LOL. I never said it wouldn't - it's the reason Sony can use it fgs. But just because it will doesn't make it a good idea to install GDDR5 on a pc. Support means nothing wrt performance, that article is also stuck on the GPU only angle.
Here is the update to it and if you still think GDDR5 is so good for computing then suggest that Intel's DDR3 "APUs" will be inferior among a bunch of Intel fanbois and see the derision you will rightfully get from them.
That is exactly what I said where you said it depends on clock cycles. No it doesn't, it depends on time. When a data segment is accessed it takes a certain length of time to fetch and deliver. That time is the same regardless of the clock cycles so if you speed them up it will take up more clock cycles. No that table doesn't illustrate your point it seems you don't understand why the numbers in the table increase as the clock speed increases. The only thing that can improve latency is changing the voltage.
This is falling on deaf ears.

You can't make a comparison between completely different architectures, and a current gen one with one from years ago at that. It's like comparing apples and oranges. L3 cache does improve memory performance and processors that have it will perform better than the same processor that doesn't. It's limited or left out of budget processors because you get what you pay for lol.
They have basically the same CPU so eSRAM will make a difference and it IS cache. The reason they call it eSRAM is because it's embedded and not on-die. It's still faster than main memory and 32MB is anything but little if managed correctly. Shaders are not everything without the ability to keep them all occupied.