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Anonymous
December 8, 2016
解決済み

Photoshop How Much Ram We Need For Each Images Resolutions Maximum

  • December 8, 2016
  • 返信数 2.
  • 12439 ビュー

Hi everybody,

I ask this question to know exactly how much Ram Memory we need in our PC to Run big Images Size in Photoshop :

IF ADOBE TECHNICAL SUPPORT AND SOFTWARE DEVELLOPERS DID TESTS IN THE PAST, PLEASE HELP US AND SHARE MORE INFORMATIONS ABOUT THE POSSIBLES OF RAM NEED BY IMAGES SIZES (BY RANGE OF MEGAPIXELS AND GIGAPIXELS) THANKS !

Because when the time comes to shop a new computer with more Ram Memory possibilities and to Choose the Right Processor (Cpu), We Need more informations about Photoshop performance.  It's good to know the Minimal and Maximal requirements of the software, but for Real, in the middle of that,

What do We Really Need for Working our Big Size Images, Step by Step for reach the Maximum 300 000 x 300 000 (90 Gigapixels).

THIS QUESTION IS ALSO ABOUT TO KEEP A FLUID DRAWING AND PAINTAING EXPERIENCE IN PHOTOSHOP ONLY.

Yes, We Keep In Mind to Buy a SSD for Disk Drive Scratch Cache and a good Processor (Cpu) and other parts too, for customs needs...

What I mean when I say Big Size Images in Photoshop :

- Always 300 dpi (ppp, pixels by scare inch)

- Images Size 01 : Between 0 and 3 000 000 pixels = Recommended RAM memory : 8 to 16 GB  ?

- Images Size 02 : Between 3 000 000 and 6 000 000 pixels = Recommended RAM memory : 16 to 32 GB  ?

- Images Size 03 : Between 6 000 000 and 1 000 000 000 pixels (1 Gigapixels) = Recommended RAM memory : 32 to 64 GB ?

- Images Size 04 : Between 1 and 5 Gigapixels = Recommended RAM memory : 64 to 128 GB ?

- Images Size 05 : Between 5 and 20 Gigapixels = Recommended RAM memory : 128 to 256 GB ?

- Images Size 06 : Between 20 and 50 Gigapixels = Recommended RAM memory : 256 to 512 GB ?

- Images Size 07 : Between 50 and 90 Gigapixels = Recommanded RAM memory : 512 to 758 GB (Actual Ram Maximum) ?

What I wrote up there is a hypothetical approximation of the RAM Needs for Specific Images Sizes. 

If someone can confirm it or adjust this list with real performance results...

Everybody will Enjoy These informations for shopping their Best PC to work in a Fluid drawing Photoshop !

Thanks to everybody to read and contribute to find all answers. Have a Good Day !  : )

    このトピックへの返信は締め切られました。
    解決に役立った回答 JJMack

    davidl61394530 wrote:

    Hi everybody,

    I ask this question to know exactly how much Ram Memory we need in our PC to Run big Images Size in Photoshop :

    What do We Really Need for Working our Big Size Images, Step by Step for reach the Maximum 300 000 x 300 000 (90 Gigapixels).

    THIS QUESTION IS ALSO ABOUT TO KEEP A FLUID DRAWING AND PAINTAING EXPERIENCE IN PHOTOSHOP ONLY.

    Yes, We Keep In Mind to Buy a SSD for Disk Drive Scratch Cache and a good Processor (Cpu) and other parts too, for customs needs...

    IMO Photoshop was not designed to be a painting program.  If  you have a canvas 300,000px by 300,000px where you zoom out so your  whole  canvas is scaled to fits on your display. What is being displayed is your 30,000,000,000 image scale down to fit on your display. When you use a paint brush and stroke your canvas.   Photoshop design will scale your stroke up for your 30,000,000,000 px image. If it is a wet mixer brush Photoshop additionally need to retrieve the paint on the canvas and mix it with the paint being laid down and scale down the results to display to you.   IMO Photoshop with all the RAM in the world will not be able to keep up with your brush strokes practically when you use large complex sample brush tips wile low spacing. There just too much sequential processing that need to be done. Increasing the number of cores will not help when sequential processing is required either to render the stroke near real time..

    You would need to use a paint program that was design to work one a small canvas that will scale your painting up for output where the large output  image is being rendered as a background process while your painting on the it small scaled down size being rendered in real time.   I feel a painting application can only be FLUID DRAWING on a much smaller canvas size then one with 30,000,000,000px.  I'm not a painter.  I do not even know if there are Painting applications that can produce 30,000,000,000 pixel images. Uncompressed  a single layer image that size is 90,000,000,000 bytes 8bit color the number grows as you add layers.

    返信数 2

    JJMack
    Community Expert
    JJMackCommunity Expert
    Community Expert
    December 8, 2016

    On my Dell workstation I have 40GB of Ram.  If If push Photoshop and do some heavy lifting I can get Photoshop to eat up all my RAM and 100+GB of scratch space.   Normally I do not edit Huge canvas and have a great number of layers. Rarely do I see Photoshop use more than 10GB of Ram it uses a lot more scratch space.

    JJMack
    A
    Anonymous
    December 8, 2016

    Very Good to know that !!  : )  More Layers need enough SSD scratch disc space, I will keep in mind to Help ! Thanks.

    40 GB of RAM is Nice !  If you had time and you want to try these 4 quick tests : 

    ** IMPORTANT :

    If your pc lagging Too Hard during a test (more than 10 second by single brush tool action), you will had reach the limit.

    Don't try the next resolution, the objective is not to explode your PC :

    Step 01: Create one at the time, a new image with one of these canvas resolution of  : At 300 pixels by inch.

    Test 01 : 500 000 000 pixels (total) :  36 000 x 14 400 pixels  

    Test 02 : 850 000 000 pixels (total) : 36 000 x 24 000 pixels

    Test 03 : 1 000 000 000 (1 Gigapixel total) : 36 000 x 28 000 pixels

    Test 04 : 1 500 000 000 (1.5 Gigapixel total) : 40 000 x 38 000 pixels

    Step 02 : Use the paint bucket to make a color plain "Layer_01".

    Step 03 : Do the same thing on "Layer_02" with a other color.

    Step 04 : Use the Eraser Tool to put off color of "Layer_02" (brush 20 times just a little bit everywhere)

    Results Obtained : If Your RAM and other parts doing Good and enough Fast and you don't have lag, You can do the next test.

    * If this is not enough and you want to find the limits of your RAM and PC system :

    Add to resolution some inches more 3600 x 3600 pixels is 12 x 12 inches... with a calculator you can find a precise Image size...

    And Keep doing the same Step 02 to 04... The limit will came soon or later.

    Please Let Me Know your Results if you did the tests some day, I'm Curious to see how much 40 GB can handle approximately !!!

    Thanks JJMark !!

    JJMack
    Community Expert
    JJMackCommunity Expert
    Community Expert
    December 8, 2016

    Yeah, my test is not good, not really representative of the real work, not enough layers so too easy for PCs... forget that test...

    Thanks.


    I made one test after I made my last append.  Something I might actually. I populated a Photo collage. The Collage I populated was a 300dpi 16" 20" PSD.  I populate collages using Place  embedded which I size and mask the placed in smart object layer. The Collage template has 53 Image in the composure and I placed in 53  16MP image.  Each Raw file in around 20MB and Photoshop renders 16MPixels for each smart object layers  these are scaled to size via the smart object layer transform and shaped via Layer mask. And File name stamped on to images image layers and text layers have layer styles  It took some time for my script to populate the Collage Document.   Photoshop working set climbed fro around 2GB to 12GB and  20+GB of scratch space was used.  Photoshop Image status showed  the document required something like 1.3GB. My C: had close to 80 GB free before I started Photoshop.

    JJMack
    JJMack
    Community Expert
    JJMackCommunity Expert解決！
    Community Expert
    December 8, 2016

    davidl61394530 wrote:

    Hi everybody,

    I ask this question to know exactly how much Ram Memory we need in our PC to Run big Images Size in Photoshop :

    What do We Really Need for Working our Big Size Images, Step by Step for reach the Maximum 300 000 x 300 000 (90 Gigapixels).

    THIS QUESTION IS ALSO ABOUT TO KEEP A FLUID DRAWING AND PAINTAING EXPERIENCE IN PHOTOSHOP ONLY.

    Yes, We Keep In Mind to Buy a SSD for Disk Drive Scratch Cache and a good Processor (Cpu) and other parts too, for customs needs...

    IMO Photoshop was not designed to be a painting program.  If  you have a canvas 300,000px by 300,000px where you zoom out so your  whole  canvas is scaled to fits on your display. What is being displayed is your 30,000,000,000 image scale down to fit on your display. When you use a paint brush and stroke your canvas.   Photoshop design will scale your stroke up for your 30,000,000,000 px image. If it is a wet mixer brush Photoshop additionally need to retrieve the paint on the canvas and mix it with the paint being laid down and scale down the results to display to you.   IMO Photoshop with all the RAM in the world will not be able to keep up with your brush strokes practically when you use large complex sample brush tips wile low spacing. There just too much sequential processing that need to be done. Increasing the number of cores will not help when sequential processing is required either to render the stroke near real time..

    You would need to use a paint program that was design to work one a small canvas that will scale your painting up for output where the large output  image is being rendered as a background process while your painting on the it small scaled down size being rendered in real time.   I feel a painting application can only be FLUID DRAWING on a much smaller canvas size then one with 30,000,000,000px.  I'm not a painter.  I do not even know if there are Painting applications that can produce 30,000,000,000 pixel images. Uncompressed  a single layer image that size is 90,000,000,000 bytes 8bit color the number grows as you add layers.

    JJMack
    A
    Anonymous
    December 8, 2016

    Thanks JJMack,

    Yes, it's true, I agree to your point of view of the internal process of the software.

    But, The Question stay there... I try to find the RAM needs for particular Range of Images Size.

    All others PC parts are important, Yes, sure, but for this Question we can presume all the other parts is the best in the PC...

    If We are Doing Panorama by stitching manually photos, correcting, adjusting all layers to fit all together. It's a kind of painting too.

    During this Photoshop works the canvas is growing to frequently reach a big size image (Depending of the used Camera).  

    So, What Among of RAM memory are Needed to fit to each Images Size listed there, approximately :

    - Always 300 dpi (ppp, pixels by scare inch)

    - Images Size 01 : Between 0 and 3 000 000 pixels = Recommended RAM memory : 8 to 16 GB  ?

    - Images Size 02 : Between 3 000 000 and 6 000 000 pixels = Recommended RAM memory : 16 to 32 GB  ?

    - Images Size 03 : Between 6 000 000 and 1 000 000 000 pixels (1 Gigapixels) = Recommended RAM memory : 32 to 64 GB ?

    - Images Size 04 : Between 1 and 5 Gigapixels = Recommended RAM memory : 64 to 128 GB ?

    - Images Size 05 : Between 5 and 20 Gigapixels = Recommended RAM memory : 128 to 256 GB ?

    - Images Size 06 : Between 20 and 50 Gigapixels = Recommended RAM memory : 256 to 512 GB ?

    - Images Size 07 : Between 50 and 90 Gigapixels = Recommanded RAM memory : 512 to 758 GB (Actual Ram Maximum) ?

    Correct my suggestions of hypothetical "Recommended RAM memory" if you know the Real among of RAM needed to work with these Images Sizes...

    Thanks you !   : )

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