All hyperparameters are the same, but something makes the images different

[Eterance]

TLDR: It seems that the performance of GPU, the architecture of GPU or even the resolution of the image affects the image content, but I'm not pretty sure.

Long story:

I did a little experiment to figure out how much the “horsepower” of the graphics card affects the speed of image generation. Here are my settings.

Model: NAI (animate-final-pruned, the 4G one)
Prompts: (((masterpiece))), (((best quality))), ((ultra-detailed)), (illustration), (detailed light), ((an extremely delicate and beautiful)), (beautiful detailed eyes), (sunlight), (angel), solo, young girls, dynamic angle, floating, bare_shoulders, looking_at_viewer ,wings, arms_up, halo, Floating white silk, (Holy Light), just like silver stars imploding we absorb the light of day, (((elegant)))
Negative prompts (dont mind some mistakes :P): owres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, username, blurry, missing fingers, bad hands, missing arms, large breasts
Sampler: Euler a, CFG scale: 7, Seed: 3528433752, Model hash: 925997e9, Clip skip: 2, ENSD: 31337
Steps: 75 (at 1024x1536), or 150 (at 768x1152 & 512x768)

GPUs: 1070ti from my PC (win10), and others from some Ubuntu cloud servers, including 3060, 3070, TITANXP, P40, 2080TI, A4000, A5000, 3090, V100, A40, A100

When testing, I found that sometimes the images varied, I mean, huge different.

512x768, No significant visible differences

768x1152, my poor 1070ti and 3060 (cloud) obviously generated something different

1024x1536

Besides, pictures of V100, A40 and A100 are as same as A5000 and 3090, 3070 got a total black pic when using --xfromers or --medvram flags, and "out of memory" when not using them, so I didn't show those results.

So, what cause this phenomenon? The difference in images seems to be correlated with the performance of the graphics card. Or just windows' fault?

[spikezz]

not owres but lowres

[Eterance]

This prompt was from someone else, and I was almost done experiments when I found this error😂

[Kallamamran]

not --xfromers but --xformers 😘

[Eterance]

Sorry for the spelling mistake😋