I should add that things like rotating the canvas and screen redraws are zippy. No problem there.
try upping the cache….that worked for me.
as I said in my original post, playing with the cache levels makes no difference. Can you create a 900 dpi grayscale file 7×10 inches, just create say 10 extra layers and see if you can replicate this problem? Do the same thing with cs3 and see if it’s the same delay. If any.
ooops…Sorry about that Dennis.
Just created a similar image to yours and it’s pretty snappy – no delays here.
How much RAM have you installed? How much is allocated to CS4.
My System has 16gb ( cs4 set at 80% – Cache at 8 )so it may not be a realistic comparison. But, I did have a laggy undo / layer creation / menu when I first installed CS4, which was really annoying – a few tweaks in the prefs fixed it.
Maybe, just keep on tweaking………upping the cache totally fixed the issues…..but, again, not very helpful as you’ve already tried the cache.
Not at all. First off, thanks for your help.
Okay, maybe you can help me make sense of this:
I ramped up the cache levels to 8. MUCH faster. Still not quite as fast as CS3 but a big improvement.
Even a little faster with hardware acceleration turned off.
I have 12 gbs of ram, with 8 dedicated to photoshop.
Do you think this means Id benefit from a faster video card?
Anyone reporting problems with Nvidia / Dell DUAL CARDS: Dual nVidia GeForce GTX 280 1024MB
On Vista . . .
Did not see the card on the list of Adobe tested video cards.
Not sure Dennis. I have an nVidia 8800GTS 640mb which is nearly two years old and that runs CS4 very well. 8gb should be good in photoshop. Unfortunately there are so many variables that will impact on performance – Each system has, on the whole, it’s own unique combination of hardware and driver version which makes troubleshooting a royal pain in the *you know what!*……however if your rotate and redraw is running fine the issue is probably little to do with the graphics card.
When I started using CS3 and large images I noticed massive lag issues, particularly with the brush rendering, over the past two years I have streamlined and optimised my system ( 5 main hard drives – 1: system 2: programs and general stuff 3: Large Format Files 4: PS scratch disk 5: Back up + System page file – the rest are secondary back ups and back ups of the back ups ( you can never have too many ) ) also it’s fairly clean with very little internet access – I just go online to download updates and activate software – this means there’s little risk of those nasties getting in and slowing things down….Oh and masses of RAM really helped ( but you have that!! )…..However, if you are using reasonable sized files you shouldn’t really have performance issues….
I take it you’re running Vista within the Mac O/S – that might take a performance hit. But I know nothing about Macs, except the apple mouse doesn’t have a right click :)…
Anyone have good / bad opengl experience working with dual card nVidia GeForce GTX 280 1024MB on any system . . . particularly Dell?
Best,
K.