Hello Exiles,
I have a medium size base, and I plan to add source of light to illuminate it.
From your experience, what is the most FPS friendly source of light ?
Thank you!
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So far, RTX can handle it where GTX is limited and crawling. There is no set frequency for RTX mode, but 30, 60, and ~120 for compatibility.
Sorry ,I’m a bit confused . You talk about graphics cards?
Technically, yes. Because things are slowly changing where the effort to make lights work well under GTX modes can be easily answered with RTX modes. I’m saying this from a software perspective as much as possible.
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On Playstation we have found that the Khitan hanging lamps don’t seem to cause a problem and illuminate well.
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The RTX 3070 is equivalent to a PS5, hardware wise.
If you’re not seeing lots of lights with RTX, the limitation is indeed software. “Everybody” hasn’t switched over to RTX, of course, so I expect this to factor in to it.
You see, I’m not naming one by pointing out the backend to improve first. The hanging braziers (at an angle) work pretty well. I only needed 4 of them compared to a torch on every other wall.
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Dzonatas 
Thassarian the ones that glow. Torches and brazers have flame animations. Radium torches give you the most light per torch; they can also be dyed.
Doesn’t matter. Every pixel under RTX can be a light.
It’s not the light the effects FPS, for that there is a few graphics settings in game. The more flame animations you have the more it effects your GPUs ability to render the scene quickly.
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Under a GTX rasterization process, yes. With RTX, the scene can rez in O(1). It can’t be said that way for GTX. Because GTX requires variable amount of passes to render the scene. “Sprites” used to be a hardware only operation.

The radium wall torches do seem to be less graphically demanding when compared to the standard wall torch.
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Although you have a dev reply that overpass anything else. I will share my way of lighting my bases on official gaming.
I use the standard standing torch, not even the reinforced one. Just a few of them in some corners of my building are enough to give all the light i need in my base and out of it. The best part is that they stay hidden behind my benches and they still illuminate the whole room.
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Personally I use witchfire. As I like my bases to not be lit up so much that I can see them from space, I tend to use no more than a dozen, even on big builds
Kilana
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Amunet performed some very extensive tests a couple years ago and debunks several misconceptions commonly floating around:
Performance tests show no difference between ‘animated flames’ and non animated radium lights. The exception seems to be the witchfire torch which seemed to be a little lighter on the client side FPS.
You can dye the radium lights to suit your need. Just need them darker toss gray on there, cimmerian blue is a nice one. Use any of the vivid colors for a bright color wash. yes I have played around with the radium lights a lot 
I try to keep my keep fps to minimum animated flames always costs me fps.