I think accepted wisdom is you do not need anything special or fancy for a graphics card.
Many (most) are geared towards the gaming fraternity whose needs are rather more specialised than ours.
Mine is a cheap, generic thing I don't even know what it is, but it works, and it's fanless (major criteria)
Also, there are much better limiters than Boost 11 available, do you own the Concrete Limiter? If not it might well pay to grab hold of it - keep an eye open for any deals/offers that Cake sometimes announce.
There are also 2 bundled Blue Tubes limiters - the BW2S-3 and the LM2S-3