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[Bofferbrauer2]

JEMC said:

Yeah, saw it this morning and left me puzzled.

One the one hand, that rumored Navi 21 is exactly twice as big as Navi 10 (the 5700XT has 40 CUs, 2560 shaders and 251mm²), which is impressive. From a theoretical (and completely false), point of view, that could give us twice the performance of the current parts at the same power consumption. And that's before taking into account architecture improvements/optimizations... But, for some reason, I have a really hard time believing it. My brain refuses to acept this possibility.

Tho I have to admit that it would honor its "big Navi" nickname.

And on the other hand, the leak also talks about Navi 10 refresh, which makes me wonder if AMD will go back to its bad antics of reusing/rebranding existing parts like they did a few years ago. Don't get me wrong, a RX 6600 (to say something) powered by the same Navi 10 chip that's inside a 5700 would be great, but it's a reused part that won't have any of the improvements nor the ray tracing capabilities of its bigger parts and the Nvidia counterparts.

So yeah, I'm divided, equally excited and worried.

I think at the time Navi got developed, AMD was still very strapped for cash and ressources and were concentrating all it's ressources on Zen, so they couldn't develop an entire stack just yet and had to concentrate on a certain chip instead, like they did with Polaris and Vega before. But I think in 2021-2022 AMD will finally release a full stack of GPUs again, as they are finally able to develop both CPU and GPU at full speed in parallel to each other.

At least they could patch them all together into a common naming scheme for now, something like this:

Lexa (8-10 GCN4 CU): OEM only  RX 6100

Baffin (14-16 GCN4 CU): Entry level RX 6200

Navi 14 XT (22 RDNA CU): Budget Gaming RX 6400

Navi 10 XE-XL (32-36 RDNA CU): RX 6500

Navi 10 XT (40 RDNA CU) RX 6600

Navi 23 (52 RDNA 2 apparently): RX 6700

Navi 21 (80 RDNA2 CU?) RX 6800-6900

As for the Navi 21 leak, it reminded me of the 4870 a dozen years ago and what big of a jump over the 3870 it was, going from 4 to 10 Shader groups (Or CU, as their GCN equivalent would be known as later on).

Last edited by Bofferbrauer2 - on 24 May 2020