• Ram speed lower than expected speed
    8 replies, posted
Hey guys. I'm having issues with my ram right now. This is the ram I currently have G.SKILL Aegis 8GB 288 Just one stick currently. For some reason the speed it's running at is different than the one advertised. https://i.imgur.com/K2Pwk0g.png I also checked on pc benchmark to see if speccy was just being dumb, but nope. My speed is really that low. Is this the ram or is my PC being fucky? Thanks in advanced.
DDR4 is double data rate 4, meaning that number, 1064, is multiplied by 2. You're currently running at 2133 MHZ.
Probably has to do with the whole "single channel" thing
I'm pretty sure you need to enable XMP/DOCP in your BIOS and apply a profile to get DDR4 running past 2133 MHz, unless JEDEC changed the standard while I wasn't looking. Getting it up to the advertised 2400 MHz should be pretty simple. Channels have nothing to do with frequency, dual-channel simply doubles the memory bandwidth of your RAM. However, real-world performance difference between single and dual-channel is less than 5%.
thanks that was the issue
It's been a while since I built a new PC and I'm kinda out of the loop, but I know with DDR1, 2 and 3 RAM I have bought in the past, the advertised speed always seems to be the MAXIMUM, meaning you'd have to overvolt to reach it.
It's basically standard practice now that the stick has an XMP profile on it that sets timings and voltages correctly when you select the option in UEFI. 1.35V is pretty often used for faster than standard operation - DDR4 is 1.2V by standard.
Haha, this makes me feel old! I remember needing 2.4volts to his 2.4ghz on my DDR3...
DDR4's rated frequency is the frequency it attains with an XMP profile, no manual overclocking required. Manually overclocking RAM is mostly a thing of the past.
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