Question is as above, which dies faster? (in terms of life span) blinking led or continuous led? If same led light was being used. (these are low powered red+green=orange led meant to show activeness of a computer without screen, which will have longer life is needed)

There doesn't seem to be any definitive answer to this question as far as a few minutes of surfing will tell...
What you will find out is that the L70 rating (time it takes for the LED light output to be reduced to 70%) is 50,000 to 100,000 hours. And after that, years...

So if there was a 10% difference between the life of an LED and one that was blinking, it would still have a life of 45,000 to 90,000 hours. The equipment the LED has been installed in will likely fail or be obsolete long before that.
Is there a reason why knowing the life span of an LED is critical?