ASP.net memory consumption:

The .Net runtime uses the following segment sizes on 32 and 64 bit platforms for the .Net Runtime 2.0 and 4.0:

ASP.NET 2.0 x86 : 64 Mb for small object segment per processor and 32 Mb for large object segment per processor

ASP.NET 2.0 x64 : 512 Mb for small object segment per processor and 128 Mb for large object segment per processor

ASP.NET 4.0 x86 : 64 Mb for small object segment per processor and 32 Mb for large object segment per processor

ASP.NET 4.0 x64 : 1024 Mb for small object segment per processor and 256 Mb for large object segment per processor