I think this is a good price for a 16GB (2x8GB) 3200 C16 kit of DDR4 compared to other prices on offer at the moment.
https://www.gskill.com/en/product/f4-3200c16d-16gtzkw
Note it is probably not b-die so may not be the best kit for extracting every bit of performance from a Ryzen based system:
https://benzhaomin.github.io/bdiefinder/
Yeah cas is one of those over looked paramters with clock speed and cost grabbing headlines.
they are non-rgb version, are they?
correct
This here is the RGB version with low CAS latency. B-die RAM is very premium though and it costs quite a bit more.
I've been spending the last week trying to get my head around the most ideal samsung b-die kit for a threadripper build.
e.g. 3200 C14 is better than 3866 C18 I'm gathering. Since I'm looking at 4x16GB I have to accept 1) it's a little slower than the 8GB units most Ryzen buyers aim at and 2) it's going to cost ~$1000 cries
Am I on the right track?
4x16?! Holy heck do you need that much ram?!
No, speed is more important and CAS latency isn't what many people think it is.
http://www.crucial.com/usa/en/memory-performance-speed-laten…
I prefer to think that they are mutually exclusive: https://www.techpowerup.com/reviews/Intel/Core_i7_8700K_Coff…
Yeah in my case, overall latency is pretty similar across all dual rank 16GB sticks. Hence my ? the 3200 seems quicker than the more expensive options.
MT CL ns
3200 14 8.75
3400 16 9.41
3600 17 9.44
3744 17 9.08
3866 18 9.31
@Filename: Key part is that the infinity fabric speed is defined by the memory speed. And since it's threadripper, the IF is going to matter, a lot.
As you find, the nanoseconds across all the kits tends to be similar, so it's worth getting the fastest speed that will work at the roughly same cost - to push the IF speed up.
I've got a computer with 64gb of ram (was an old company VM host). I've never come close to needed all that ram. You probably only need to start at 16gb.
windows 10 pro 64, office 365, outlook, visio and word and I've barely hit 8GB and that is only because of the number of duplicate apps I've launched (Visio).
If I want to get beyond 8gb I need to launch photoshop elements or do some video editing and then I still don't hit 16GB.
I'm running several VMs, 3D rendering, VFX work and recently more computational research (eg. some geospatial work, hyperspectral datasets etc.). RAM does get eaten up, and it's Threadripper so needs to be 4x something for quad channel. I'm already contemplating switching from the 2950X to the 32 core unit, although I like to game on it too and boost clocks are higher on the former.
Each to their own, but 10-15 years ago my daily machine was a double quad-core Opteron with 32GB memory, so from my perspective 64 is actually rather on the low end!
Thanks Diji, I think I saw that page. It is still difficult to get TR specific information as a lot of it is rather polarised or over opinionated forum discussions going in circles. At least getting B-die will be a big improvement.
It all depends on what you want to do. If you are going to manually set the timings and speed, I would get the cheapest guaranteed b-die kit that you can get your hands on, have a play with Ryzen DRAM calculator and prepare to spend a weekend playing with it to get it fast and stable. If you are looking for a plug and play kit you need to find a kit that is guaranteed to work with a Threadripper at the advertised speed/timings.
EDIT: Interesting read about Ryzen and memory scaling: http://www.legitreviews.com/ddr4-memory-scaling-performance-…
Thank you, that's what I've been reading a lot of. I already have the calculator sitting unzipped on my desktop. So yes happy to tinker (to an extent). Would have just bought something good with the CPU but at the current RAM prices I can't really afford to chop and change. My confusion was whether the higher speed b-die are higher binned or really mostly the same, with the right tweaking.
Please tell us what you find as I am in the same boat, looking for 64gb.
I know that memory is one of the most reliable PC components, but how does warranty/returns etc work when purchasing from Newegg?
Generally 14 day DOA policy IIRC. Beyond that you might have to deal with the manufacturer but it's RAM so at least it's cheap to ship back.
Run MemTest86 on it when you get it for an hour. That should pick up any manufacturing faults.
No zippay or afterpay kills it for me
I tried wallet wizard and nimble but none would loan me for ram purchase.
How can you rationalise loan sharks for ram?
So ram price is going down or this is an isolated deal?
The trend is down, however this price is probably due to black friday.
yeah, all these google home devices and Facebook devices and alexas, etc all need RAM. Slow flash isn't an issue as most appls load into RAM for speed, hence we we are seeing flash prices fall as 3D TLC has high yields, but no breakthough in dram to boost yields and speed.
Still waiting for RAM I ordered from Newegg weeks ago. Be prepared to wait.
Wouldn't it be better to spend the extra $1 to get the ripjaws 3600 posted a day or two ago?
Oh, the other stuff has a higher CAS, that's why.