A
Alan T
If I am using 32 bit Vista Ultimate, is that means 4 GB RAM is not better
than 2 GB?
Is 4 GB RAM only perform better in 64 bit than 32 bit Vista?
than 2 GB?
Is 4 GB RAM only perform better in 64 bit than 32 bit Vista?
Rutetuti said:I'm curious why you wouldn't recommend 3Gb of RAM rather than only 2GB for
32 bit systems.
Is there a particular reason?
If I am using 32 bit Vista Ultimate, is that means 4 GB RAM is not better
than 2 GB?
Is 4 GB RAM only perform better in 64 bit than 32 bit Vista?
Dwarf said:Hi Rutetuti,
The reason that I recommend 2GB rather than 3GB in 32-bit systems is to do
with bandwidth. The bandwidth of a single stick of DDR PC3200 is 3200 Mb/sec
(single channel mode). In a dual channel configuration, this doubles to 6400
Mb/sec. This makes for a much more responsive system. This only works if the
memory is balanced - any inbalance (different module capacity, number of
slots occupied per channel) will cause the system to work in single channel
mode. Of course, if your system doesn't support dual channel memory you can
use 3GB of RAM.
Dwarf
Hi Alan,
A 32-bit version of Vista can only access a maximum of 3.7GB of physical
memory that it can access (the rest of the 4GB address space is taken up by
the minimum page file allocation, which should be left as 'System Managed').
For practical purposes, I would recommend a maximum physical RAM size of 2GB
for 32-bit versions. The 64-bit versions do not have this limitation, so if
you have this version you can access much more memory and can fill your
motherboard up to its total memory capacity.
Dwarf
- Show quoted text -
Ken Blake said:No, it doesn't necessarily mean that. Two points.
1. All 32-bit versions of Windows, even though they have a 4GB address
space, can only use *around* 3.1GB of RAM. That's because some of that
space is used by hardware and not available to the operating system
and applications. The amount you can use varies, depending on what
hardware you have installed, but is usually around 3.1GB. But I've
seen numbers as high as 3.7GB.
I get 3582MB of RAM with my 4GB 32-bit system. I have a 320MB graphics card
Vista 32 bit can see different amount of RAM depends on motherboard ?
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