ECC/RDIMM

[stevecam]

So I've been reading, watching and viewing some of the data regarding ECC memory

 

Moved to ECC/RDIMM a little while ago

 

While ECC/RDIMM memory has higher latency the ECC can be disabled, not that I recommend it, having the ability to recover from errors and even keep a module in hardware is nice, I can see Linus like parity in his data, and I agree, parity is good

 

The thing people seem to ignore a lot is registration

While AMD indicate ECC support is available in their consumer chips, registered is a problem

Not only is it more difficult to find ECC UDIMM, it puts you in a position where the extra money spent on RAM would be justified by getting a better board and CPU that supports RDIMM

RDIMM is important to gamers and if you compare registeted workstations to unregistered you will see a massive increase in performance

You aren't limited by 2 and 4 channel configurations, you can make use of 6 and 8 channel configurations, if you don't mind NUMA that number can also be much higher

8 channel RAM is not only very fast (it is a rocket) you don't have the same load on the CPU, giving you better thermals

 

If you want the best in gaming you want the best in RAM and CPU, most importantly lower temps

 

Has anyone tried gaming with a RDIMM build? I love it! More then stability going on here

Also, stability let's not forget helps your 144fps look like 144fps, rather then having 144fps delivered in strange times

[NelizMastr]

It's not that simple, though.

 

The difference in cost between a board that supports RDIMM on a current socket vs. ECC UDIMM and regular non-ECC UDIMM is massive.

You need a Threadripper Pro, Epyc, Xeon-W or Xeon Scalable and most of those have reasonably poor gaming performance due to typically

low base clocks. When that's not the case, so high clock speeds, TDP becomes a thing, easily going over 200W, which isn't easy to cool.

 

I have gamed on RDIMM equipped Xeons before, with triple channel DDR3 and it wasn't that different from a dual channel UDIMM configuration

in my experience. Perhaps you're looking through rose colored glasses here as you've apparently been doing this for a good while now.

[stevecam]

It isn't as simple as firing up your Xeon and gaming, you are right

 

Not everyone wants to configure every single component in their build either, and NUMA doesn't really help the general gamer all that much

 

I guess the point is, while ECC memory is being covered for its stability, not much is being covered in regards to registered memory

Registered memory and ECC memory generally go hand in hand, gaming is able to benefit from the amount and speed of your RAM a great deal

Have you seen how quickly you can move 1TB on an Epyc with registered in all channels?
Try doing that on UDIMM and your CPU wants to go on a vacation because it's getting too hot!