overview of differences between R440, R640, R650 and so on

Question

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 https://www.dell.com/sv-se/work/shop/servers/sc/servers/poweredge-rack-servers 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!

Dell-DylanJ · Accepted Answer

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,

Dell-DylanJ · Answer

The R440 and R640 are 14th generation servers. The R650 is a 15th generation server.

A server needs to be built and selected based on load. Without knowing what you want to do with it, no recommendation can be made.

As the first digit in the model increases, the max load the system can support is going to increase. As you noted, a well configured R440 can compete with certain R640s.

I would recommend contacting sales and working a representative to identify what may suit your need best.

Alexander-36725 · Answer

PM sent!

Alexander-36725 · Answer

Yes, but what do these things mean for real?

A R640 has more RAM-slots than a R440, and what else?

A R650 is 15th gen and R640 is 14th gen, yes i know that, but what has changed between those two generations?

And so on:)

Btw, how/where do i contact sales?

Thanks!

Alexander-36725 · Answer

And the xs, xa, xd, xd2 endings, what do those mean? Just curious... probably never will use any of that:)

Origin3k · Answer

To compare the basics take a look to https://www.delltechnologies.com/asset/en-us/products/servers/briefs-summaries/dell_emc_poweredge_rack_quick_reference_guide.pdf which includes 15th. and 14th. Gen as well.

Well.. the modells are categorized
Dell R1xx - 3xx = 1s Entry level
Dell R4xx - 5xx = 2S Standard
Dell R6xx - 7xx = 2S Premium
Dell R8xx - 9xx = 4S Enterprise

and very often the Intel CPU together with the category makes the difference. Example: R640 with 6 memory channel with speed up to 2600-2999mhz(Depends on choosen Intel CPU) but the R440 only have 4 memory channels and for both you will 3200mhz memory Dimms(because of the high selling volumes they are the cheap).
In 15Gen the R650 comes with 8 memory channels and up 3200mhz memory speed with the right CPU but R450 will still on 4 memory channels for example. But 8 memory channels means you need to buy 8 dimms per CPU socket to archive the max. memory bandwidth. So if the requirements isnt a high memory server this doesnt matter.

The R6xx/R7xx are the general purpose servers and offer most if not all available options and these 2 always comes first to the market if there is a Intel CPU refresh or new tech available.

Comparison between R540 vs. R550 for example:

R440 vs. R450

R650xx

Regards,
Joerg

PowerEdge Hardware General

overview of differences between R440, R640, R650 and so on

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