How difficult is GRE Math compares to these two past exams?

Question

I am wondering how difficult GRE Math Subject Exam is. I have tried the following two:

1. http://www.math.ucla.edu/~cmarshak/GRE2.pdf
2. http://www.math.ucla.edu/~cmarshak/GRE3.pdf

I am getting different claims. Some people say that these two tests are old and current test is way more difficult than them. Some people say that they are roughly the same. Any thought?

Answer 1

The current versions are significantly harder.

I would say that if you want to finish the current GRE in the $170$ minute time frame you need to be able to solve the ones from the $20$th century in about an hour.

Regards.