Acceptable mysql select speed as per documentation?

Is there an acceptable speed as in this many records per second for MySQL SELECT? I know it depends on how complex the query is and my machine spec. But can I have a vague/approximate speed estimation of a standard SELECT query? May be for something like this:

SELECT a, b, c, d, e, f FROM my_table;
 

I use .NET connector to access MySQL; from my code I do something like this:

MySqlCommand cmd = new MySqlCommand(query, _conn);
 MySqlDataReader r = cmd.ExecuteReader();
 
 List<int> lst = new List<int>();
 while (r.Read())
 {
     lst.Add(.....
 }
 
 r.Close();
 

Currently I can SELECT 25000 records under 150 ms. But when I run it under phpmyadmin it takes about 75 ms. From MySQL console it neeed 110 ms. Is there a need not be worried about limit that documentation recommends be it via connector, console or anything? I am running on an Intel Core2 Duo (2 GHz) with 2 Gb RAM. Speed is critical for my need.

I remember reading one such somewhere..

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