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I disabled the "Radial Blur" filter since it always resulted in an out of memory error with larger images.Filesize (108.3MB and 192.6MB image tests vs 50MB).This makes it easier to run (less work involved), although timing has to be done by stopwatch.
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OWC's version of the action runs all filters in series, without any file saves/restores.
#POWER MAC G5 CONVERSION KIT SERIES#
Rather than use PSBench's script (which repeats each of the 21 filter/actions 3 times, restoring the image each time), I used a similar series of filters/actions in OWC's benchmark script (also 21 filters/actions). there's slightly less "available" RAM shown in PShop's Memory Usage preference panel when 8GB of RAM is installed than when 4GB is installed for instance.) (In fact, due I suspect to the OS using larger caches, etc. (This is also true of Photoshop CS according to a contact at Adobe.) And even set to 100% memory usage, that's 100% of "available" RAM, which Photoshop thinks is less than 2GB even when there is 4GB or 8GB of RAM installed. (Some didn't believe that this setting was functional in OS X - but it is.) The downside to Photoshop is that it can't use or recognize more than 2GB of installed RAM.
#POWER MAC G5 CONVERSION KIT PRO#
I used Photoshop 7.0.1 as the primary test app because a) it's a very popular pro app and b) the adjustable 'memory usage' preference allowed testing with various memory settings. (Note: these are 16 chip dimms, not 32 chip.) (See test results below, including multitasking tests with encoding video in the background.) Depending on the amount of RAM you have installed - adding RAM can more than double performance for apps like Photoshop. With 8GB installed, running literally every app I had installed didn't show any pageouts. (The difference in price was almost enough to pay for the Dual G5.) Granted most of us can't justify 8GB of RAM, but I have to say returning these is one of the hardest things I've done this year. That was $2300+ more than the cost of the eight 1GB OWC dimms I used for these tests. 2003) to the base price in 2003 of a $2999 Dual G5 2GHz. (The G5 motherboard is a Dual channel memory design, so dimms must be added in like pairs.) 1GB PC3200 dimms (in fall 2003) were not cheap and although I knew Apple's BTO RAM prices have always been higher than most any other source, I was floored to see that the Apple store cost for 8GB of RAM (over the base 512MB) added $4950 ( Nov. OWC was kind enough to loan me 4 pairs of their 1GB PC3200 Dimms for the PowerMac G5 for testing. Note the 1GB dimms no longer have the heatsinks shown in the photos from 2003 below, but my G5 has been running for years with PC3200 dimms w/o heatsinks.) For current sponsor prices, check their memory guides for current pricing. ( Note: This article was published in 2003 when PC3200 memory was much higher priced. 12th, 2003 for Photoshop CS vs 7.0.1 tests) Mac Upgrades/Repairs/Mods | Storage Related | Video Related | Audio/Home Theater Related | OS Updates/Tips/Wi-Fi Related Photoshop Performance tests with 512MB to 8GB of RAM in PowerMac G5