How will Navi 48 with around 240 mm^2 die size reach the performance of AD103 that is already 380 mm^2 and built on the same TSMC N4 node?
I think you must prepare for a flop, rather than an RX 7900 level of performance.
First, Ada isn't 4nm, it's 5nm. nVIDIA
marketed it as 4nm (actually '4n', a made-up name) due to how they tweaked the attributes of 5nm to their liking wrt power/perf/area. This is FACT, and well-documented.
It's why Ada doesn't really scale over ~1.07v; likely saved them area. They sacrified clockspeed potential, but likely gained power savings.
It's likely why Ada is efficient and AMD with higher clock potential is leaky at higher clocks. nVIDIA literally has a gigantic supercomputer that they use to optimize configurations and libraries on a process.
This is why you hear them complain so much when a process isn't perfect (Fermi; 40nm vias) or now even Samsung's HBM. It's because they have everything figured out down to the smallest detail.
Wrt AMD, I think they often use something closer to the more 'generic' version of a process, simply due to engineering budget.
N4P/X is an actual improvement to the inherent process, and hasn't been used in a GPU yet (afaik).
Goddamn it, I get so pissed at how successful nVIDIA is with marketing; Huang truly is like Jobs, and nVIDIA truly is like Apple. People see what they want to see/believe, and those people sell it to them.
Do not be confused; I'm not angry with you, nor do I intend to come across aggressive. You only know what you know, and you know what is marketed, but the reality is that is often bullshit.
Second, are we sure 240mm2? I know people keep saying all kinds of weird numbers, from 200-250mm or so, but I don't think this will necessarily be the case. I *could* be wrong.
I think N48 will be around the size of AD104 (counting the cache which may or may not incorporated into the main die), while N44 the size of AD106/107; somewhere around there.
I believe AMD will fight a chip one size larger from nVIDIA by using higher clockspeeds/voltage and a similar power configuration (ex: 1x8-pin, 2x-pin), but be less power-efficient..which imho doesn't matter.
It doesn't matter because the chips may reach the performance thresholds they need in order to make sense in the market (especially at their comparative price versus other options) with similar connectors.
Will [not any particular aqua-colored youtube channel] probably complain about power/heat? Probably. Will millions of people regurgitate that? Probably. Does it ACTUALLY matter to most people? No.
I'm not comparing it to 7900 levels of performance because 7900 is an extremely vague expression that creates different expectations for different people...which later people will use to bitch and complain.
It's almost-certainly a replacement for the 7900GRE...because that is where they need to compete (with the 4070 Ti Super); they need to beat it in perf...which means competing with 4070 Super in price.
That's because AMD doesn't have a Huang. Well, kinda-sorta technically they do, but let's not get into it.
But anyway, 7900GRE is a really weird SKU slapped together using all sorts of less-than-optimal configurations (like cache/bus) and (clock/power) limitations so it doesn't compete with 7900xt.
I don't think this will be. In essence, it's *potential* should be similar to that of a 7900xt (granted with less memory).
It will probably be stock clocked so they can still sell 7900xt as an upgrade.
I apologize, but some people simply do not understand. Looking at W1zard's stock graphs does not tell the whole story of chips' potential or relative value. Too many people think that...and it's ignorant AF.
It's like...for example and as I've said before...some people will continue to believe a 3070 and/or Ti is a better-performing card than a 2080 Ti because of how W1zard chooses to present his charts.
Those people are fools (wrt value if they don't mind taking time to overclock). In some respects that's okay (because that might fit their use case)...I'm sure nVIDIA will sell them something with >8GB ram soon.
But, you know, it's just not true. The absolute performance of a 2080 Ti is similar to a stock 3080; and 3080 doesn't OC very well so in-fact they are very close; I'd take a 2080ti over a 3070 Ti 10/10 times....
...and the value of a 2080 Ti (at least for a long time, haven't checked lately) over a 3080 10/10 times.
The Samsung 8nm process was a POS (that nVIDIA paid very little to fab their enormous chips). The TSMC 14nm (sorry, "12nm") process was not. In some ways nVIDIA made money off of cheap logic...
...but in other ways they made it off of how they
presented their newer series of chips.
nVIDIA can stock segment their cards however they want to have people perceive something as an improvement, but that doesn't make it accurate. Many times...wrt nVIDIA...and sometimes AMD...it's not.
I apologize, but I just don't feel it's likely we're going to see eye-to-eye on this. It's fine to think the way you do...but man, as an OG enthusiast...it's depressing AF that so many people think similarly.
I wish I had the time and energy to explain so many things to so many people...but it gets tiring. Too often nVIDIA often wins the market not only through marketing, but surviving the battle of attrition against them.