some Apple notes I found on the new Mac Pro (some via http://xlr8yourmac.com).
4K displays: "With the Mac Pro (Late 2013), you can connect:
Two 4K Ultra HD TVs1 and up to two 4K displays via Thunderbolt.
You can use the HDMI port for one of these and a Mini DisplayPort to high-speed HDMI adapter for the other. If you do, don't plug the second Ultra HD TV into the bottom two Thunderbolt ports on the Mac Pro since they are on the same bus as the HDMI port. Mac Pro (Late 2013): Using multiple displays explains in more detail how to use the different Thunderbolt configurations on the Mac Pro (Late 2013)." source: http://support.apple.com/kb/HT6008?viewlocale=en_US also see: Mac Pro (Late 2013): Using multiple displays
conclusion: using HDMI port for a TV/display leaves you with only 2 more 4K possible connections as the HDMI port is on the same bus as the bottom 2 TB2 ports.
•Audio: Also, only one of the audio outputs can be used for digital audio, however, HDMI can be used for digital audio: "You can use the HDMI port as a digital audio port to compatible devices, such as surround sound receivers." source: http://support.apple.com/kb/HT6024?viewlocale=en_US see also: Mac Pro (Late 2013): Audio from game might stop after wake from sleep
• PCIe Flash (drive) is upgradeable (though no one has it yet except Apple): Mac Pro (Late 2013): Removing and installing flash storage
more that might be of interest:
Mac Pro (Late 2013): Installing or replacing memory
"six Thunderbolt 2 ports connected using three independent Thunderbolt 2 controllers. Each port supports up to 20Gb/s of data throughput using channel bonding. Thunderbolt supports up to six devices per port for a total of up to 36 devices connected to your Mac Pro" source: Mac Pro (Late 2013): External features, ports, and connectors see also Mac Pro (Late 2013): Issues connecting a Thunderbolt device to another Thunderbolt device
Mac Pro: Power consumption and thermal output (BTU/h) information
Mac Pro (Late 2013): Recommended software and firmware updates
The main question that remains (I hit a wrong button and posted this before I meant to), is whether the graphics cards/RAM is user upgradeable. (I will look to reviews to see if they find out). Or iFixit will do teardown soon and we will know then.
• a few thunderbolt options: (you don't have to pay top dollar from apple for PCIe expansion, to keep PCI cards):
http://eshop.macsales.com/shop/Thunderbolt/
MacMall has a couple PCIe expansion boxes. But, if you search for "Thunderbolt" you get 1227 items. Sonnet carries a variety of TB/2 products. Magma. Rack mount: Netstor.
The new Mac Pro is not more limited, but more flexible, more expandable with TB2. (If only the complainers could look forward instead of backward.)
4K displays: "With the Mac Pro (Late 2013), you can connect:
Two 4K Ultra HD TVs1 and up to two 4K displays via Thunderbolt.
You can use the HDMI port for one of these and a Mini DisplayPort to high-speed HDMI adapter for the other. If you do, don't plug the second Ultra HD TV into the bottom two Thunderbolt ports on the Mac Pro since they are on the same bus as the HDMI port. Mac Pro (Late 2013): Using multiple displays explains in more detail how to use the different Thunderbolt configurations on the Mac Pro (Late 2013)." source: http://support.apple.com/kb/HT6008?viewlocale=en_US also see: Mac Pro (Late 2013): Using multiple displays
conclusion: using HDMI port for a TV/display leaves you with only 2 more 4K possible connections as the HDMI port is on the same bus as the bottom 2 TB2 ports.
•Audio: Also, only one of the audio outputs can be used for digital audio, however, HDMI can be used for digital audio: "You can use the HDMI port as a digital audio port to compatible devices, such as surround sound receivers." source: http://support.apple.com/kb/HT6024?viewlocale=en_US see also: Mac Pro (Late 2013): Audio from game might stop after wake from sleep
• PCIe Flash (drive) is upgradeable (though no one has it yet except Apple): Mac Pro (Late 2013): Removing and installing flash storage
more that might be of interest:
Mac Pro (Late 2013): Installing or replacing memory
"six Thunderbolt 2 ports connected using three independent Thunderbolt 2 controllers. Each port supports up to 20Gb/s of data throughput using channel bonding. Thunderbolt supports up to six devices per port for a total of up to 36 devices connected to your Mac Pro" source: Mac Pro (Late 2013): External features, ports, and connectors see also Mac Pro (Late 2013): Issues connecting a Thunderbolt device to another Thunderbolt device
Mac Pro: Power consumption and thermal output (BTU/h) information
Mac Pro (Late 2013): Recommended software and firmware updates
The main question that remains (I hit a wrong button and posted this before I meant to), is whether the graphics cards/RAM is user upgradeable. (I will look to reviews to see if they find out). Or iFixit will do teardown soon and we will know then.
• a few thunderbolt options: (you don't have to pay top dollar from apple for PCIe expansion, to keep PCI cards):
http://eshop.macsales.com/shop/Thunderbolt/
MacMall has a couple PCIe expansion boxes. But, if you search for "Thunderbolt" you get 1227 items. Sonnet carries a variety of TB/2 products. Magma. Rack mount: Netstor.
The new Mac Pro is not more limited, but more flexible, more expandable with TB2. (If only the complainers could look forward instead of backward.)