Originally Posted by rluker5
The latency looks better to me. What am I missing here? Intel atom systems run ram at that latency. Not ideal, but they act like they have ram. Would games need assets loaded to ram, ever, if they were installed on optane dimms?
And this article I got the pic from is suprisingly downbeat on optane as well. https://www.extremetech.com/computin...e-improvements
The scale on that chart is logarithmic.
As commented, in reaaaaaaaaaally small font on the left side, Optane DIMMS do not compete with RAM latency, though I am glad to have testing backup my comment. Anywhere from 2.5-5x the latency of same speed RAM (180-340ns vs 70ns).
The thing is... AMD has the required bandwidth to load an entire 2TB database into RAM in about 15-20 seconds (Provided you dump enough SSDs into the system to provide that bandwidth obviously), and from there use the significantly better latency for months until you need to perform updates, at which point lol, you get to wait for a 4TB server to reboot. Go get yourself some dinner, you'll be back in time to open the boot menu.
Intel has about the same performance capacity too, it's just that they need more lanes or a faster QPI/UPI to pull it off and you need to pay a stupid amount of money to support higher RAM counts.
But that's just it, if you are hurting for IOPS that bad, you are also probably busy nuking your CPUs. If you want more IOPS to the kind of extremes Optane DIMMS want to replace, the best way to handle it is resource pooling. More servers, with semi-unified storage. vSANs, load balancers, etc. Something that provides redundancy. You can not hot swap a DIMM,
but in the more advanced stuff you can hotswap NVMe drives just fine. When you are playing at this level, you run under the expectation that parts will fail and that they will not force you to kill the whole thing while you fix it.
Optane DIMMs are... cool I guess. I'd like to run two sticks of RAM, two sticks of Optane DIMM, and be able to move back down to X570 instead of X399. But they are not game changers.
Optane, or more specifically XPoint, however, is incredible. NAND SSDs look fast, but that's mostly the large DDR cache and NVMe queue buffers talking. Optane's durability and random speed is insane, and only the high cost makes it not compete.
Originally Posted by Liranan
Who is still worried about wearing out their SSD? Anyone still worried can use an 830 and enjoy those 8PB that can be written to the drive.
People who can't afford SLC NAND and buy QLC or soon to be PLC.
The Intel 660p is pretty much the king budget stick at the moment...
Endurance Rating (Lifetime Writes)
But those people don't have enough RAM for a ram disk probably.