ethomaz said: Again the AMD Radeon HD 7670M have a die size of 118mm^2... the 104mm^2 of you article is wrong. GPU-Z: http://www.techpowerup.com/gpuz/3eyre/ Anyway for me 400 or 500 GFLOPS is the same for next-gen... really weak... the Wii U GPU is unbelievable weak for the next-gen... I don't need to prove anything because even the biggest Nintendo fans knows that... and that is way off topic to try correct your wrong numbers. The size of the eDRAM is the best scenario too... 32MB eDRAM can be bigger than 55mm^2. |
As you still haven't provided any sort of source for the claim that 32MB eDRAM must necessarily be at least 55 mm^2, I'm inclined to assume that you're working off what you've been told by someone on Beyond3D without any actual checking of facts.
What is particularly notable is that we don't yet actually know the fabrication process size, yet. For all we know, it could be 28 nm. Or 55 nm. Until we know that, it's still nothing but speculation, in that regard.
And it's not off-topic, because when discussing the PS4 "leaked" stats, we need to have some sort of reference point in order to get a handle on just how powerful these numbers are supposed to be. But you seem to be doing a good job of dodging the calls for sources and solid arguments, so I'm guessing this is just another dodge.
The fact that you use phrases like "unbelievably weak" tells me that you're not being reasonable in this discussion, but rather, that you have a rather strong bias. I'd really rather get solid numbers, thank you very much. If the numbers aren't solid, I'd rather you say so, instead of spouting speculation as though it's fact, and then decrying my demonstration of the holes in your argument (another of which is the point I've emphasised a few times: "modified").
Anyway, here's a different way of looking at things. According to Wikipedia's pages on Xenos and RSX (the GPUs in the 360 and PS3), they pushed 240 GFLOPS and 400 GFLOPS, respectively. The leaks for the new systems say 1.2 TFLOPS and 1.8 TFLOPS. That makes them 4.5-5x the power of the 360 and PS3 with regards to GPU. The CPU of the PS4 is supposed to be slower than the Cell in the PS3. So unlike the massive jump that occurred Xbox->360 and PS2->PS3, this is a relatively modest boost. In fact, it's significantly slower than one would anticipate based on Moore's Law, which would have suggested that the new systems would be somewhere around 11-16x the power of the previous generation.
This, again, supports my suspicion that Sony, at least, and probably MS as well, are trying to reduce costs relative to the previous generation. I predicted this quite strongly in the case of Sony - I said that the power would be only a modest improvement on the previous generation, and even less so compared with Wii U. That said, I predicted that MS would push further, as they would want greater parity with PC, whereas Sony would be more concerned with keeping costs down. Either way, Sony do appear to be staying far more conservative, in my opinion, if these numbers are true, and that's what I expected.