Question about GTX 1650

[Vartiala]

On the Adobe site https://helpx.adobe.com/premiere-elements/using/gpu-acceleration.html I found a list of graphics cards for PRE2022 and earlier versions including the NVIDIA GeForce GTX 1650.
I work with PRE 2020 on a Windows 10 (64) PC , with Intel I7 3770K @ 3.5 GHz, 4 cores and with 16 Gb of memory.
After exchanging my old graphics card AMD HD5700 series, memory 1 Gb (not supported by PRE2020) by an NVIDIA GeForce GTX 1650, 4 Gb memory, I had the same media clip of approx. 2.7 Gb re-exported in 4K quality (original also in 4K quality) with the same settings as when using the old video card.
However, I don't see a notification under Preferences-> General or Project Settings-> General in PRE 2020 that it's now applying hardware acceleration or using my GPU intensively.
While exporting the clip, the CPU is still under almost 100% load for 15 minutes for this 3.5-minute clip. The NVIDIA GeForce GTX 1650 was only used for about 7% during export (info Task Manager Performance_GPU).

When I cut part of the clip on the timeline and I start playing the clip again, the image is choppy. The CPU load is high. If I pause playback until the CPU load has become (after about 10 seconds) low and then play the clip again, the clip plays smoothly again.

I assumed that a card supported by PRE2020 would provide a noticeable improvement in the use of this video editor. Or do I still need to change a setting somewhere?

Title edited by Moderator... the letter N is not a good title

[Bill Sprague]

Check in Edit > Preferences > General.  There is a GPU on/off check box.   It is the only one.  Even with a GPU enabled, performance improvements, although noticeable, will not be spectacular.    

[John T Smith]

Is your card in the "allowed" list?

Adding card to the "allowed" list... adjust names for YOUR card and PrEl version
https://community.adobe.com/t5/premiere-elements-discussions/tarjeta-incompatible-para-adobe-premier...

[Vartiala]

Thank you Moderator to correct  the title. I saw that N in the subject but did not find how to edit the message.

All this is become a bit clear to me. The discussion behind the link John mentioned was about a map in C:\ProgramData\Adobe\Premiere Elements\21.0\Online\Hw Acc Render\All_Lang\HW\Files
This map with files does not exist in my PrE version 2020.
So today I downloaded and started the 2023 trial version and yes I now found C:\ProgramData\Adobe\Premiere Elements\21.0\Online\Hw Acc Render\All_Lang\HW\Files with the (empty) txt-file allowlisted_cards.txt. After opening the "Edit-Preference-General" window: "Graphic Processor detected: (NVIDIA)NVIDIA Geforce GTX 1650 and the detected GPU is supported". However I can not yet test if the card is used now because the 2023 trial version does not allow that. I suppose that this GPU acceleration will work after I have purchased this version. Then I hpoe to see some performance improvement.

Another GPU issue is still current when PRE 2023 (and also in PRE2020) is exporting a clip with H.264 encoding with "Export and Share-Device-Computer-Adapted-4K Ultra HD -Avanced settings-Encoding settings" (
excuse me for the wrong translation of items of my Dutch version of PRE2023). In that "Exportsetting"-window I see that the setting "Performance: Software encoding" is greyed out. The "mouse over" content shows "Hardware encryption is not available. Make sure that the system meets the minimum hardware and operating system requirements for this feature". I have no idea which hardware-/software component is responsible to get this feature working.
Is it a special version of an Intel CPU? This is because I am planning to replace my motherboard and CPU.
And more about encoding: I could also read on the "Projectsettings-General" window below "Mercury Playback Engine-software only". When I can select for Hardware encoding then I hope a further performance improvement.