Entity Memory Usage Problem

public SampleClass
{
    public int SampleID
    public int Sample1
    public int Sample2
    .
    .
    .
    public int Samplen

    public string SampleString1
    public string SampleString2
    .
    .
    .
    public string SampleStringn


}

List<sampleclass> sampleList=(from q in context.SampleTable select new SampleClass{SampleID=q.Sample1,Sample1=q.Sample2}).ToList();

List<sampleclass> sampleList=(from q in context.SampleTable select new SampleClass{SampleID=q.Sample1,Sample1=q.Sample2,...,Samplen=q.Samplen,SampleString1=q.SampleString1,...,SampleStringn}).ToList();