From a paper point of view, both the exams are easier but there is a syllabus difference between them both.
For railway jobs, there is no English in the syllabus but there is English in SSC. In the mains paper, there is only Math and English in SSC but there is GK in Railway.
Now the same paper can be tough for different persons depending on how much is he comfortable with the syllabus of the exam.
Talking about SSC and Railway, a Person who is more comfortable in Maths and English will find SSC an easy target, but the person who is more comfortable in GK/GS will find Railway an easy target.
