Question of the Day - Which is Better? in Mesh Posted January 14, 2016 I seriously don't think you (or any others apparently) are asking a very relevant question. The server load of either is minimal. All the server has to do as far as I know is pass on the data to the viewer and both types of boxes only cost a couple of kB. But what really makes the question irrelevant is this: full LoDs on a box? A mesh box doesn't need any LoD models, you use 6x4=24 verts and 6x2=12 tris, that's a lot less than the 54 verts and 108 tris (off the top off my head) prim box has on the highest LoD. So replacing a prim box with an identical mesh box would be wasting geometry, quite a lot as you can see. But to answer the question....just build yourself a mesh box, upload it to SL and see what the server cost is. It's 0.5 I bet That without a doubt means LL thinks the differences between the two are so small, the boxes are of equal load. Overhead will determine the weight, not the actual object. If you still want a definitive answer, I'm sorry I can't provide that. Only someone who knows the ins and outs of the SL code and server hard- and software can answer this one.