MP 7,1 Nvidia’s RTX 3090/ 4090/ A6000/ 6000 Ada in a Mac Pro (2019)

[smgfreak]

The Vega II Duo gets power from a different part of the motherboard - the MPX slot has a super wide power pin for all that current. Still, one would hope that if the dual 8 pin power connectors don't have enough power, then the computer would just turn off instead of melt.
[/QUOTE]

Connect Belking Cable to Terminal 1 + 2 + 3 you have plenty of Power

 

[OkiRun]

Will the RTX 3090(s) give better gaming than a Pro Vega II or Vega II Duo? Does it give 6K on the XDR?

 

[joevt]

Will the RTX 3090(s) give better gaming than a Pro Vega II or Vega II Duo? Does it give 6K on the XDR?

yes, yes, yes.

 

[OkiRun]

yes, yes, yes.

Then that is impressive ~

 

[joevt]

Then that is impressive ~

Is it? Didn't the 2070, 2080 etc, already have better gaming? They already had DSC to do 6K on the XDR.

 

[fireedo]

I am Using inside the Mac Pro 7.1 a NVIDIA FE RTX2080ti with eVGA Hybrid XC Water Cooler and 120mm Radiator.
my Card has the Revision where i can run the GALAX/KF2 Edition BIOS / firmware that lets me run the Card at 380TDP.
and i only habe 2 x 8 PIN Belkin Cables . under WIN 1909 play Games in Real Ultra Settings such as division2 , GhostREcon Breakpoint
my Card runs allways Overclocked at Max and draws the MAX 360 to 380WATT . since last 5 Months never had a Crash.

Would you mind to share picture(s) inside your Mac Pro with RTX 2080 TI Hybrid Water Cooler, please ?

 

[OkiRun]

Is it? Didn't the 2070, 2080 etc, already have better gaming? They already had DSC to do 6K on the XDR.

It is the thought to me that it is better gpu than Pro Vega II Duo

 

[joevt]

It is the thought to me that it is better gpu than Pro Vega II Duo

Pro Vega II Duo is two GPUs. How many games benefit from two AMD GPUs (CrossFire)? If 2080 is at least as good as the Vega II, and 3080 has twice the performance of 2080 then it should easily beat a Vega II Duo.

 

[OkiRun]

Pro Vega II Duo is two GPUs. How many games benefit from two AMD GPUs (CrossFire)? If 2080 is at least as good as the Vega II, and 3080 has twice the performance of 2080 then it should easily beat a Vega II Duo.

Gaming will be more difficult on Apple Silicone Mac Pro?

 

[joevt]

Gaming will be more difficult on Apple Silicone Mac Pro?

You won't be able to boot Windows, therefore no Windows gaming.
Linux gaming that depends on Windows API emulation won't work.
Mac games might work ok.
You'll want to use Mac games updated and compiled for Apple Silicon for best results.

 

[Graham King]

Has anyone seen a 3080 with a blower fan?

 

[kittiyut]

I am very much interested in putting a 30xx in my 7,1 for Cyberpunk 2077 and Flight Simulator 2020. Will be watching this thread.

What do you have now, and how does it perform with FS2020?

 

[Graham King]

What do you have now, and how does it perform with FS2020?

W5700X. At 4K ultra settings I get around 2 FPS. It’s playable at 1080 which looks awful.

 

[ArPe]

Has anyone seen a 3080 with a blower fan?

None out of 19 cards released. 18 are triple cooling fan and 1 is twin fan.

 

[Graham King]

None out of 19 cards released. 18 are triple cooling fan and 1 is twin fan.

So does that mean the partial blower FE is our best bet?

 

[ArPe]

So does that mean the partial blower FE is our best bet?

The FE is larger than the 3rd party cards and uses a proprietary 12 pin power connector, but it comes with an adapter.

Board partner cards are a bit smaller, most use dual 8 pin power and you have the benefit of some being cheaper and overclocked out the box.

But I really think that some of you who have been using Boot Camp should now consider building a PC on the side. So when you do move on to Apple Silicon that PC will always be there for your non-macOS needs and Remote Desktop.

 

[Graham King]

The FE is larger than the 3rd party cards and uses a proprietary 12 pin power connector, but it comes with an adapter.

Board partner cards are a bit smaller, most use dual 8 pin power and you have the benefit of some being cheaper and overclocked out the box.

But I really think that some of you who have been using Boot Camp should now consider building a PC on the side. So when you do move on to Apple Silicon that PC will always be there for your non-macOS needs and Remote Desktop.

Will the FE 3080 will fit alongside my W5700X? Is there a downside to using the 12pin adapter as opposed to two 8 pins? If not, I’m thinking about going this route.

I use Windows 10 only for occasional gaming so I can’t justify the price of a PC right now. Will definitely reconsider when I move to Apple silicon.

 

[impulse462]

I would get this if only I could successfully install ubuntu on the 7,1

 

[joevt]

Will the FE 3080 will fit alongside my W5700X? Is there a downside to using the 12pin adapter as opposed to two 8 pins? If not, I’m thinking about going this route.

I use Windows 10 only for occasional gaming so I can’t justify the price of a PC right now. Will definitely reconsider when I move to Apple silicon.

The 12 pin connector doesn't matter. The card comes with a dual 8 pin to 12 pin adapter.

The two MacPro7,1 MPX bays are four slots wide so the 3080 will fit. I guess the question is: Is the clearance on the backplate side of the 3080 enough for the cooling method used by the 3080?

The Mac Pro is oriented differently than PC desktop cases. In the MacPro7,1, the air from the MacPro7,1 front fans will blow over the component side of the 3080. The back-side fan of the 3080 will try to suck some of that air in and blow down toward the power supply but that direction is blocked by the power supply (if you try MPX bay 1) or the MPX module (if you try MPX bay 2). Maybe there's a few millimetres of clearance? Otherwise you might want to put the card in slot 4 but that would not be a good use of PCIe lanes. Then that air is blown out the rear of the MacPro7,1 by the fans of the MacPro7,1.

The front fan of the 3080 is ok - it will take air from the MacPro7,1 fans that flows over the component side of the 3080, pull the air into the 3080 and out the rear of the MacPro7,1.

In a PC desktop case, the GPU would be above most of the other PCIe cards and the back-side fan of the 3080 will blow air up mostly unobstructed toward the top of the PC desktop case (into the area of the CPU which is kind of strange). On a PC motherboard the slot below the GPU might be free or have enough spacing for the intake of the front fan and the back-side fan.

Edit:
Here's a video describing the air flow. The linked time shows the blocking of the air flow that a MacPro7,1 will experience.

 

[Graham King]

I see what you mean @joevt. So while none of the 30 series coolers are ideal, a double or triple fan open-air cooler would be the best bet for now?

Is there any advantage to getting a triple 8-pin card? Because if we have an MPX GPU does that mean we have 4x available 8-pins?

 

[joevt]

I see what you mean @joevt. So while none of the 30 series coolers are ideal, a double or triple fan open-air cooler would be the best bet for now?

Open-air probably would be better but the FE cards might be usable. Someone will have to do testing.

Is there any advantage to getting a triple 8-pin card? Because if we have an MPX GPU does that mean we have 4x available 8-pins?

Triple 8-pin cards can be overclocked more. I think all four of the 8-pins are available even if an MPX module obscures one pair of them. There's also one 6 pin available.

 

[gabrielefx]

I have this configuration except I'm using 2x2080Tis blower edition by Zotac.
Within Windows 10 I can tweak the Mac Pro fans at full speed, the bottom and middle one. I also could tweak the ram+ssd blower cooler but the temperatures are ok also if my Mac renders 24/7. Tweeking cpu fan is not necessary because the gpu rendering doesn't use it except to compile the 3d scenes.
I also tweaked the RTX fans because I overclocked them.
The Mac Pro 7.1 with 2 fans at full speed + 2 RTX gpus produces a loud noise while rendering.
I don't know what's the noise produced by the series 3000, probably the cooling design is an hybrid version between the blower and axial version.
I think the Mac Pro 7.1 could dissipate very well the heat produced by 2 RTX3080s.
The only issue is the few vram installed. I will wait for the 20GB version to replace my 2080Tis.
I use the Radeon 580X only for the Windows 10 desktop. As you can see there is enough space for air circulation.

 

[richinaus]

I have this configuration except I'm using 2x2080Tis blower edition by Zotac.
Within Windows 10 I can tweak the Mac Pro fans at full speed, the bottom and middle one. I also could tweak the ram+ssd blower cooler but the temperatures are ok also if my Mac renders 24/7. Tweeking cpu fan is not necessary because the gpu rendering doesn't use it except to compile the 3d scenes.
I also tweaked the RTX fans because I overclocked them.
The Mac Pro 7.1 with 2 fans at full speed + 2 RTX gpus produces a loud noise while rendering.
I don't know what's the noise produced by the series 3000, probably the cooling design is an hybrid version between the blower and axial version.
I think the Mac Pro 7.1 could dissipate very well the heat produced by 2 RTX3080s.
The only issue is the few vram installed. I will wait for the 20GB version to replace my 2080Tis.
I use the Radeon 580X only for the Windows 10 desktop. As you can see there is enough space for air circulation.

Awesome !
Do you just use the machine for windows and what are you rendering with?

 

[joevt]

I have this configuration except I'm using 2x2080Tis blower edition by Zotac.
...
I think the Mac Pro 7.1 could dissipate very well the heat produced by 2 RTX3080s.
...
I use the Radeon 580X only for the Windows 10 desktop. As you can see there is enough space for air circulation.

Yes, a double wide MPX module (like the 580X shown in your picture or a 5500X) leaves plenty of room for air exhaust for the RTX 3080 in slot 3 (MPX bay 2). The quadruple wide MPX modules (W5700X, Vega II, Vega II Duo) may give the RTX 3080 problems.

 

[RyanFlynn]

Anyone know what this 12 pin adapter looks like? If it’s meant to plug in to the PSU, it won’t work, because the Mac Pro board already needs an adapter. If it’s an adapter at the cable, then we are good.