@La Menthe Actually, it's not massively off 40% single core gain- ~15% IPC uplift and then put ~12% clock speed improvement on top: That's about 30%. Plus they may purposely be keeping the clocks at "sane" levels. Add another 5% for OC (assuming it will do it) and you have 37%.
I'm not saying it is 40%, but it may be a lot closer than you might think.
Except you're taking several senseless liberties with your arithmetic here, exaggerating the numbers at every turn in a desperate attempt to prove him right. You add up 12% and 15%, deciding it's 30% (when it's really 27%) already before your final number. Then you take that 30% to add 5% on top of it, which somehow becomes 37%. So 32%, the real final number, became 37% through some quick manipulation...
And all that's assuming the numbers you calculated were correct, which they even aren't -- yes, they too are purposefully exaggarted by you. IPC is 13% from the most accurate numbers we've seen. Clock speed certainly isn't 12%, as 4.7GHz is only 9% higher than 4.3 GHz (12% implies a 4.9 GHz turbo). OC isn't worth speculating about, as it can be 0 or as little as it was with 2700X (at which point we convert it to 0 anyway, to account for both chips' similiar OC potential) for all we know.
That gives us a total of 21% (or 23%, assuming IPC actually is a straight 15%) better singlethreaded performance, half of the numbers
@Captain_Tom claimed.
And now he's off rambling about an additional 15% higher performance uplift + 2x reduction in power (7nm EUV wil supposedly magically cut power usage in half from current 7nm processes -- equal to, or arguably even more than, what we just saw from GloFo 12nm+ to TSMC 7nm with Zen 2) for Zen 3.
We just don't know and whinging about a 10% deficit versus RUMOURS when we are seeing such amazing value versus what was available 2 years ago (and even current pricing from the competition) seems a little bit unfair.
20%, not 10%. And I agree, which is why I told him several times to stop making ridiculous speculation, as the conservative predictions and numbers, for which people like me were presenting, were already a prospect of great improvements. You know, the same kinds he's making about Zen 3 now.