Use With ThunderBolt 1 (Non-ThunderBolt 2) Macs?
I'm fairly certain that ThunderBolt 1 users are out of luck being able to plug into 4K displays (with an adapter should the display not be ThunderBolt/Mini DisplayPort native) for the full resolution due to bandwidth limitations, but all may not be lost. Since a number of Macs (iMacs & the MacBook Pro) have 2 ports, it should be possible for a third party to develop a ...uh... doohickey that can use the combined bandwidth of the two ports in conjunction with software/drivers (and maybe even a scary firmware update!) to get 3840x2160 resolution to work. This is not without precedent as that was the only way to drive the IBM T220/T221 with the primitive DVI of the time. If something like this were developed, it might even be possible to use any extra ports (like the Mac Mini's HDMI and the MacBook Pro's HDMI) to assist a single ThunderBolt port to achieve that res. (though possibly a moot point since the MacBook Pro's HDMI can already do 4K, albeit at low refresh rates.)
There are tons of non ThunderBolt 2 Macs out there and until ThunderBolt 2 is on every new Mac, the numbers will keep growing, so there will be plenty of market for this theoretical ...doohickey. Once 4K displays are available at realistic prices (sub $500), I'll be itching to get one without having to get a new Mac and I can't be the only one. An adapter or even an Apple supported solution (!?) (A future 4K Apple Thunderbolt Display that supports a single ThunderBolt 2 port/cable or optionally the use of a couple for Thunderbolt 1) would be extremely popular. But should something like this not come to pass, a sizable market will be excluded from using 4K displays due to ThunderBolt 2 coming too late. If only they could have introed it sooner...
I'm fairly certain that ThunderBolt 1 users are out of luck being able to plug into 4K displays (with an adapter should the display not be ThunderBolt/Mini DisplayPort native) for the full resolution due to bandwidth limitations, but all may not be lost. Since a number of Macs (iMacs & the MacBook Pro) have 2 ports, it should be possible for a third party to develop a ...uh... doohickey that can use the combined bandwidth of the two ports in conjunction with software/drivers (and maybe even a scary firmware update!) to get 3840x2160 resolution to work. This is not without precedent as that was the only way to drive the IBM T220/T221 with the primitive DVI of the time. If something like this were developed, it might even be possible to use any extra ports (like the Mac Mini's HDMI and the MacBook Pro's HDMI) to assist a single ThunderBolt port to achieve that res. (though possibly a moot point since the MacBook Pro's HDMI can already do 4K, albeit at low refresh rates.)
There are tons of non ThunderBolt 2 Macs out there and until ThunderBolt 2 is on every new Mac, the numbers will keep growing, so there will be plenty of market for this theoretical ...doohickey. Once 4K displays are available at realistic prices (sub $500), I'll be itching to get one without having to get a new Mac and I can't be the only one. An adapter or even an Apple supported solution (!?) (A future 4K Apple Thunderbolt Display that supports a single ThunderBolt 2 port/cable or optionally the use of a couple for Thunderbolt 1) would be extremely popular. But should something like this not come to pass, a sizable market will be excluded from using 4K displays due to ThunderBolt 2 coming too late. If only they could have introed it sooner...