it's virtually lagless vs native analog signal generators onboard the rendering graphics card. Great to see!

This was really awesome, thanks for the insights. Hope to see more videos from you!

I've had this exact pass-through idea kicking around in my head for weeks and i FINALLY come across this video to prove to me that not only is it possible but it exists and works. I'm about to put a high end CRT into service as a secondary screen and my adapter is like 95% reliable for what i'm trying to do. This, on the other hand, is EXACTLY what I want to do. Gonna take some work but i think it'll be worth the effort. Thank you!

quality content as always!

those video are so great to fall asleep. subbed

You can't notice a 3ms delay by looks but you can feel 1/60 of a frame which is 0.26 ms since 60hz/60fps= 16.66666ms so 16.66666÷60= 0.26ms . I know this because I did a gpu pass through with duplicate screens. I recorded the results with a high speed camera because when I was playing I could feel some lag on the crt. What suprised me is that the lag was only 1/60 fps. The crt when pressing pause on screen was behind 1hz/frame vs my lcd monitor.

I also have a EVGA 980 ti bought second hand, stored in a box somewhere. For newer gpus, I just use a hdmi/vga converter and have zero issues with it.

This is outstanding, I can't believe I've finally found this video. This is SO in depth. You're now my favorite CRT channel. (Sorry LGR I still love you very much) Edit: Holy fffffffffffffffffffffffff that (low)latency is insane!

Hope your speakers are shielded! Great vid!

The GTX 980 Ti it's not that bad for simpler games, for new heavy games this is a nice option. No need to select every game to run on the modern GPU, hunt the ones the 980 Ti can't handle.

Thank you so much for making this video

Oh wow! This is some exciting stuff!

Interesting considerations, thanks for sharing.

My man, you are a fucking legendary wizard of CRTs!

Really cool and interesting video! Would be nice to see you do some videos about the OSSC (open source scan converter).

welcome back to youtube

great video ! thanks! First time seeing a video from you: NEW SUBSCRIBER HERE!

Thank You I actually Have this exact problem! I think I might upgrade my Ryzen 3700x to 5600g apu or 5700g apu when I can afford it. Your amazing! My mobo has a DVI output for an apu I'm going to wait for a non beta build of windows and more info on this feature working with AMD apu and Nvidia gpu but this is some amazing news for CRT Monitor lovers that want to play the latest games on their monitors.

Bought EVGA Hybrid 980Ti WC with 2017 Tax Money (800$). Year later, added BIOS voltage, & GPU/MEM OC & Liquid Metal mods. Furmark pulls 420w (in gpuz) with steady 70c, she ran 420w+ 3 days straight no issues (furmark for the weekend while I was gone). She kept ticking with games and video encoding until I sold it in 2023. 980Ti is a king in my books

Oh thank god this is a thing now. I can finally get a CRT and an old radeon card. 240p gaming here I come!

There are DP->VGA+HDMI combo adapters that can reach 600mhz, I don't have one though and they're bit pricey too

I was just thinking about this in the early hours of this morning. I was on ebay looking at a Titan X Maxell, and thinking about using it for pass through.

excellent

Cool video! Fyi the NVIDIA control panel let's you pick which GPU is doing the rendering and then you can set your second weaker GPU basically as an extra output passthrough.

I'm curious how much resolution your trinitron can actually resolve. I have a similar 21inch dell one that I found could only resolve 1280x1024 resolution without a fine grid pattern turning into a mixed up flat grey. I get supersampling is great but I was very happy knowing I had some more GPU juice left over from all the saved pixel rendering work.

I'm so glad i kept my 780

man, the trouble i had with my fw900 and my radeon r9 290 i was *THIS* close to shell out the obscene amount of money for an HD Fury if only this was available back then edit: this also kinda reminds me running an amd gpu with as nvidia one for physx when that was still a thing haha

If the PCI-E gets cut in half, wouldn't it be better to just use integrated graphics to display the signal through the VGA connector of the motherboard? and then use the full 16 lanes for the processing power of the dedicated gpu in Windows 11.

Imagine having trouble testing input lag in existing shooter games, so you went ahead and made your own. Absolute madlad!!! Also, since FSR has been seamlessly integrated into the sample game, could you do the same for the DLSS plugin?

This is awesome! Do linux mint next! 😂

Would it be possible to pass through the motherboard's integrated VGA output?

Hey, Awesome vid as always a5hun. Something that I was hoping you would do on here however when comparing analog solutions was to compare the latency of DP:VGA adaptors to that of VGA passthroughs from the motherboard, as finding DVI, VGA is still very commonly found today on gaming motherboards expecting an iGPU compatible CPU. Seeming as the display adaptor from iGPUs was created for the sole purpose of passing through an external video source from either an external GPU or CPU (such as the layout you commonly find on laptops today), it would make sense and would be a much cheaper option for those with PC motherboards that are still today rocking on-board VGA for this kind of passthrough to have less latency then either a passthrough GPU, or that from an adaptor like what you’ve tested on this video. I’d love to see a video on this option if the results are response-worthy.

While it's great to have more support and options, and have this awsome ability at the OS level, so it's for sure an upgrade, Nvidia has offered this capability for years through OPTIMUS, it allows you to do the same thing, output from one card and render from another, Nvidia Experience now has this capability built in, just select which GPU you want to use before booting the game, s small GPU icon in the taskbar will indicate which GPU is in use, AMD GPU's have switchable graphics", allowing you to select which GPU you want each application to use, great for either sparing your battery or main desktop GPU when so much power isn't needed, Nvidia has the added bonus of allowing you to use the second NV GPU as a PhysX accelerator, giving a good 15% FPS boost in some games, so there is more than one reason to have and extra VGA GPU in your gaming RIG.

You don't need the best DSUB card to do it. I have a 3070Ti with a HD5450 next to it, which is only 512MB. Still works great, GTAV about at max setting, 140FPS, despite working at PCI-E 1.1 X4 mode for some reason. The 3070Ti is running at PCI-E 4.0 X16. I want to change the 5450 for another card which also has S-Video Output to be also able to use it with CRT TV.

I have seen a forum talking about getting freesync working on some CRT’s over cru. It would be cool to see a video on this.

I use a 1060 gtx and a 960 gtx. As far as I am aware my 1060 is rendering all my games, even if I put the game on my CRT. But my CRT is connected to the 960. I've seen some people online say they weren't able to get this to work, and others have said they also do this with no problems. I feel their pain, I can't get interlaced working to save my life on my setup. And others said they can get it working with no issues.

I have a Sunix DPU 3000 adapter plugged directly to my Sony CPD-G520 monitors VGA input with a male-male VGA genderswapper, or whatever those are called. I tested this adapter to still display an image at around 540mHz pixel clock. Out of curiosity, how many usage hours your Dell CRT have? My G520 has 7080hrs and my IBM P275 has 7600. Both are still able to hit the 112 nits targeted on WinDAS white point procedure.

Can i used the integrated gpu of my cpu for passthrough? , most mid range motherboards have an analog out, if i could use the igpu from my processor, i wouldn't have to giveup any pci-e lanes to another gpu, this should reduce the performance loss massively.

RTX 2070 / GT 710 pairing. Last time I used a CRT it did very well, BUT Nvidia dropped 600 and 700 serie support, so my 710 went invisible to any software. I wonder if it'll still work...

Would this work with a 1660 and a geforce 210?

Here's an idea for next video: resolution scaling, gpu vs display latency.

Have you heard of InnoSilicon’s Fantasy One Type A GPU? It is a brand new card with a VGA output. I don’t know when it will be available or how good it is. But it should be something to pay attention to for us CRT users. Would you consider reviewing this?

Do you think you could make an updated version of this video, with a newer gaming test rig with either an RTX 4090 or a RX 7900 XT as the render GPU, and testing out older GPUs to decide which ones to recommend for the VGA/DVI-I output?

What about component/composite out??? to drive CRT TVs??? The last GPU to have 7 pin S-Video was the GTX 285, to my knowledge thats the fastest GPU with Composite/Component out via S-Video. Would this work with a GTX 285 + Modern AMD GPU? I dont think u can pair a OLD Nvidia GPU with a new one because of drivers problems, but u could try GTX 285 + More modern AMD card and see if that works...

I have an EVGA GeForce GTX 970 SC GAMING ACX 2.0 (what a mouthful) and an Sony E200 (1600x1200 @ 60Hz). I find when the GPU is under heavy load, there's noticeable interference and noise on in the image in the form of dark horizontal lines moving up and down the screen. The lines are especially noticeable on solid coloured backgrounds. It happens on VGA LCD monitors too, and it has happened in every house I've lived in (so it's not the house electricity wiring). Is this a problem you've experienced with your 980 Ti? I'm under the impression that my 970 just has very poor shielding on the analog section, and when high power is drawn into the video card, the interference occurs. The best solution I've found to this is to use a HDMI to VGA adapter, which is a real shame because it would be nice to use the VGA straight out of the video card. Are there any other solutions to this? (I don't want to do the GPU passthrough thing, if the 970 is at 50% load I'd be worried there'd still be noise.)

I am running the Mitsubishi Diamond Pro 930SB with an RTX 2080. I am using a delock displayport to VGA adaptor and I have no issues. I can hit 163hz at 800x600 and 74hz at 1920x1440 which is the monitors max hz for the resolutions.

brother, about adapters, can you test displayport to vga VS hdmi to vga input lag? ty so much!

how about a DP to vga adapter, perhaps something made by dell or hp, doesn't it use the GPU's build it DAC unlike the HDMI adapters?

amd and nvidia should have kept an analog vga option on their cards. it literally cost $0.10 to implement it, also their cards are big enough.

Will you please revisit this topic to see if the situation is improved now or not?

Wow awesome I'm already thinking of potential uses, like using a 1080ti with amd integer scaling or hdmi freesync.

Can this be done with the vga port on the motherboard for those cpus that have an onboard gpu? My i5-8400 has on board gpu. My asrock h310m-hdv motherboard has a vga port

Also where can we get the latest and GREATST beta version of your Frog Pursuit? :) Please!

3060 "inexpensive" ? What?

Would this work with motherboards equipped with VGA out ? (using an APU of course)

How does GPU passthrough latency compare to a conventional flat panel?

so adapters dont have lag?? thats weird because i do feel like there is some lag with my startech DP2VGAHD20 with displayport on crt at 160hz while playing osu

I am a year late but i have a stupid question nobody has asked here How did you manage to install drivers on both GPUs? apeartly, it only installs driver for one, and if you go on and try installing for the other one it will remove the previous drivers you had just installed Maybe it's becuase they are generations apart but I tried Pairing 3080 with 1060 but couldn't do it so i am stuck with my old R9 380 which ofcource has different drivers beacuse it's from a different vendor PLease answer if you can. How do i install drivers for both Nvidia Graphics Cards? Thank you

I got a question? Can I enable super res with this? I'm thinking of running my p1130 at 1024 768 150hz with a super resolution of 2048 1536 this way I can get some good aa with a high hz. Do you think this will work?

15:19 How can I optimize my Windows in order to achieve lower latencies?

I don't get it. Why do you consider tearing to be desirable on a CRT? Would you elaborate on that please?

Sorry for my possible ignorance, but I use a Display Port to DVI connector for one of my old LCD display, and it works just fine, why not just use that? Or maybe Display Port to VGA, or DP to DVI to VGA in a cursed chain of adaptors? :D

Hey, has someone a hint for me: I am running a 454 iiyama on my 960GTX, and the other card 4080 currently, should do the rendering. I have 2 other monitors connected to the 4080. i try running BG3, Cyberpunk, or RDR2, but it does not seam to work. I have to choose the graphics driver for each game in the graphics settings, but if I choose the 4080 I can’t choose the iiyama as the display :( Maybe someone has a tip, or a reference for me I can try out. Thanks in advance. (Tried to switch windows+shift+arrow key)

i use a displayport to vga for my dell p1130. i run it at 1024x768@155hz and 1440x1080@100hz

How to connect the PC to a PVM monitor using Component cables though?

I don't have an insider build, but it's been out for so long that I'm surprised it's not in the main build yet. Do I still need to do an insider build to get this feature, even a few years later?

I want to do this, but unfortunately I built an NR200 mitx for my last go around.

Can you tell me how to over clock lg24gm79g to 170hz please it's humble request

What about someone who has a 3080Ti wanting to do up to 1440x1080 at up to 85Hz? I'm not even getting a full GigaByte/sec per the calculation in the bandwidth chapter of the vid.

Doesn't the HDMI adapter adding zero lag make using these old cards moot?

Hey,does your fps game has async reprojection?

What dvi to vga adapter are you using here?

Can you still do interlaced when using the passthru?

im going to see if I can do this with a card that has s-video for a tv

Admittedly, I tried watching the video and I got lost due to all of the terminology I don't understand. Essentially, I'm trying to game on a CRT with a PC that has an RTX 3070. I would like to get one of those high end DACs to convert my Display Port to VGA, but they're impossible to find anywhere. So I was recommended this video to try the passport. Could someone just give me a summary of what I'd need to do to get this setup? There are a few MSI 980Tis near me that I could possibly buy if someone explains it well enough that I can understand.

It is possible to do this with a GTX 1660 + a GT 710 and windows 10???

Why do you say you're stuck with 2015 graphics performance forever? Could you not do this with a modern rtx 3070 and a 980 ti? I can't see why that would bottleneck you?

"Inexpensive cards" "RTX 3060" lol

This is a little confusing to me. I don't really understand why you say this is a new feature, or requires a very recent version of Windows. I think it's been pretty standard for Windows 10 for a long time. I've been doing this very same thing on Windows for years now. Very frequently, I play Zdoom or even UT 2004 on my Intel CPU's integrated graphics while waiting on other players in various MMORPGs. I've also been able to play games on a GeForce GPU outputting to a monitor connected to the Intel GPU.

Amazing content I enjoyed this video and topic a lot but a bit of constructive criticism and please don't take it the wrong way but you are talking way too fast and frantic you should slow down a little bit and draw out you're words. I don't mean too be so critical when you are so composed but the delivery was kind of keeping me from enjoying it I had too turn the speed too .75 too enjoy it

I play 1.6 cs competetive on a crt but i use display scaling bit blurry but its fine. When i put gpu scaling i have sick image but this gives me 1 ms latency which is bad in fps games can i tweak something around this?

Fuck me I thought you were gone. Btw viewsonic xg2431?

Can you use those intel gpus found in mobos for pass through? They usually have/had vga output

Let me know when you figure out a lagless solution. This is not a great option if it introduces that much lag.

I think I'll just stick with my hdmi to vga adaptor. Pretty sure I haven't ever its bottle neck yet. My crt has max vf of 85khz

It would be interesting to see how more pcie bandwidth would effect latency.

What about a GTX 970 ?

i didn't know dvi can output analog

Anybody knows if this is also working on windows 10?

open gl sli auto ?

Shame this isnt for 15khz output.

Pass through introduces input lag which defeats the purpose of playing on a crt monitor...

ddd

MISTAKEN! AMD is TRUE AUDIO NEXT on the box which means its real optics photo video whatever camera hooks up IS the quality of the digital in LIVE 3D software using HDMI. Im not sure of the correct vulkan API function but i've proof of concept you can use DJ audio terms to modify your AMD game graphics while PRORENDERING VULKAN multimedia AV1 HEVC AC3 AC9 AV9 WAVEOUT RENDERDIRECT TO DISPLAY. The AMD handles true radiation input for all light sound or actual radiation gamma sigma theta iota zeta any greek letter. It works like night amplification goggles computer does.. its a quantum infinity super computer faster than reality freely syncing with any light based hardware and modern RYZEN lets it EMULATE any physical computer in the universe at the same speed or better. My current 7800xt 16GB quotes 8k 165hz RNA DNA to the power of 3 per RDNA 3 core im assuming as that is the 'RDNA 3 radiance display engine' .. so my 60 core 7800xt.. im not sure.. my vulkan FPS when professionally rendering to near pixar/disney render quality in game.. it ENHANCES and improves ALL of RU-vid and NETFLIX in realtime reencoding and decoding with HARDWARE but only at a few thousand FPS till i crank the infinity resolution and infinity everything else and all 3dnow 9Dnow and cinema4D cinema9D i actually all of them even vulkan or D3D like 0D1D2D3D...9D... and use DJ audio compressonator knee attack time release makeuptime autogain scrobbler and other cool stuff like FREEVERB! of course you will want to use awesome words for analog and video and bitstreaming and passthrough S/PDIF H/W i use ZSR and ZTXATXEVILGODDESSRAYS (i dunno i type it in and it works unlike the original 60's truegodrays nvidia got the churchies to hate on AMD for being TRUE SPACE PROGRAM see all of the universe with radio telescopes and submarine sonar with any mic in your house.) Nowadays AMD game titles are really old ps3 titles that nvidia forgot to sabotage and molest.. only works on some dolbyvision AMD devices like samsung phones FROM SAMSUNG STORE or LG V60 from USA (lenovo) or uhh a REAL ALL AMD SYSTEM FROM THE AMD STORE and dolbyvision. You can see fake lighting fake RTX and fake reshades were invented because nvidia was faking directx9 compatability for things like APERTURE function which is what makes resident evil village and other sony titles look better textures and higher quality and run a million times better on AMD hardware freely having the textures be ANY aperture with the simple directx API function but nvidia cant because NOT TRUE OPTICS not true audio.. try my proof of concept config.ini files. www.mediafire.com/file/f0flt2rkvx2qq37/infinitybitdepthinfinitygraphicsinfinitypixelsinfinityresolution.7z/file works pretty great on my LG V60 in android too just copy to documents folder a dozen times maybe another dozen in video.. run all the reg files if on windows then each reboot run the session environment manager.. theres way more uhh windows latency and customizing tips you maybe also need to delete the fake nvidia fake fags HKLM/microsoft/directx folder to remove fake dxfeaturelevels cap if windows.. android/linux seems less issue.. i cant COMPILE or MOUNT or do stuff to FIX the OS which should fit on a live bootable CD EASILY but doesnt when some linux distros are a few floppys and i can custom compile those like a stage 3 tarball gentoo install to RAW partition table DD function emerged with my config file concatinated to the make conf and profile to transfer 3.4GB ISO to a 32GB USB stick rated at 130mb/sec in the front ports of my case USB 3.0 or 3.1 if im lucky at 3.6GB/second because windows and fake nvidia cant compile anything because ZERO HARDWARE FAKE FAKE FAKE. your latency issues you need to set no page file vsync off and use memory culling and VMA D3DMA and other things TBC_MALLOC_disabled etc.. particularly using reflex 'opticalmode' and antilag and SMART ACCESS MEMORY SIMD and functions like SIMULTANEOUSLY or ULTRAEXTREME .. particularly ULTRAEXTREME8XEQXQSUPERSAMPLING and ultraextremeMULTISAMPLING along with your ultraextreme filmic and dualinfinityapertures and POV and other stuff.. the fake viewport and fake nvidia not using OPENWORLD and OPENGPU and other things means.. your latency is going to suck you can literally latency -7 or.. -AA .. mmmm AA = 16 16. smartaccessvideo and memory and storage helps greatly with latency as does infinitycache infinityfabric and FMA3 and all the AMD maths optimization you NEED RADIO MATHEMATICS put that in, valency and other cool stuff.. throw it in.. rigid nbodies.. crosshatch physicallybasedrenderingrealityemulation .. MOTIONDRIFT! thats a cool one.. uhh ZOOM ZOOM ZOOM .. i dunno.. figure it out im just guessing. your nvidia audio sucks and is FAKE. AMD is TRUE AUDIO.. you dont get it.. DJ knobs working and all the knobs on the blackmagic design davinci resolve homepage doesnt begin to explain what retard losers nvidia owners are. pixeldrain.com/u/JFq1Ldir your digital is 1:1 and BETTER of ANALOG in REALTIME.. audiophile audio starts at being better than reality.. figure it out!

Will this work with crt emudriver?