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New DDR3 module voltages higher than in previous years?

mikeymikec

mikeymikec

Lifer
More than a year ago (I can't remember when), I had the choice of 1.35v DDR3 desktop modules or 1.5v, with the occasional "high end" ones with voltages higher than 1.5v.

In 2010, I bought 2x 2GB Kingston HyperX DDR3-1600 1.5v voltages, now (when I'm looking for the same modules as I bought before, idly thinking about upgrading memory in my system), all I can see available are 1.65v ones, and nowadays I haven't seen any 1.35v modules in quite some time (I'd say more than 12 months).

Any ideas why?
 
ShintaiDK said:
Samsung produces 20nm now. The only difference is that they just dont sell it under their own name for desktop.
Click to expand...
Oh well that explains things 😀 Has there been any substantial difference with the 20nm? I recall the OC craze with 30nm but does 20nm have teething issues like die shrinks sometimes have?
 
I live in the UK.

When I specifically search (cclonline.co, scan.co.uk and Amazon UK) for 1.35v, I get some results but they're usually for SODIMMs or higher-end modules than what I'm normally looking for (even then, the selection of desktop modules is pretty small). As opposed to a few years ago, when probably half of all the selection at any level of the range were 1.35v modules.

cclonline.com even mentions a few 1.9v DDR3 desktop modules - is this likely to be a typo or are there actually modules that require that much voltage around?
 
mikeymikec said:
I live in the UK.

When I specifically search (cclonline.co, scan.co.uk and Amazon UK) for 1.35v, I get some results but they're usually for SODIMMs or higher-end modules than what I'm normally looking for (even then, the selection of desktop modules is pretty small). As opposed to a few years ago, when probably half of all the selection at any level of the range were 1.35v modules.

cclonline.com even mentions a few 1.9v DDR3 desktop modules - is this likely to be a typo or are there actually modules that require that much voltage around?
Click to expand...

Try this:
http://skinflint.co.uk/?cat=ramddr3&xf=2216_DDR3~2396_1.35V#xf_top
 
Voltage seems to be dependant on RAM capacity, too. 1.35V is common for current 4 GB DDR-III modules, but for 8 GB modules is 1.5V.
 
zir_blazer said:
Voltage seems to be dependant on RAM capacity, too. 1.35V is common for current 4 GB DDR-III modules, but for 8 GB modules is 1.5V.
Click to expand...
That's just an economics issue. You can get higher capacity DIMMs in lower voltages, but they are only needed by computers that only support DDR3L, the overwhelming majority of which are mobile.
 
zir_blazer said:
Check the filters. You have tons of SODIMMs there because you're looking at Laptop Memory
Click to expand...
I specifically browsed to laptop memory, because mobile CPUs commonly support DDR3L, but not DDR3, so there is much more of a market for it there. Desktop users don't need it; notebook users do.
I'm talking about standard DDR-3.
Click to expand...
Standard DDR3 is up to 1.5V. I have yet to see a non-mobile CPU that only supported DDR3L (I wouldn't be surprised if some low-coltage Xeons are that way, though).
 
The only 1.65 Modules you will find are either Tight timings Kits or High Mhz kits as the Voltage is often needed to stabilize these settings.

That Said most still still run at the 1.5v standard if on regular jedec timings
 
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