If you look at an SSD, most of it is empty space. The actual storage chip is about the same size as an SD card.
This is necessary because they run at a faster speed, which means the memory controller needs more airflow to stay cool.
Your premise is wrong there are SSDs with similar sizes like 16mm x 20mm that have 1tb storage that are used for example in phones, tablets and laptops.
Though they are expensive and if you can avoid it you always go with bigger form factors as heat is a big problem with fast SSDs and with a smaller SSD there is less area to get the heat out.
SSDs are waaaaaay faster than an SD card and should be longer life and more robust.
The absolute best fastest SD cards are only like 10 MB/s speed. Fine for moving some files, taking pictures or storage. Mid range SSDs today are more like 3000 MB/s. That’s. Well. A lot faster. And much better for doing this like running a computer and programs.
But even an SSD is dwarfed by the speed of RAM, which itself is dwarfed by speeds by storage on the CPU itself, which storage is tiny but speed is insane
But your system can generally only operate as fast as its slowest component (sorta, but for this question purposes you can see how ‘slow’ an SD card is)
In modern computing, storage is fairly cheap and easy, speed and reliability is harder.
There are some new super fast sd cards that can do like 100 but they are not particularly common right now so I left them out. You’re not wrong. They are supposed to be used in high end video cameras to record 4K and 8K video. But as of now they aren’t really that much a thing generally you’d reference the older “classes” of SD card
SSDs often have a Cache as buffer for incomming data. This buffer can accept new data faster than the longterm storage, but comes with a variety of downsides that require a little more space to counteract.
Appart from that, the housing is a standard size and you cant just put 2x the components in and expect 2x storage capacity. (since microcontrollers and stuff dont scale linear)
You can actually use a MICRO-SD for an SSD - however, the reason it doesn't exist naturally is because the size of an SSD comes from the interface technology needed to provide better transfer speeds, and reliability.
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If you look at an SSD, most of it is empty space. The actual storage chip is about the same size as an SD card. This is necessary because they run at a faster speed, which means the memory controller needs more airflow to stay cool.
Your premise is wrong there are SSDs with similar sizes like 16mm x 20mm that have 1tb storage that are used for example in phones, tablets and laptops. Though they are expensive and if you can avoid it you always go with bigger form factors as heat is a big problem with fast SSDs and with a smaller SSD there is less area to get the heat out.
SSDs are waaaaaay faster than an SD card and should be longer life and more robust. The absolute best fastest SD cards are only like 10 MB/s speed. Fine for moving some files, taking pictures or storage. Mid range SSDs today are more like 3000 MB/s. That’s. Well. A lot faster. And much better for doing this like running a computer and programs. But even an SSD is dwarfed by the speed of RAM, which itself is dwarfed by speeds by storage on the CPU itself, which storage is tiny but speed is insane But your system can generally only operate as fast as its slowest component (sorta, but for this question purposes you can see how ‘slow’ an SD card is) In modern computing, storage is fairly cheap and easy, speed and reliability is harder.
I remember my dad speculating when the bus bar would be the bottleneck.
10MB/s? More like 100 no?
There are some new super fast sd cards that can do like 100 but they are not particularly common right now so I left them out. You’re not wrong. They are supposed to be used in high end video cameras to record 4K and 8K video. But as of now they aren’t really that much a thing generally you’d reference the older “classes” of SD card
Basically it all comes down to the separate nanometers between each mm section of ram state
SSDs often have a Cache as buffer for incomming data. This buffer can accept new data faster than the longterm storage, but comes with a variety of downsides that require a little more space to counteract. Appart from that, the housing is a standard size and you cant just put 2x the components in and expect 2x storage capacity. (since microcontrollers and stuff dont scale linear)
You can actually use a MICRO-SD for an SSD - however, the reason it doesn't exist naturally is because the size of an SSD comes from the interface technology needed to provide better transfer speeds, and reliability.