Hello everybody,
I think this is a topic for specialists, and I thought I will find some on this forum!
First, I'm a photographer, not a computer addict I use LR for several years and I was really happy with it till... LR6 (CC) as it gets really slow.
Some more informations : I try to import only best pictures to keep a light library (something like 5000 pics), I use 1:1 previews, use correct cache memory etc...
I wasted a LOT of time with Adobe, Apple and my computer scientist to try to solve that it is still too slow to be used.
After many tries to solve it on my computer, Adobe finally established that it is a computer problem, mainly because of the weakness of the GPU (64 MB).
OK, let it be! after trying many other solutions, I finally decided to invest in a new computer... I called Adobe to know what to put "inside" and follow their advices :
I bought a brand new IMAC, core i5, 3,3 ghz (boost 4,00 ghz), 8 GB RAM, 4 GB GPU AMD Radeon R9, fusion drive (SSD + HDD), screen 5k. $$$$ but wonderful! working very well with other programs and I was sure it will run MUCH faster with LR!
My previous computer was a 4 years old PC laptop, core i5, 2,6 ghz, 8 GB RAM, 64 Mb GPU, no SSD, external HDD, external HD screen.
Both are running in 64 bits.
LR launch very quickly (5,5 sec vs 14 sec on the PC), great! I imported some pictures and.... it is slowwww, so slowww, exactly 3 times slower than on the PC...
Which means that it is completely unusable (eg : 45 sec to change the T° from 7400 to 7300 K (on a picture which have only 5 local brushes, 2 radial filters, 2 graduated filters, no local corrections, no lens corrections).
I can't believe that the program is such limited, no professional photographer has any chance to work on it! Anyway, it is nothing logical (to me... ) that the new iMac is slower.
Some tests on the same photo:
Changing the T° from 7400 K to 50000 K :
- with the lowest resolution (1600x900):1'05"
- with the highest one (3200x1600) :15"
- hightest resolution with GPU enabled : colors changed quickly, but the pictures get clear only after 25'
The result is exactly the opposite on "virgin" pictures (no post-treatment) : changes are clearly more fluid with the lowest resolution.
I did these tests several times to be sure and result are always the same.
So here are my questions :
- How can it be that a new Mac with good devices inside (with runs very well with other programs) is slower than an old PC laptop with weaker devices??
- The process is still slower with the GPU enabled, so why Adobe advised to invest in a good GPU which is supposed to improve speed?
Something must be wrong, but WHAT??
Hope everybody understood my poor english and thanks in advance for your help!!
Didier
I think this is a topic for specialists, and I thought I will find some on this forum!
First, I'm a photographer, not a computer addict I use LR for several years and I was really happy with it till... LR6 (CC) as it gets really slow.
Some more informations : I try to import only best pictures to keep a light library (something like 5000 pics), I use 1:1 previews, use correct cache memory etc...
I wasted a LOT of time with Adobe, Apple and my computer scientist to try to solve that it is still too slow to be used.
After many tries to solve it on my computer, Adobe finally established that it is a computer problem, mainly because of the weakness of the GPU (64 MB).
OK, let it be! after trying many other solutions, I finally decided to invest in a new computer... I called Adobe to know what to put "inside" and follow their advices :
I bought a brand new IMAC, core i5, 3,3 ghz (boost 4,00 ghz), 8 GB RAM, 4 GB GPU AMD Radeon R9, fusion drive (SSD + HDD), screen 5k. $$$$ but wonderful! working very well with other programs and I was sure it will run MUCH faster with LR!
My previous computer was a 4 years old PC laptop, core i5, 2,6 ghz, 8 GB RAM, 64 Mb GPU, no SSD, external HDD, external HD screen.
Both are running in 64 bits.
LR launch very quickly (5,5 sec vs 14 sec on the PC), great! I imported some pictures and.... it is slowwww, so slowww, exactly 3 times slower than on the PC...
Which means that it is completely unusable (eg : 45 sec to change the T° from 7400 to 7300 K (on a picture which have only 5 local brushes, 2 radial filters, 2 graduated filters, no local corrections, no lens corrections).
I can't believe that the program is such limited, no professional photographer has any chance to work on it! Anyway, it is nothing logical (to me... ) that the new iMac is slower.
Some tests on the same photo:
Changing the T° from 7400 K to 50000 K :
- with the lowest resolution (1600x900):1'05"
- with the highest one (3200x1600) :15"
- hightest resolution with GPU enabled : colors changed quickly, but the pictures get clear only after 25'
The result is exactly the opposite on "virgin" pictures (no post-treatment) : changes are clearly more fluid with the lowest resolution.
I did these tests several times to be sure and result are always the same.
So here are my questions :
- How can it be that a new Mac with good devices inside (with runs very well with other programs) is slower than an old PC laptop with weaker devices??
- The process is still slower with the GPU enabled, so why Adobe advised to invest in a good GPU which is supposed to improve speed?
Something must be wrong, but WHAT??
Hope everybody understood my poor english and thanks in advance for your help!!
Didier