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[JEMC]

Pemalite said:

JEMC said:

I won't try to defend what's indefensible, but that comparison is, at the very least, misleading.

The 6800XT is last gen, not this gen. The 6800XT had 72 CUs, yes, but the 7800XT has 60CUs. That means that the 8800XT's alleged 64 is an increase over what we have. And let's not forget that the 60CUs of the 7800XT are as fast at the 72s of 6800XT.

Plus we have the other rumors about how it performs outside of its technical especifications.

Let's put everything into perspective.

On the other hand, the 32CUs of the 8600 is rather disappointing, so they better be extra powerful to match or beat the 7700XT.

It is extremely misleading, you probably understand my pet peeve with people taking one aspect of a piece of silicon and running with it. :P

80CU's at 1GHZ is equivalent to 40CU's at 2Ghz.

That's ignoring architectural changes like dual-issue ALU's which, although compiler heavy, can increase throughput substantially in the right circumstances... Which also means you don't need as many CU's. - Which is why we saw that CU regression in the 7800XT, but still offered more compute and often outperformed the 6800XT.

The 5600XT had 36CU's and got beaten by the 6600XT with 32CU's by about 20% on average.

Let's take mobile for example. AMD has stuck with 10-12CU's for years, yet my old Ryzen 2700u (R.I.P) notebook from 2017 with it's 11CU graphics is not even remotely in the same ballpark as something like the Z1 Extreme with 12 CU's, we are looking at like a 5-6x performance uplift.
The 1.3Ghz vs 2.7Ghz clockspeed difference doesn't help, but neither does the DDR4 2400 vs DDR5 7500Mhz.

More to a GPU than just the CU. I'm fine with 32CU's, it's everything AMD builds into those CU's that matters.
AMD also need to focus on maximum bang-for-buck, which means smaller, faster chips at a lower price.

Of course I agree.

My disappointment with the rumored 32CUs for the 8600 is not related to its possible performance, but its possible memory configuration. We don't know if AMD has changed it or not, and so those 32CUs made me think of a 128bit card with, yet again, 8GB. For a card that should hopefully perform like the 7700XT, that's not enough.

Hopefully, that's not the case, but the doubt will remain until we know more.