I feel like a lot of the detail in elite just doesn't pop out at you as it does in SC. This by the way, is not an attack on elite, quite the reverse. I mean I think Elite was always a gorgeous game, it just feels like the visuals in SC grab your attention more swiftly and easily.
When Elite hits retail and has undergone all those revisions though, it definitely will be pretty glorious.
At the moment, details in SC certainly pop out at you a lot more than in ED
Loading times for textures are horrific, meshes don't load all at once, there are lights that appear before surfaces, and they still haven't fixed any of the bounding box problems.
They have improved some of the textures now though - blockiness is much reduced so credit to them for that, although some details - especially instrument panels, are still badly pixelated.
It's not a HDD loading error, SC currently lives on a 16Gb RAMdrive so access and transfer times are essentially non-existent.