1st comparison:
64 sec PMG5, 2,3Ghz DP, 3,5GB RAM, Leopard, 7200rpm scratch, Radeon 9600 (CS2)
31 sec Q8200, 2,33 Ghz, 4 GB RAM, WinXP, 7200rpm scrarch, Radeon HD 3870 (CS4)
Funny - considering that the specs are in many ways comparable (and that the GPU should not matter) it's as if every core/processor would have as much punch...
2nd comparison (MacBook UNI(Al), 2,4 Ghz with CS4):
UPDATE (24.1.10): While "beefing up" my newest "toy" (bigger, faster HD, more RAM) i decided to log how much the test is influenced.
Due to possible measuring inconsistencies all test were run 5 times. Below are the averages.
1min45sec 2GB RAM, 250GB@5400rpm(original Toshiba)
1min42sec 2GB RAM, 500GB@7200rpm(Seagate momentus 7200.4)
46sec 4GB RAM, 500GB@7200rpm
44sec 4GB RAM, Intel X25-M G2 SSD
- Now I admit I did not expect any major performance increase thru the hard drive update in this test as I can't see it being HD-intensive, so those results are on par with expectations. Hard drive was updated first because after RAM increase HD significance would presumably have declined further.
- I did expect a significant improvement in the RAM extension - even so, the results absolutely blew me away. I had expected it to shave off at best some fifteen-twenty seconds - but to more than halve the time needed seemed so clearly preposterous that I had to redo that last test ten times (with fairly consistent results) before I had the courage to post them. (and yes, I did restart between tests). I'd welcome your views as to why the performance increase is so big... The only difference significant enough to be spotted with the bare eye is that the gaussian blur-phase took ages with 2 gigs, whereas the machine practically wheezed through it at 4 gigs... go figure.
EDIT: Later changed the 7200rpm for an SSD, again, a marginal improvement, which very much belittles the all-round "snappiness" improvement the SSD brought. As I noted in another (later) post, this benchmark is primarily processor and memory-critical, and does thus not give an all-round view of normal-usage Photoshop performance.
Pekka
P.S. First post...since extended a few times.