Hi William,
I own both a 6 core 3.33, and a 12 core 3.46. Correct in that you don't gain much in terms of photoshop beyond six cores. In fact, when running the Digilloyd Huge Test, with the same ram, and scratch disk set up, the 12 core is slower in photoshop. I can dig up my test results if anybody is interested. The 12 core, of course has more ram slots, all the way up to 128. But with both at 32 GB ram the 6 core is faster. Predictably, my 12 core is more than twice as fast than my 6 core with my CPU based CGI render software.
I'd be interested in the benchmarks if you have them handy. I wonder if this test is memory latency sensitive which might explain a decrease in performance due to multiple CPU's.
Hi pl1984,
Here is a link to the Photoshop testing script I’ve been using.
https://macperformanceguide.com/OptimizingPhotoshopCS6-Benchmarks.html
My results are as follows:
2012 12 Core 3.46 = 146.75 seconds
2010 6 core 3.33 = 134.0 seconds
Yup. My 12 core is a skosh slower in Photoshop than my 6 Core. However, the 12 core is more than twice a fast in my CGI app, so a very good trade off for me.
1. When I got my 12 core, I transferred the SSD boot, and my HDD internal RAID array over from the 6 core. Same 32 GB ram. Fairly even grounds for comparison.
However, I’m left wondering how the comparison will change on this test, if I ever load the 12 core up to the
max 128 Ram.
2. Test Procedure : I run the “DigiLLoyd Huge” file test
4 times in a row, the results are then averaged together. Running the test 2 times will probably create a quicker test score average, because (if you have PS set to recall a lot of history states) you will access scratch disk at some point, and that really slows things down. I have my history at 100, because that’s my real world set up. At 4 iterations and 32GB ram, I’m testing scratch disk performance quite a bit here.
3. Photoshop Prefs : will have a big effect on this test. Here’s my prefs:
- History states =100. Don't create first snapshot automatically.
- Cache levels = 8
- Cache Tile size 1024k
- Scratch Disk 1 = PCIE SSD Boot
- Scratch Disk 2 = Raid 5 Slice Of 8TB
- Scratch Disk 3 = Raid 5 Slice Of 4TB
- Let photoshop use 89% of RAM
- Use Graphics Processor (ATI 5770)
4. Having worked in Photoshop 30-40 hours a week since the days when a Photoshop was installed via 7 floppy disks, gonna say this issue boils down to 4 essentials: Clock speed, Ram, Scratch, and History States. If you are falling asleep saving or opening big files, you need to look at drive read/write speed as well.
Hope this is helpful