form said:
I agree with gaffa, based on personal experience, not limited to the next example:
I almost stopped reading, right there, since gaffa's argument was pretty ridiculous, but I'll give you the benefit of the doubt.
Turns out this was a 1.8 ghz g5. On the screen of that 1.8ghz g5, they were looping that really stupid commercial where the guy gets blown out of his house, and they follow the holes in the walls to the source - a g5 - well, I couldn't help noticing that, at 320x240, that movie just kept skipping frames like nuts on their 1.8 g5. Is it supposed to do that? I hope that it's only a compusa thing, that somehow they install stuff on the computer that makes it function poorly...I checked a few other things. Opens a little faster than my 400mhz g3, yes...didn't have photoshop there, though, or any games...so my experimenting time was limited mostly to attempting to get the frame skipping to stop, by adjusting the movie size, checking parameters, turning off loop, and so on...no luck. Anyway.
A few things to consider:
1) In early autumn, there would have been no dual 1.8ghz G5s. The G5 truly shines in the dual system, and the single processors are faster than G4s, but not blazingly so. As such, you were likely using 512MB RAM, a single 1.8ghz, and a Geforce FX 5200. That's not an incredible leap over the G4 towers in terms of the UI, but still an improvement. What you'd have seen the most improvement in was disk tasks, I/O, and purely processor-intensive processes.
2) Someone could have done something to the machine, the RAM might have been eaten up (my machine has 512 MB, and I tend to operate around 280-300MB actively used when I've been up for a while and doing things, because of the caching that OS X does), or there could have been a fault.
3) The G5s I've used haven't had this problem, and were smooth as silk. That probably doesn't count for much, but it's true.
And I also realized recently that, even if I got a new g5, I'd have to get Maya as well, for 3d, because Lightwave currently has major issues with X.3, issues which make it unusable. Isn't that funny, having such a strong selling point, one they even pushed on their website at one time, now not work usably on their latest and greatest?
🙄
Right, so it's
Apple's fault that a third party didn't optimize properly, when all kinds of workshops were given at WWDC (and afterwards) on how to optimize for the new processors... Please.
Upon browsing, within 30 minutes of this post, through their power mac hardware area, I noticed that they aren't advertising any 3d apps anymore as highlights for the mac platform...can't imagine why.
FinalCut Pro plays 7 streams in real time
Photoshop CS filter tests show G5 leads
Bibble format decode shows G5 lead
Logic allows over 135 plugins simultaneously on G5
I don't see Lightwave, Maya, or Renderman on the list anymore, and I concede that... However, I can throw out a single explanation that may or may not be true (I'm not a graphics professional, so I'm just guessing here)... On consumer grade cards, PCs can use DirectX calls to access the graphics cards, but we can't, and I've been reading a couple of stories about how some companies want to try to code things to take more advantage of GPUs for general computing.
Also, as most people will readily agree, the PowerPC has traditionally been a better performer in vector and floating point. I don't know for certain if the integer performance of the x86 world would play much of a factor, but that huge cache on the P4EE probably would.