• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

Pentium D 915

alex24

alex24

alex24

Soldato
Joined
1 Jan 2008
Posts
11,594
Just about to rebuild a machine with one of these.

I have a feeling 64-bit support was tagged on by Intel on these as a bit of a box-ticker.

Would performance be sufficiently better using a 32-bit OS over the 64-bit alternative (Windows 7) to warrant not using 64-bit for it's other advantages?
 
I think it depends on the CPUs instruction set, I can't recall fully (hence the thread) but I'm sure I remember reading that the Intel CPUs with this 'tagged on' rather than an architecture designed for it were worse performers. I think this CPU is a Presler if it makes any difference.
 
if memory serves right these cpus were the first to implement x64 instructions from intel and weren't great (compared to amd's offerings at the time), depends on how much memory you will install in the machine and what will it be its use imho
 
The memory is 2GB, so fine on 32-bit, but it may be upgraded at some point. Use is light office work and web browsing.

If it's fine on 64-bit I'll just go that way, but I don't want to be throwing any performance away on such a dated chip.
 
not entirely related, but i read a custom pc article a while ago, and the E2140 @1.6ghz performed identically to the pentium D 820 @2.8. I bet you could get an E2140 for peanuts now and i would guess the 64 bit part is "baked in" better.
 
Being the technical term of course. :p

I think you're right, but I'm building it today...

Might just do 32-bit if nobody really knows.
 
They perform just as well (or badly) under 64bit as they do under 32bit, the Intel 64bit instructions were fine from their first introduction.
Of course the chip itself is pretty slow in 32 or 64 bit but still OK.

Only real advantage to 64bit is if you think the machine will eventually have 4GB RAM installed.

Only compelling reason for 32bit install is if any of the computer's cards or peripherals (ie tv card, printer etc) lack 64 bit drivers.

I imagine either will be fine.
 
I agree, and I think you're probably right about performance as I went for 64 in the end and it's just as slow as it was before!
 
You must log in or register to reply here.
Back
Top Bottom