The reason I didn't mention any particular game was because I wanted to
get an answer that would apply to the majority if not most modern pc
games. I have an old Pentium 3 machine that I was thinking about
upgrading and using it as a second gaming machine. I already have a
computer that I use for gaming so that's why I don't want to spend a
lot of money upgrading the Pentium 3. I was just seeing if I could get
a little more life out of the older Pentium 3.
Well that's a little more useful, maybe... since Pentium 3
ranges from around 500MHz to 1.4GHz it's still a broard
stretch.
A few years back I did several tests of Celeron & P3 boxes
that were running a TNT2 video card (the original "high-end"
version of TNT2, not the neutered/budgetized version nVidia
released for years afterwards. With a Celeron 800 (which is
the rough equivalent of a P3 700 for gaming purposes), there
was a linear gaming performance increase by overclocking
that Celeron to 1.1GHz. It increased the FSB & memory
though, but even so, the performance increase was far more
than could be accounted for by those other factors.
Later I swapped in a GF2 video card. It was about 2X faster
than the TNT2 at newer games but not much faster at all (I
was surprised) at older games. Then I swapped in a GF3,
and in modern benchmarks of that era it was twice as fast as
the GF2 (roughly) BUT it was still too slow to play any
decent DX8 games.... but it did better at DX7 games too, so
while it didn't provide good value it did make older games
run better. The CPU was the bottleneck.
If I had upgraded the CPU, the TNT2 would've done a little
better. The GF2 would've been about as fast as the GF3 was
with the older/slower CPU. The GF3 finally ran DX8 games
ok. This was an upgrade to a 1.1GHz Tualatin, o'c to
1.5GHz. At that time, the CPU was still modern and the
video card was worth about $200 or more.
I've rambled on long enough, take what you will out of the
above. I do suggest that IF you buy a video card that you
get one that at least is "DX8" era, which is most of the
newest generation budget cards and many older ones (but not
something rehashed from a few years back, not something like
a Geforce 4 MX series. A Geforce 3 or 4 Ti series would be
a good value in an older card, and I mention them because
they might be less expensive if you can find a used one.
Then again there are sometimes rebates on modern budget
cards so it's close in price either way... your system will
not be able to get all the performance out of a DX8 or newer
card, but that's essentially the breaking point, DX8
hardware T&L support.
It's a mystery why you didn't just go ahead and list the
system specs... why does everyone try to make things harder?
If you had simply listed concisely what you had to begin
with and the budget then someone could've just given you an
answer, but instead I've written pages and still it's vague.
Please be forward with details next time, it's for
everyone's benefit.