Not sure what you mean by 570 HD. There are two basic types of GTX 570. They all use the same graphics chip, but the difference is whether they use the reference vapor chamber cooler, or if they use an after-market custom cooler. Custom coolers will generally result in lower temperatures, but circulate exhaust heat inside the case. The reference vapor chamber will vent exhaust heat outside the case. As long as it is a GTX 570, there will be no difference in the graphics capabilities.