Timeline for answer to Is there a theoretical possibility of having a full computer on a silicon wafer instead of a motherboard? by user57037
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| Jan 5, 2021 at 23:58 | comment | added | supercat | @user1850479: The graphics chip used in the 1980s Famicom/Nintendo Entertainment System includes about 256 bytes of dynamic memory on chip, though the layout is designed to fit the process used for the rest of the chip, rather than high-density DRAM processes. | |
| Jan 3, 2021 at 5:31 | comment | added | user1850479 | @metron It is possible to put DRAM on a logic die, just very expensive compared to putting it on a dedicated memory die. Some products do integrate DRAM and logic on the same dies however: semiengineering.com/the-power-of-edram | |
| Jan 2, 2021 at 21:19 | comment | added | Elliot Alderson | @metron I don't think it is strictly a matter of whether it is possible to integrate a modern CPU (such as in Intel i5, say) with DRAM...the real question is whether it makes economic sense. Based on what we see in the market, it does not. | |
| Jan 2, 2021 at 20:25 | comment | added | user57037 | Yes. Also, different people make different choices regarding how much SDRAM they want. So you would have to support more variants with different amounts of SDRAM. | |
| Jan 2, 2021 at 20:19 | comment | added | metron | So in your opinion the difference in fabrication for SDRAM and SRAM is the reason we can't integrate the memory perhaps (SDRAM) directly into the same die that hosts cpu? | |
| Jan 2, 2021 at 19:59 | history | answered | user57037 | CC BY-SA 4.0 |