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What you're describing is the trashcan Mac Pro v2.0. It's not modular whatsoever in any way that the trashcan isn't already. Proprietary GPUs? Just four SODIMM slots? That's exactly what the pros hate about that design. If Apple released this, there'd be an uproar.

Then there's the issues:
The smallest feasible cooler for TR4 with an acceptable noise profile is the Noctua NH-U9 TR4-SP3. It's 125mm tall. With a vapor chamber you could probably shorten that somewhat, but you'd lose thermal transfer as you'll have nothing transferring heat perpendicular to the socket, just spreading it out to a larger area. The ends of the fins wouldn't do much. So you'd need more fan power than the dual 92mm fans on the NH-U9. Unless you want it to throttle massively, of course.
140mm fans mounted far away from a fin stack won't provide sufficient airflow through a dense, server-style vapor chamber cooler.
There wouldn't be room for dual GPUs with discrete coolers in there no matter what. That's why Apple went for a central cooling "engine" in the trashcan. It's the best solution when there are several heat sources spread out like that.
In that kind of volume, any multi-GPU setup would choke. A 750W PSU suggests dual <250W GPUs, but there's no way you'd be able to cool that without throttling or screaming fans in a volume that small. The design you're sketching out would be smaller than Zotac's 1080 Ti mini - and that has dual axial fans pointing straight into the fin stack.
Apple isn't switching to Ryzen any time soon. Even if they're at odds with Intel, AMD's laptop solutions can't replace Intel's yet, and Apple won't invest in an expensive transition to AMD as a short-term solution when they reportedly are working on their own ARM-based chips.
The GPUs you're listing are based on entirely unconfirmed rumors. What's the point? At this points it's all make-believe.

<blockquote data-quote="Valantar" data-source="post: 147913" data-attributes="member: 5738">What you're describing is the trashcan Mac Pro v2.0. It's not modular whatsoever in any way that the trashcan isn't already. Proprietary GPUs? Just four SODIMM slots? That's exactly what the pros hate about that design. If Apple released this, there'd be an uproar.Then there's the issues:<ul>
<li data-xf-list-type="ul">The smallest feasible cooler for TR4 with an acceptable noise profile is the Noctua NH-U9 TR4-SP3. It's 125mm tall. With a vapor chamber you could probably shorten that somewhat, but you'd lose thermal transfer as you'll have nothing transferring heat perpendicular to the socket, just spreading it out to a larger area. The ends of the fins wouldn't do much. So you'd need more fan power than the dual 92mm fans on the NH-U9. Unless you want it to throttle massively, of course.</li>
<li data-xf-list-type="ul">140mm fans mounted far away from a fin stack won't provide sufficient airflow through a dense, server-style vapor chamber cooler.</li>
<li data-xf-list-type="ul">There wouldn't be room for dual GPUs with discrete coolers in there no matter what. That's why Apple went for a central cooling &quot;engine&quot; in the trashcan. It's the best solution when there are several heat sources spread out like that.</li>
<li data-xf-list-type="ul">In that kind of volume, any multi-GPU setup would choke. A 750W PSU suggests dual &lt;250W GPUs, but there's no way you'd be able to cool that without throttling or screaming fans in a volume that small. The design you're sketching out would be smaller than Zotac's 1080 Ti mini - and that has dual axial fans pointing straight into the fin stack.</li>
<li data-xf-list-type="ul">Apple isn't switching to Ryzen any time soon. Even if they're at odds with Intel, AMD's laptop solutions can't replace Intel's yet, and Apple won't invest in an expensive transition to AMD as a short-term solution when they reportedly are working on their own ARM-based chips.</li>
<li data-xf-list-type="ul">The GPUs you're listing are based on entirely unconfirmed rumors. What's the point? At this points it's all make-believe.</li>
</ul></blockquote>

[QUOTE="Valantar, post: 147913, member: 5738"] What you're describing is the trashcan Mac Pro v2.0. It's not modular whatsoever in any way that the trashcan isn't already. Proprietary GPUs? Just four SODIMM slots? That's exactly what the pros hate about that design. If Apple released this, there'd be an uproar. Then there's the issues: [LIST] [*]The smallest feasible cooler for TR4 with an acceptable noise profile is the Noctua NH-U9 TR4-SP3. It's 125mm tall. With a vapor chamber you could probably shorten that somewhat, but you'd lose thermal transfer as you'll have nothing transferring heat perpendicular to the socket, just spreading it out to a larger area. The ends of the fins wouldn't do much. So you'd need more fan power than the dual 92mm fans on the NH-U9. Unless you want it to throttle massively, of course. [*]140mm fans mounted far away from a fin stack won't provide sufficient airflow through a dense, server-style vapor chamber cooler. [*]There wouldn't be room for dual GPUs with discrete coolers in there no matter what. That's why Apple went for a central cooling "engine" in the trashcan. It's the best solution when there are several heat sources spread out like that. [*]In that kind of volume, any multi-GPU setup would choke. A 750W PSU suggests dual <250W GPUs, but there's no way you'd be able to cool that without throttling or screaming fans in a volume that small. The design you're sketching out would be smaller than Zotac's 1080 Ti mini - and that has dual axial fans pointing straight into the fin stack. [*]Apple isn't switching to Ryzen any time soon. Even if they're at odds with Intel, AMD's laptop solutions can't replace Intel's yet, and Apple won't invest in an expensive transition to AMD as a short-term solution when they reportedly are working on their own ARM-based chips. [*]The GPUs you're listing are based on entirely unconfirmed rumors. What's the point? At this points it's all make-believe. [/LIST] [/QUOTE]

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