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One outcome that is highly likely is that the processors will be highly integrated, with the whole system on a chip: CPU, GPU, memory controller, network/stora
by Andys 17y ago
One outcome that is highly likely is that the processors will be highly integrated, with the whole system on a chip: CPU, GPU, memory controller, network/storage/pci/usb/etc controllers.
- Retric 17y agoI could see integrating crappy onboard graphics cards with a small slice of the CPU, but integrating a full modern GPU would be hard. The issue is memory bandwidth. A 285 GTX has 159 GB/sec of memory bandwidth and 1GB of ram. For 250$ you can get 4GB of DDR3-1600 but that's only 38GB/s. So, if you want good preformance and low cost you need to seperate the video memory from system memory. But, now you have two set's of memory that each need to be close to the CPU/GPU for latency issues. So, 2022's high quality cellphones, laptop's, and desktops are probably still going to use CPU, RAM, GPU, VRAM. But, I can see them mixing at the low end.
- wmf 17y agoIf memory demand grows slower than Moore's Law, you could put all the graphics memory on-package to save pins.
- Retric 17y agoCache would need to grow to something like 200x its current size to act as graphics memory today. So the need for more graphics memory would have to be far slower than Moore’s law for a long time for that to happen. PS: Don't forget 3D graphics cards are still far too slow. You really can tell the difference between images generated with 1000x the processing power of today’s graphics card vs. 100x more powerful. Sound and 2D graphics cards passed that threshold where people stopped noticing more processing power so they became integrated.