Take the 2-minute tour ×  Does having 4 Gigabyte Tuning enabled
cause a performance hit?  share|improve this question  closed as
not a real question by Chris S, Bart De Vos, rnxrx, Ward, EEAA
Aug 24 '12 at 3:57   Do you mean does it decrease performance?
–  ErnieTheGeek Jul 14 '11 at 14:33 I am talking in the context
of a server that hosts a bunch of web services. So like an
increase in response time. –  Reflux Jul 14 '11 at 14:59  1
Answer 1  up vote 2 down vote accepted  If you have 32-bit apps
that could use more than 2GB of virtual memory (4GT increases it
to 3GB) then yes, you might benefit from enabling it. If your
apps are network or IO heavy however, the memory available to
those operation will be reduced and you may experience degraded
performance. It really depends on the situation and the apps
you're running. Experimenting may be the best way to find out.
Microsoft's article on 3GT explains in more detail.
share|improve this answer