When the Seiki 39" display appeared this summer for $800, it caught my attention, but the lack of 60Hz refresh was a showstopper. With the price falling under $500 delivered 2nd day with Amazon prime, a 30 day no questions asked return policy, and no charge for return shipping, I had to give it a try.....
Mac Pro bench setup:
2009 Mac Pro - Flashed to 2010 firmware
Intel 990X CPU 6c @ 3.46 / 32GB Ram
Gigabyte AMD 7950 - 3GB Ram / Flashed EFI with 5.0Gts Link speed mod.
- HDMI does not respond to display
- Active or Passive MDP -> DVI -> HDMI offers reliable connection.
- 24Hz / 25Hz / 30Hz @ 4k / 1080P HiDPI selectable from UI.
EVGA 680GTX - 2GB Ram / Flashed EFI
- HDMI connection works
- Display is locked at 30Hz, refresh rate change requires extra app
- 4k / 1080P HiDPI selectable from UI.
- Under $500 delivered!
- Crisp output at 3840x2160 or 1920x1080HiDpi @ 30Hz (sharpness must be set to 0)
- Verified Compatibility on a 2009/2010 mac pro with a flashed AMD 7950 and Nvidia 680GTX
- 110 Pixel per inch resolution. (compared to 110PPI on a Dell 3007wfp-hc)
- Works great for content non-gaming usage. Can display lots of code, web pages, office apps, etc with out issue/
- 1920x1080P @ 60Hz
- No dead pixels
- With proper calibration, the display's color and greyscale can be greatly improved.
- 30Hz refresh rate at native resolutions.
- 1920x1080P @ 60Hz - image is degraded due to settings baked into the TV's firmware that cannot be adjusted through the Service menu.
- Fine tuning of image requires access to the Service Menu - press menu then 0000 to access
- 60Hz variants of these displays should be appearing post CES - Q1 / Q2 2014 for around $800 +/-.
- Display Height and angle cannot be adjusted.
For power users needing more desktop real estate at one heckuva bargain price, nothing can touch the seiki 39" 4K display. Personally, I'm very happy with the Seiki and the 3840x2160 workspace I use to develop iOS and OS X apps. While there are other options from Asus and others with a $3000+ price tag, the $500 option from Seiki fits my needs.
Terminal Tweaks for this display
- disable VSYNC and associated LAG -sudo defaults write /Library/Preferences/com.apple.windowserver Compositor -dict deferredUpdates 0 (0 = off 1 = on)
- modify font smoothing - defaults -currentHost write -globalDomain AppleFontSmoothing -int 1 (0 = off 2 = MAX)
- prompt $p$g equivalent for OSX terminal - PS1='$PWD>';export PS1