I'm happy to get you a contact number, what country are you in? If I can get that from you, I may be able to help you have a smoother experience.   Both the 14G and 15G servers are awesome. Coming from a support viewpoint, I *VERY MUCH* like the 14G servers and the 15G are looking to be great, too.    The xd is short for "Extra dense," I'm pretty sure. That said, the other suffixes aren't anything I've ever explored or tried to find what they may stand for. For example, the R730XD has more storage capacity than the R730, due to a mechanical difference in chassis design.   Both the R640 and the R650 are using DDR4 memory, but the R650 is exclusively showing memory speeds of 3200MHz in my parts database. One difference is that the hardware sets that the generations get validated with get refreshed, but as you'll see in the forum, many officially unsupported pieces of hardware still work out fine.   Hopefully this sheds some light, but I feel like a phone conversation may be more productive. There are similarities in hardware support, and depending on what your needs are, the 14G may be perfectly suited for them. I would be more than willing to bet that either would be satisfactory, though,
Hi! I am about to buy a few new servers, and again i wonder, do i need a R640 or can i settle with a R440? and so on:) So i wonder, is there a good summary/overview about the different models? Also, i went to [URL] and configured a R440 and a R640 with similar specs, and got very similar prices (R440 was even a bit more expensive). What should i make of this??  Thanks in advance!
overview of differences between R440, R640, R650 and so on