General > General Technical Chat
An article on Static and Dynamic RAM.
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MK14:

--- Quote from: wraper on June 17, 2022, 04:40:34 pm ---IMHO the only major reason is that manufacturers don't want to blur the line between consumer and server/workstation HW since in latter much higher price can be set. For example Intel allows ECC on some of their consumer desktop CPUs... which are on the bottom end, so cannot cannibalize market of high priced systems.

--- End quote ---

I agree, that is a significant factor.  But is still only part of the story.

If I understand things correctly.  The original IBM PCs (at some point), did actually have some kind of parity memory as standard, because of perceived bit-flip issues, with ancient technology DRAM chips of the time, where a theory of Alpha-radiation in the chip packaging (possibly cosmic-rays, as well), were/would cause a number of bit-flips.
Zoli:
"There is always a well-known solution to every human problem—neat, plausible, and wrong" - Murphy.
In this case: random access vs sustained transfer - and all the working tricks to hide the difference. Make a bank of SRAM in the same way as is done with DRAM - now you have 9-12-12-23(access) instead of 16-20-20-38(access) at the 1000Xtimes of the price(all of the numbers are fictional, but in the proper ballpark) to start - is worth?
Of course, if you manage to overtake the whole DRAM market, you can supply those 9-12-12-23 SRAM sticks @6Xcurrent price :-DD :-DD :-DD
Benta:

--- Quote from: Zoli on June 17, 2022, 05:10:58 pm ---"There is always a well-known solution to every human problem—neat, plausible, and wrong" - Murphy.

--- End quote ---

Wrong: H. L. Mencken, 1920. Later paraphrased by others (not Murphy, though).

Zoli:

--- Quote from: Benta on June 17, 2022, 07:33:34 pm ---
--- Quote from: Zoli on June 17, 2022, 05:10:58 pm ---"There is always a well-known solution to every human problem—neat, plausible, and wrong" - Murphy.

--- End quote ---
Wrong: H. L. Mencken, 1920. Later paraphrased by others (not Murphy, though).

--- End quote ---
You've caught me; I was lazy.
Now, do you have anything to add to the SRAM vs. DRAM discussion?
SiliconWizard:

--- Quote from: ataradov on June 17, 2022, 03:50:13 pm ---If you scale SRAM to GB capacity, it will be slower than DRAM of the same capacity.
--- End quote ---

Yup. And:
* The cost (area) of several GB of SRAM, the OP probably doesn't want to know. Completely unpractical.
* With modern multi-level caching schemes, this would make almost no difference whatsoever, at least for general-purpose computing.


--- Quote from: ataradov on June 17, 2022, 03:50:13 pm ---And yes, I suspect this is a bot.

--- End quote ---

I dunno. :-DD
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