It can happen Bigchief.

I have an aging 3100 Processor, an MSI 3800 512, and only 512 DDR2 Dual slot memory currently allocated. (Space for one more). My machine will probably depreciate as fast as last years Playstation, but as far as i can remember it runs perfectly okay, with only minor jumps when i speed up the game's processes manually.

Ie; 'I work too fast.'

I run optimally at
1024 -768, at maximum graphics settings.
Yes i get the occasional jump, but nothing major. Your specs are way ahead of myne friend, you should really expect older games to jump, obvioulsly game engines and more importantly SHADERS, forced to operate on higher end equipment will of course bear some form of detriment, in much the same way as newer games or software on Older equipment.
You will at some point or other during play exprience lag or frameratehits. I'm sure most people do. Scene Making is the major hit on my machine.

On another Note; formatting posts, (I too have noticed), seems to be a function no longer available. : - P

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'Karate is like trying to light a fire with wet matches. With a few attempts you may get the odd spark, but if your patient enough, you will get a fire that lasts forever.'

Sensei Taiji Kase