Hi Trainut,
I read with interest your concerns about buying an iMac not knowing whether Trainz would perform well on it. I went through the same anguish a year ago. I was fortunate to get a chance to try Trainz 2009 on the current Intel iMac before I bought it. It worked well, I bought and have been using it since almost exclusively for Trainz. I already own an iMac G5, but of course it doesn’t have the Intel chip and therefore cannot run as a PC.
I have since upgraded to Trainz 2010 SP 3 (version 42203) and all is running well. I previously used Trainz 2009 on an older Hewlett-Packard PC. It is running much better (faster) on the iMac. I have no way of comparing, but it is hard to imaging that it could run any better.
My Intel iMac configuration is:
Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Dual
Processor Speed: 2.93 GHz
Chipset Model: NVIDIA GeForce GT 130
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512
(I don’t know how important it is to mention some of this data. I just put in the same specs as amigocooke did in this blog.)
Software: Windows XP SP3 running in Bootcamp.
I did have some issues initially with video card drivers. It turned out to be important that I have the latest drivers. I ran Uniblue’s PowerSuite to make sure my drivers were up-to-date. I have no problems with temperature, even after I have run for hours.
It would be nice if you could try Trainz out on the computer you are interested in purchasing before you purchase it as I did. Failing that, I would tend to agree with the consensus that the new iMac can run Trainz if you get the 512 VRAM.
Of course, like me, you will always wonder if Auran might upgrade their program (Trainz 2011 etc.) and it turns out not be compatible with the Mac. Auran does not (yet) support the Mac. Perhaps, if the Mac users group grows and from this blog there seem to be a number of us out there, they will reconsider.
Cayden