Iver Hicarte :
I already saw this video, and this is a QUALITY comparison, not PERFORMANCE comparison.
Not really, at the very start of the vid he shows what the performance comparisons were, 3 FPS perf drop on ReLive, and 5 FPS drop on DxTory. Keep in mind that is using x264 encoding WHILE capturing in DxTory though. With RawCap it would probably be less than 3 FPS drop.
With capturing it's like this, you don't really learn more by mere bench comparisons vs hands on usage, which I already told you you can do with DxTory free before buying. As far as I recall the only limitation with the free trial version is audio recording is disabled.
There's just too many variables with how benching is done to make a holistic comparison. It has to do with settings used both in game and in the capture tool, hardware spec, what part of the game was recorded, etc. You'll get a much better idea of how it will compare by trying it yourself.
At this point, with your thinking benches are all you need to make a decision, I'm not even sure you'll be able to handle using DxTory. It has a higher learning curve than ReLive, which is another reason you need to try it first. That's not a dig btw, it was daunting for me at first, even though I'd had quite a bit of experience capturing with other tools.
That said, here's the best guide I know on how to use DxTory, including how to use RawCap Mode. It's the one I used after DLing the free trial version, and it gave me enough insight on how to use it and how well it performs that I ended up buying it. I'll also give you a link to their support forum.
[video="https://www.youtube.com/watch?v=W0KqsTa_HpM"][/video]
Support Forum:
http://forum.exkode.com/index.php?board=3.0