I used to play GT5 on a PS3 Slim 320 GB model but it died so I recently bought a PS3 Super Slim 500 GB. The thing is that I have had nothing but problems with GT5 on this new system. Loading times are at least 3 times slower on my new Super Slim and everything but the actual gameplay seems to lag. I have performed a system restore but nothing seems to help. Anyone else having similar issues with GT5 on the Super Slim?
I ran into the same thing, I noticed my super slim seemed very slow when I got it. So I did a bunch of testing, comparing it to a regular slim. The short answer is, I changed the hard drive to one of these and it ran much faster than a slim with its standard drive it came with from sony, and in fact ran just as fast as a slim with an SSD. This is the drive I used (7200 Rpm):
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136278
For all my super slim vs slim testing, for both systems I had:
Same game game save (large 4mB save)
Both off line
Both on same 4.31 FM and 2.09 version of GT5
Both running original GT5 disk
Both had all game data pre-installed (so 9+ GB GT5 game data on Hard disk)
Both hard disks/PS3s had no other games installed
Things I compared between the 2 systems side by side were game startup time, std car garage load (800+ cars), and nurb track load time. With the super slim using its original 250mb drive, or a 60gig seagate from a FAT PS3, or a 160 gig toshiba from a slim PS3 (all original sony drives) the super slim was always quite a bit slower than a standard slim. Game start up was always something like ~15 seconds slower. At one point I even swapped the drives between the slim and super slim and it seemed to make no change, super slim still much slower.
The thing that made a huge change was changing the slim to the above listed western digital 7200RPM drive, it must have a much faster seek time since GT5 tends to use many many small files and seek time becomes very important. Maybe the 16mb cache is helpful here also. With this 7200rpm drive it then became much faster than the slim, and in fact it ran as fast as another slim I have that has an SSD. The 2 machines literally seemed to do everything identically, I was not expecting that at all. For the final test, I put an SSD in the super slim and it still seemed identical to my slim with an SSD.
So moral of the story, super slim running one of the typical PS3 5400rpm drives is slower than a slim on the same drive, not sure why when it seems to match a slim when both are on a faster drive. This would not be the case if it was a difference in blu-ray reading speed or something.