All Posts by Date or last 15, 30, 90 or 180 days.
also by Lloyd: diglloyd.com photography and WindInMyFace.com

Thank you for buying via links and ads on this site,
which earn me advertising fees or commissions.
As an Amazon Associate I earn from qualifying purchases.

Other World Computing...
B&H Photo...
Amazon
As an Amazon Associate I earn from qualifying purchases.
Upgrade the memory of your 2020 iMac up to 128GB
Upgrade the memory of your 2020 iMac up to 128GB

Why There is no New 5K External Display to Match the iMac 5K

The late 2014 iMac 5K has a 5120 X 2880 retina display.

But don’t expect to see an external 5K display any time soon: even Thunderbolt 2 cannot deliver the bandwidth needed for 5K, and that’s even 8 bit color (vs 10 bit color, for which OS X still has no graphics drivers).

Bandwidth: 5120 X 2880 X 3 bytes = ~44MB/frame @ 60 Hz = 2.654 GB/sec, versus 3840 X 2160 X 3 bytes = ~25MB/frame = 1.49 GB/sec for a 4K UltraHD display. Thunderbolt 2 can handle a 4K display but that’s where it maxes out.

As far as MPG understands, Thundebolt 2 is limited to 20 Gbps bandwidth, or 2.5GB/sec, so 5K video is a bit too much.

View all handpicked deals...

SanDisk 256GB Extreme PRO UHS-I SDXC Memory Card
$100 $55
SAVE $45

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__