foreign yes we are actually checking out a Mac GPU in today's video and that's not because I'm a big fan of Apple because that's not the case but because this should be the last ever made consumer dual GPU graphics card dual GPU graphics cards were a bigger thing I would say from maybe 2005 to 2014 but after that they were pretty much that the last made consumer card from any Nvidia side was the Titan Z that was in 2014 so that's already nine years ago that's longer than I expected when I did the research and the last consumer made card by AMD was the Radeon Pro Duo that was in 2016. what we have here is the AMD Radeon Pro W 6800x dual and drawing by the name you could draw the conclusion that this is a 6800 x with dual GPU and that's pretty much the case also if you look up at the specs it's featuring 3840 Shader units which is the same on an RX 6800 but this comes with and it will depend how you look at this but in theory it has a 64 gigabyte of memory gddr6 which is quite a lot but then it also depends are the gpus working in parallel or are they working together because typically one GPU can only access its memory so one GPU can only access 32 gigabyte of memory so there has always been a debate I personally think it should be listed with 32 gigabyte of memory total and this is for the Mac Pro 2019 I always wanted to check out how this card looks because you can find some render images online but I've never seen anyone disassemble this card and it should look absolutely beautiful when this was originally listed in 2021 here in Germany it was listed starting from 5000 typically around 6 000 Euros I was able to buy this at a cheap 3500 Euro which I thought is an okay price for me to take a video and then added to my collection but let's check out this card in more detail this week powered by hetzner if you have a workload that doesn't require 56 cores but still a high perform you should look into the ax 41 nvme the rise of 5 3600 base server is equipped with dual 512 gigabyte nvme ssds 64 gigabyte of memory and costs only 37.30 euro per month as usual with heads now there's no minimum contract period and you can use unlimited traffic find out more in the link below one thing that makes this card quite a bit different from our normal consumer GPU is the fact that we have an MPX module and what this means we will see once we take it out of the box and there it is the 6800x Dual which just from the first look is a huge black brick but also beautiful design it kind of reminds me of a Founder's Edition card from Nvidia it's a bit difficult to yeah shoot video footage from it because the autofocus will just go completely nuts with the surface but like First Look it's just a massive bike thing however if we flip it around we can see yeah it's a very thick one I mean nowadays with the 4090 it's probably not such of a surprise but back then when it was released it was definitely bigger than most of the cards out there we can already spot mounting of one GPU and also the second GPU right here and we can see the connectors which in front is just a normal pcie x16 interface but in the back it's this MPX part and even though it might also look like pcie it's a different pin density so we have more pins on the same length and in addition we have this thick one right here which I would personally assume that it's 12 volt on one side and then ground probably on the other side that's something we will try to find out because apart from that there are no additional power connectors and this card is pulling up to 400 watt at least that is the rated TDP when we look at the cooling there is a good amount of fins and there is no fans like we can look all the way through the card and that's just because that's how the Mac Pro is designed so you plug it in and then we have some fans on the case that is pulling the air through the card and that's probably also the case why we have this like rather like white fin stack it's not like it's a it's a lot of surface area but it's not very fine and that's I guess because they just want to avoid that the fans have to spin at a high RPM to push some air through if we look at the front also this part is absolutely beautiful we have a lot of aluminum it's probably milled aluminum um like the the front i o part looks really good we have one HDMI and those should probably be the Thunderbolt connectors for display connection there's one more connector on top of the card which I think is something like Crossfire or probably just normal Crossfire because you can theoretically hook up two of these cards so you can run quad GPU but I'll just try to remove this cover foreign that's interesting my initial thought was that this is just a cover but when I removed it there was a solid PCB underneath and you can see there is some kind of circuit I cannot see any traces but they could be inside uh yeah it could just be that this is some kind of like Crossfire bridge to actually connect both of the gpus and here we would have the recording connectors what I also find an interesting feature is this lever on top right so actually if I pull this if we look around can see that this will be to pull the card out of the slot which is very convenient and I mean nowadays we have some main boards that allow to like remove the small thing at the end of the pcie slot but that's a very cool solution it's time to remove at least part of the cover when I try to remove the back plate like I removed all of the screws I just noticed that this thing goes basically all around the card and I guess this is a sticker right here which we will have to remove and probably underneath we will find more screws so apple style yeah repairability and everything is usually great one tip if you have some case like this you can always use a heat gun to try to find screw holes underneath the stickers because it seems like this sticker is very difficult to remove okay so at least I could remove the i o cover that is a beautiful piece of metal even it's CNC milled extremely high quality I really like that this is definitely more difficult than I expected it's because the like shroud is a bit u-shaped and even though I removed everything like the lever mechanism and everything it's still a bit complicated to get it off like if I try to remove it it instantly hits like parts of these caps right here but because it's a u like I have no like no room to to take it off this yeah okay apparently you indeed have to like Bend this a little bit so you can lift this up but I'm not a friend of that okay at least thermally the cover also makes sense because you can see all these I think it's a thermal putty and it's making contact with all the memory modules so they at least got that that the cover is also it has a thermal function foreign like tiny damage when I try to like remove the cover yeah it's just an apple thing that it's very unconvenient to to like remove or disassemble anything so that's not a surprise but like already the back side is such a beauty I'm absolutely looking forward to see how this thing looks from the front probably one of the more expensive pillows uh she's using I removed all remaining screws and what you can see here are like unlike on Nvidia cards on recent NVR cards these are not Springs let's say on a 4090 you have these Springs to increase the mounting pressure but for here it just seems to be to enforce yeah like the the pressure or the PCB to spread the the pressure more evenly but it's not a spring or anything so it doesn't increase the mounting pressure it's a bit sticky at least on the points of the screws it's time to try to remove the PCB there's a lot of black stuff on this card I'm not sure why here we have the massive heatsink with the huge fin stack two areas for GPU contact and the rest is for vrms and also the memory everything covered in this black stuff which is like a thermal putty but like a Black Version I didn't see before as well but let's just move over to the PCB what an absolute thing of beauty and it's also quite cool that because it doesn't use any fans it was so easy to disassemble so there was no like additional fan cable or anything I had to remove but yeah just looking at the layout and the components and everything what a nice cart and what you might notice is that if you look at this thermal putty again you can see that it's probably only covering maybe like 75 like 50 to 75 percent of most of the components so it doesn't cover like these inductors for example fully or also the memory ICS and you could probably say that this is like bad quality doesn't cover the components it will run hot but it's usually fine like for inductors it could maybe help like one degree if you fully cover it but especially for memory ICS the hotspot is just like purely in the center and the chip is also a lot smaller typically than the package itself so this kind of coverage should be okay for the memory chips and also for the inductors even though it doesn't look like technically nice but if you look at this chip which is probably some kind of like multi-gpu Bridge chip I mean this could have been covered even though typically they have a quite low TDP so the heat output is not that high but you can see that it's not covering everything of the Silicon so I mean this could be done better on a technical level I guess it's fine it will probably work fine because if you check out reviews and everything temperatures always look good in these but yeah could probably be improved quickly trying to figure out the voltage Supply if I measure to ground from this connector it's showing about 0.9 to 1 ohm so that's indicating that this point right here is probably just ground whereas measuring the other one on the back side to ground you can see it's an increasing resistance it's also rather High Resistance and probably this should be input 12 volt I will not clean the card for now because I also want to test if it's possible to detect at least partially the card with the windows system I'm not quite sure how much of the MPX connector is needed certainly we have a full pciex 16 connector and we have the power supply next to it that means that I will just have to solder a cable to the 12 volts power supply and see if this helps and if we can at least get a display signal from it and see if this card is getting detected in a Windows system and for that I just don't want to remove like all the thermal stuff for now because I just want to put it back onto the heatsink for this I will reuse this 12 volt high power cable which I already partially abused so I will just remove two of that 12 volt and two of the ground wires add them to the card and then see if this works first of all adding some flux 12 volt and ground are attached it's not the most beautiful silver connection but yeah the PCB takes up a lot of heat but in the end it's just to test if this works out or not so it should be fine I will assemble the card and also assemble a test trick and then we will see what happens I'm almost done I attached HDMI power is there setup is almost ready to go the only thing is that you just cannot connect a normal pcie Riser cable to it because there is this part of the PCB right here which would collide with any normal pcie Riser cable so I had to remove like the rear part of this connector now I will attach this and then we will see if there's any chance to get a display signal no smoke also no explosions hmm so far nothing though not sure if I have to connect the bridge I'll just try it I tried a few more things but I wasn't able to get a display signal at post so I'm just running off the igpu and see if we can detect something in device manager the thing is theoretically speaking it could be that there is some additional voltage missing from the MPX connector unfortunately there is no detailed pin out so I have no clue what's actually fat to the card and maybe it could be that there is like five volt or a 3.3 volt missing somewhere even though this is also getting delivered over the pcie so at least according to spec but that's a bit difficult to debug let's just check in gpuc and that looks good so we have three display output devices the first one is igpu I'm not using any drivers so that's why it looks like that but yeah here we have uh Navi 21 3840 shaders so that's also the correct amount of shaders doesn't detect any memory and or anything like that it's just running off the like the basic display output driver that's why it's also listing the driver data 2006. spawning of x16 3.0 which is interesting let's check for the second GPU detected exactly the same way so it's also running on x 16 3.0 yeah just the driver is missing I will see if there is a way to install something I'll try I guess the easiest way would be to just install the normal w6800 driver for Windows not sure if you can even install that but I will just try I didn't expect it to be easy and probably not to be possible we're just running this tells me error 173 like not detecting any AMD GPU all right as expected it's not that easy to install the driver I did a lot of research there's also an article on one of the Apple Pages that if you want to run this on a Windows platform then you might have to look for a different driver and they're linking to an AMD page and if you download a driver it just doesn't work yeah I guess I mean it's not intended to be used like that so I'm not quite sure if there is a way to do it if you have an idea how you could do it then please let me know I also tried like installing it manually over the device manager and everything the typical things you could do I tried but with no luck I also had to place a fan in front of the heatsink because it's actually there's quite some heat coming out of the card even though it's just pretty much running in idle but you can see it's running that's why we can also see it in gpu-z so I mean that's a step further than I originally expected without the MPX connector but yeah so far not possible with 3D load so I will disassemble it again and then we can finally see the card in a clean State here we have the w6800 duo in the final and clean State I also removed the cable again just to have some beauty shots of the card it's a very beautiful card I also checked up this micro chip 52x is 64. it is a bridge chip for pcie that features 52 Lanes in total so it can basically combine both of the gpus to the pcie x 16 slot honestly speaking I'm not quite sure why this MPX slot exists why this is necessary there is no pin out or anything but if you can't find something please let me know and also if you have an idea how we can probably or theoretically install the driver that would also be nice then we could do a follow-up maybe on this absolutely beautiful piece of tech I just talked to another YouTuber from Germany he's called Manuel from Hardware deals and he just pointed me towards the boot camp driver from Apple and this seems to work we got one step further at least after a restart we can see the Radeon Pro W 6800x dual correctly detected also the memory size is correctly detected however you can still see that it's detected with 0 megahertz but two gpus are there but yeah and the sensor is also zero but we made progress we made progress and also in device manager we can see both gpus correctly detected and also installed at least there is no error marked on here in the AMD driver though I cannot find anything to let's say enable Crossfire I can see both gpus but cannot enable multi-gpu but I will now try 3D Mark Times by because this should actually allow to render over the third GPU or like the second GPU even though I'm currently running the display output over the igpu of the CPU in Times by extreme we can see the pro w6800x dual listed which I find interesting it's not a single GPU that's listed it looks like it's both combined but we can also see that we have this message which typically pops up because we are running the display output over igpu let's just find out what happens if we click run interesting so just shut down not sure why maybe something overheated I have to check the thing is because I cleaned the card earlier all the thermal putty is gone I'm still running the same kind of setup with the fan in the end but I'm still just running thermal paste pretty much on both the gpus and the PCI Express Bridge chip but the rest is pretty much not cooled which I think should be fine for a simple and quick Benchmark run I will just double check at least so far it's still running okay just shut down again I will have to disassemble the card quickly and check if there is some paste or something missing I guess it was a little bit less on the PCI Express Bridge chip gpus looked fine but we'll just add a ton more paste on there changed pets and also the thermal paste but the problem still exists the last guess I would have is that maybe the PSU is doing ocp because I'm just attaching like I'm just running the car basically over two wires which could be a bit too much so that means I might have to add more wires I'm adding one more ground and one more 12 volt and at the same time I also bridged the 12 volt high power adapter to kind of tell the PSU to deliver up to 600 watts that might also be the trick and adding the third wire seemed to at least solve the problem partially because right now I'm still running the 3D Mark Times by extreme GT1 at least the Times by extreme GT Bond passed and that should be enough to already get an idea of how much performance we can get out of this thing and we have 97.21 FPS thanks again to Hardware deals for pointing me towards the correct driver because that was actually quite nice to see that we can hook up an MPX card that is totally not meant to be plugged in any kind of normal pcie system or Windows based system but you can use it and the performance is actually quite good so if you look into the chart with 97.2 FPS that is beating at 7900 xdx or a 4080. I mean it makes sense because it's dual 6800 gpus but that also means that Crossfire was actually working even though there was no option or anything in a driver it seems to be natively working on a card which is very impressive and unfortunately I couldn't manage to run a full 3d mic test because the PSU kept shutting off I might have to solder even more wires to the card I'm not quite sure how much power it's pulling might be that I'm also thermally limited somewhere that's definitely something for a follow-up video if you want to see it might also be interesting to maybe build a water block for this one but yeah it's like close to noon right now and um somebody still has to cut this video until tomorrow so that's it for today thanks for tuning in see you next time bye [Music]