| Kasz216 said:
I don't see the point in changing the analogy that way. It may accomplish a lot of tasks quicker, but it's still slower. That's specifically what latency is measuring. The speed. Latency is speed, Bandwith is amount of data able to be carried. You can change the analogy how you want... but that's what it is in reality. Even if GDDR5 is faster at accomplishing the particular goal. It's slower. It accomplishes things faster by "carrying" things quicker. So to call it faster isn't really correct. If you want to say it accomplishes specific tasks quicker... sure. However it's in fact slower. It's like saying Brian Shaw is faster then Usain Bolt because he can clear out a garage faster. He's faster at doing that, but he's not actually faster. Meaning that such a qualifier should always be put in conversation. Brian Shaw is insanely fast "At cleaning out garages". etc. Call me a literalist i guess. As for the PS4. I've got to think the cooling solutions for this will be pretty large... sort of defeating the point of a "slim". Afterall the main reason people don't use memory stacking right now is because of the heat generated between the layers. |
You are a literalist all right.
Its all about perspective. Sure latency is an aspect of ram speed, its essence, but bandwith is also an aspect, but since there are more aspects to ram Speed neither aspect is absolute in the context of things. gb/s is the speed I talk of. I changed the anology in a way to explain real life implications of the "speed" advantage GDDR5 has.
As for stacked Ram. A 14nm PS4 Apu is small and cool. Stacking the ram on top of it by then should be possible. And not require huge cooling. Maybe use DDR4 modules which need less power and generate less heat ? Its all possible to achieve in the year 2019.
