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Survey Results

When buying a new computer, how important are each of the following?

Survey period: 25 Jul 2022 to 1 Aug 2022

Obviously a dozen other things come into the equation, too, but let's keep the list manageable.
OptionResponses Avg  
Raw horse power7564.00
Enough RAM for what I need and more.7564.44
Disk storage. I need room7563.85
The GPUs are critical7563.15
AI processing power. TPUs, Neural engines, DLAs. I needs them.7562.18
It needs to run the OS of my choice7564.08



 
GeneralWe all know what it's about... Pin
Sander Rossel24-Jul-22 22:16
professionalSander Rossel24-Jul-22 22:16 
GeneralRe: We all know what it's about... Pin
dandy7225-Jul-22 12:45
dandy7225-Jul-22 12:45 
GeneralRe: We all know what it's about... Pin
Sander Rossel25-Jul-22 21:59
professionalSander Rossel25-Jul-22 21:59 
GeneralRe: We all know what it's about... Pin
dandy7226-Jul-22 3:51
dandy7226-Jul-22 3:51 
GeneralRe: We all know what it's about... Pin
Sander Rossel26-Jul-22 23:29
professionalSander Rossel26-Jul-22 23:29 
GeneralRe: We all know what it's about... Pin
trønderen27-Jul-22 5:52
trønderen27-Jul-22 5:52 
GeneralRe: We all know what it's about... Pin
dandy7227-Jul-22 8:14
dandy7227-Jul-22 8:14 
GeneralRe: We all know what it's about... Pin
trønderen27-Jul-22 12:07
trønderen27-Jul-22 12:07 
dandy72 wrote:
Does that make the 4K version X number of times more enjoyable?
But we are getting wasted. I was searching through some old home movies (completely unrelated to internet!) on my PC, and was surprised: I had a digital camera those days, didn't I? But this isn't digital quality ... I had to dig up the old DV tape from the basement: It was indeed digital. When I got my first DV camera, I thought is to be super sharp and high resolution. After a few years with a HD camera, that old 540 lines video looks almost as bad as VHS.

Personally, I think 480 line video is too low resolution: I keep wishing that it wasn't that grainy. Some of my favorite movies that I had on DVD, I have later bought in HD version. To enjoy a movie, the technical quality must be so good that I do not think of it constantly. With 640 by 480 resolution, I do think of it all the time.

Small nitpicking: When you refer to 480p video, that is 480 lines, usually of 640 points horizontally. 4K refers to the number of horizontal points; the number of lines is usually roughly 3K. (It can vary depending on the aspect ratio of the image.) So for comparing apples with apples, you should either compare 640 points to 4K points or 480 lines to 3K lines. Roughly speaking: 6 times linear improvement.

But then: You never transmit uncompressed video across the network (or store on your disk). I have recently been playing around with H.265 encoding, using HandBrake to generate standalone MP4 files from H.264 encoded BD disks. Even with H.265 files a third the size of the original BD, I find it hard to see any difference on the screen I use for movie watching. One small problem is that as of July 2022, support for H.265 is not universal. That will change.

The nature of the compression method is so that higher resolution does not cause a corresponding increase in compressed size. A significant part of the image changes in color or brightness approximately follow cosine curves, which are fundamental to the compression: You store parameters for that cosine curve, regardless of how many points it is represented with. Higher resolution could represent smaller deviations from the simple cosine curve than a low resolution, but these minor deviations doesn't take that much space extra to store.

Also, modern video compression recognizes parts of the image being repeated in the next frame. This doesn't multiply with resolution. If you double the image frequency, for a large part of the image, you just encode the repetition of (parts of) the previous image, with a shorter interval. The encoding of a repeated image part requires a tiny little fraction of the space required for the full image.

With proper video compression, high resolution (both geometrically and along the time axis) is fully reasonable on the internet.
GeneralRe: We all know what it's about... Pin
Dan Neely28-Jul-22 4:45
Dan Neely28-Jul-22 4:45 

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