SDI input Latency.

[samsc]

Hi all,
I currently use a 2009 8 core Mac Pro with the ATI video card with Catalyst 4.2 m257. For SDI input I use a Blackmagic Decklink Extreme. I understand that the way the decklink card processes the video causes 1 to 2 seconds of latency. How is the Phoenix PE4 HD-SDI card for latency? is it noticeable at all? I'm hoping to minimize, if not eliminate latency on my video input.

Thanks!

If this question has been answered in another thread I apologize.

decklink drivers are not optimised for latency - but for capturing to disk with no dropped frames-

i have no idea why the delays get so long- its outside of my control-

the phoenix card has around 2-3 frames of latency and is constant.