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most of you will know that you can build your own PC but have you ever thought

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about building your own graphics card at home sounds absolutely crazy but one guy

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actually did this recently software engineer Dylan Barry has put together a

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fully assembled prototype he calls Fury GPU and we sat down with him to find out

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exactly how he pulled this off the heart of the fury GPU design is a custom zinc

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ultrascale plus fpga from zyink which is

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now an AM dbrand and if you're not sure what an fpga is it stands for field

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programmable gate array essentially it's a device that you can configure to be

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more specialized for certain applications as opposed to a more

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typical desktop CPU that's designed in a more General way so it can run many

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different types of applications the fpga does include a small ARM processor that

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can run Linux but the rest of it can be programmed to render graphics with a

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hardware description language or HDL which tells the fbga how to actually

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organize its internal circuitry small cells that can accept many different

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types of logic functions using his knowledge of Graphics engineering Barry

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was able to build an architecture optimized for graphics rendering a

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process that took over 3 years starting from Simply getting an image on a screen

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then building in support for drawing polygons applying textures and blending

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textures together because commercial GPU designs are Trade Secrets Barry had to

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completely start from scratch instead of using a current GPU as a starting point

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explaining why it took so long but once the fpga is completed you of course need

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an actual board to install it on so it can act as a functional graphics card

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since you know you can't just insert a bare fpga into a regular motherboard I

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mean you can it just you're not going to have a good time therefore Barry also

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designed Fury gpus board a process he said took around 1 month and involved

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thinking carefully about how to lay components out on the board details like

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Trace length were very important as the various traces that feed the PCIe

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connector need to be very similar in length to help with signal Integrity

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placement of these traces was also important to avoid cross talk you don't

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want them too close together and he also had to consider what kind of power

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supplies to put on the card as the fpga itself needs a different voltage

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compared to the display outs after Barry got his board design right he then sent

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the files off to a PCB Fab in China and

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got back well some pcbs but keep in mind

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these were only boards meaning that to get a working graphics card he had to

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install over 400 individual components such as capacitors and resistors himself

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which of course involved lots of tedious soldering assembling and testing the

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hardware itself took Barry around another 2 months but at the end he had a

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card that wasn't too different looking from some graphics cards from the 1990s

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but with modern display outs and PCI

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Express X4 support and although current commercial graphics cards typically use

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x16 Fury GPU gets away with X4 as it

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moves far less data than the GPU you probably have in your desktop rig we're

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talking less than one megabyte per frame as it was designed with mid99s games in

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mind but even a perfectly executed piece of Hardware is useless without the right

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software so we'll tell you about the final piece of the puzzle right after we

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thank paperlike for sponsoring today's video protect your new iPad with a

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screen protector from paperlike paperlike 2.1 is manufactured in

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Switzerland and is designed to help you write and draw on your iPad just like

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you would on paper it uses their exclusive microe technology called Nano

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dos to emulate the stroke resistance of paper without sacrificing screen Clarity

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and paper like is so confident in their screen protector they offer a 100 day

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satisfaction guarantee this means that if you're not happy with your screen

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protector they'll offer a free replace M or refund within 100 days so make sure

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to check out paperlike at the link below like any graphics card Fury GPU needs

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some kind of driver in order to run Barry said it took him about 4 months to

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get the drivers to work Windows typically requires drivers to use an

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architecture called wddm and that

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requires support for Hardware features you'd only find in mass-produced gpus

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such as support for modern versions of direct 3D to get around this the fury

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GPU driver is designed such that Windows

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instead sees it as a kernel mode display only driver which basically means that

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it will consider Fury GPU as being a simpler device that just displays an

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image instead of doing any actual rendering however the driver itself can

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switch modes and allow the GPU to actually render frames so it kind of

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tricks Windows into thinking it's just showing the desktop when it's actually

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showing the game you're playing game

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cheats enabled the fin product uses a custom API that's similar to Vulcan and

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Barry was able to modify the renderer for the original Quake from 1996 getting

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it to run at 720p at around 60 frames per second unfortunately it doesn't yet

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support modern shaders which would allow for more lighting effects and other

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kinds of eye candy we're all used to today Barry told us that Shader support

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may be coming in the future but fpga have their limits compared to mainstream

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gpus as they sacrifice performance for

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customizability we may also see other games from the mid90s get ported over to

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the fury GPU but can you actually get your hands on a fury GPU and play games

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on it I'm sure you're asking Barry made it clear that this is mostly a passion

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project and that he doesn't have plans to produce the fury GPU for sale

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especially as it's a continual work in progress that's currently being operated

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in a full development environment so it's not like you can just slot it into

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your Windows PC install the drivers and have everything work flawlessly still

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it's a super cool Testament to what you can accomplish with enough time effort

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and patience with a soldering iron thanks for watching if you like the

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video check out our other video on how CPUs and gpus are different comment

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below with video suggestions and don't forget to subscribe and follow techwiki

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you've watched a couple of other videos and you didn't do that so I'm just don't

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forget