Remember, these cards may have hardware support for deep color, but drivers probably don't allow you to use it in most cases.
How am I supposed to know if that's happening? I have an Nvidia NVS 3100M professional GPU in my work laptop and see nothing related to color bit depth adjustments. Is there some sort of test (without a colorimeter) that I can use to determine if the display is indeed showing the Adobe RGB spectrum it's calibrated for and capable of? My friend uses Adobe CS5.5 and I know Photoshop has 30-bit color support so the software end is taken care of. This Nvidia help topic
suggests that Windows Aero will be disabled when 30-bit color is enabled, but I'm not sure how/if that will happen when the Dell U2410 is a secondary monitor to his TN laptop screen which obviously doesn't do 30-bit color.
I guess I'm still trying to justify why I bought him a $400 monitor if it will never be able to display more than 16.7 million colors (8-bit output) unless he upgrades to a system with a Quadro or FirePro GPU.
Mabe I'll have to send Geoff a PM since he uses Asus PA246Q monitors.
It really is a better idea to go with a workstation card to avoid all that mess if at all possible.
I wasn't aware of these limitations when I helped him pick out his laptop with an Nvidia 540M GPU, but I will definetly keep this thread in the back of my mind for future "consultations."
Main: i5-3570K, ASRock Z77 Pro4-M, Asus GTX660 TOP, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Seagate SSHD, 8GB 1866MHz G.Skill, Crosley D-25 Case Mod