
The second one is built from several pieces which you then plug one into another and the connections are at 90 degrees. Any how this one gave me a lot of troubles, windows would often report a problem with GPU connected using this cable so Octane wouldn't use this card so my advice is not to buy cables with such design. I got somewhat better results by raising GPU voltage but sooner or later it would fail again.
The first one is straight and in one piece. Since I replaced the bad cable with this one I didn't have any problems.