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Apple Computing Products:
macOS - Desktop Hardware
Help please. Why is My Mac Pro so much slower than my old pc?
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<blockquote data-quote="cowasaki" data-source="post: 512890" data-attributes="member: 36098"><p>Photoshop when running full steam can use 3Gb of ram (maximum). The Mac pro comes with 1Gb. As I have explained a few times in the hardware section the speed of the Mac pro is significantly affected by not having the ram in double pairs. You have 4x512Mb which means that (so long as you have the ram in the correct slots) you are getting a boost of 10-15% JUST from having a bank of ram full plus the boost you get from having the extra ram. Now I wanted at least 3Gb for photoshop plus some for tiger. This would mean that 4Gb would be ideal but without wasting my 1Gb! So I bought 4x1Gb and then just bought 2x512Mb to make up two fours. I would have been happy with 4Gb but it would have been a waste leaving the original 1Gb in a box or slow leaving it in. It only cost £65 for the final 1Gb.</p><p></p><p>Anyway whilst photoshop is using the 3Gb and tiger, mail etc are using another Gig the final 2Gb are being used as a cache. I have a 250Gb drive in one of the bays used solely for a photoshop cache and that gets used too. It depends on what you are manipulating. If for example I was messing around with 6 HDR images and wrapping them around a couple of cubes whilst overlaying them over another HDR image I think even my memory config would struggle!</p><p></p><p>I cannot remember who it is but there is someone on here who has 32Gb in his pro (yes the pro can use 4Gb sticks even though Apples site does not mention this) I wander if he thinks that is enough!</p></blockquote><p></p>
[QUOTE="cowasaki, post: 512890, member: 36098"] Photoshop when running full steam can use 3Gb of ram (maximum). The Mac pro comes with 1Gb. As I have explained a few times in the hardware section the speed of the Mac pro is significantly affected by not having the ram in double pairs. You have 4x512Mb which means that (so long as you have the ram in the correct slots) you are getting a boost of 10-15% JUST from having a bank of ram full plus the boost you get from having the extra ram. Now I wanted at least 3Gb for photoshop plus some for tiger. This would mean that 4Gb would be ideal but without wasting my 1Gb! So I bought 4x1Gb and then just bought 2x512Mb to make up two fours. I would have been happy with 4Gb but it would have been a waste leaving the original 1Gb in a box or slow leaving it in. It only cost £65 for the final 1Gb. Anyway whilst photoshop is using the 3Gb and tiger, mail etc are using another Gig the final 2Gb are being used as a cache. I have a 250Gb drive in one of the bays used solely for a photoshop cache and that gets used too. It depends on what you are manipulating. If for example I was messing around with 6 HDR images and wrapping them around a couple of cubes whilst overlaying them over another HDR image I think even my memory config would struggle! I cannot remember who it is but there is someone on here who has 32Gb in his pro (yes the pro can use 4Gb sticks even though Apples site does not mention this) I wander if he thinks that is enough! [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Help please. Why is My Mac Pro so much slower than my old pc?
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