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Using GPU 1 for Youtube while playing games on GPU 0

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Posted · Original PosterOP

Hi Guys


My full PC specs are in my sig, but I have a R9 390 and a GTX 950 (which I bought for encoding HEVC).


Ofc I have the my gaming monitor (the Samsung) connected to the 390, and my other two monitors connected to the 950.

Is it possible to offload browser video playback to the 950 while I play games on the R9 390? As of now, when I play a video in my browser, it's the 390 that does the decodes even though the video is playing on a monitor connected to the 950. My browser is the latest version of Firefox.


This is only an issue with Youtube/Firefox, as running something like media player classic on the secondary screens will use the 950 as it should.



REMILIA Mk.IIIB: CPU: Ryzen 5 3600X, Cooler: Arctic Freezer II 240, RAM: 4 8Gb sticks of Patriot Viper Steel Series 3600 CL17, Mobo: AsRock X570 Taichi, GPU: PowerColor RX5700 Dual 8G & Gigabyte GTX 950 2GB G1 Gaming, Storage: 512gb Silicon Power A80 NVME SSD, 512gb Kingspec "Halloween 2019 Special Edition" meme SSD, 512gb Hectron SSD, 6 hard drives of varying brand and age, PSU: Aerocool Project 7 P750, Case: Cooler Master Mastercase 5 MC500 (with add-ons), Monitors: Samsung C27FG70 (144hz Quantum dot, Freesync, pneumatic stand), iiyama G2530HSU-B (75Hz, Freesync, one in landscape, one in Portrait, all on pneumatic monitor stands), Audio: Sabaj A3 160W DAC/AMP + Wharfdale Diamond 220, Sabaj D3 DAC/AMP, Littledot Mk.II (w/ Soviet Power tubes and British Mulard M8100s/Soviet Voshkod 6JP-EV/ American General Electric JAN 5654W dependent on mood), Creative Sound Blaster X G1, Beyer Dynamic DT990 250ohm Black Special Edition, Sennheiser HD598SE (modified to be a headset), Takstar Pro82, a literal pile of chi-fi IEMs, Anker Soundcore Pro+, Mouse: Razer Basilisk, Keyboard: Ajazz AK60



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I believe the video decode is a separate block from other parts of the GPU so it doesn't really impact performance.


The other solution to force this is the route I went. GPU2 is in a separate physical system to GPU1. I can still control both systems with on keyboard/mouse using Mouse Without Borders. Of course, this has different benefits and other usability tradeoffs e.g. can't move stuff to 2nd monitor.

Main rig: Asus Maximus VIII Hero, i7-6700k stock, Noctua D14, G.Skill Ripjaws V 3200 2x8GB, Gigabyte GTX 1650, Corsair HX750i, In Win 303 NVIDIA, Samsung SM951 512GB, WD Blue 1TB, HP LP2475W 1200p wide gamut

Gaming system: Asrock Z370 Pro4, i7-8086k stock, Noctua D15, Corsair Vengeance LPX RGB 3000 2x8GB, Gigabyte RTX 2070, Fractal Edison 550W PSU, Corsair 600C, Optane 900p 280GB, Crucial MX200 1TB, Sandisk 960GB, Acer Predator XB241YU 1440p 144Hz G-sync

Ryzen rig: Asrock B450 ITX, R5 3600, Noctua D9L, G.SKill TridentZ 3000C14 2x8GB, Gigabyte RTX 2070, Corsair CX450M, NZXT Manta, WD Green 240GB SSD, LG OLED55B9PLA

VR rig: Asus Z170I Pro Gaming, i7-6700T stock, Scythe Kozuti, Kingston Hyper-X 2666 2x8GB, Zotac 1070 FE, Corsair CX450M, Silverstone SG13, Samsung PM951 256GB, Crucial BX500 1TB, HTC Vive

Gaming laptop: Asus FX503VD, i5-7300HQ, 2x8GB DDR4, GTX 1050, Sandisk 256GB + 480GB SSD

Total CPU heating: i7-8086k, i3-8350k, i7-7920X, 2x i7-6700k, i7-6700T, i5-6600k, i3-6100, i7-5930k, i7-5820k, i7-5775C, i5-5675C, 2x i7-4590, i5-4570S, 2x i3-4150T, E5-2683v3, 2x E5-2650, E5-2667, R7 3700X, R5 3600, R5 2600, R7 1700

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