The only Navi 32 rumours still had it as 192-bit card, didn't they?
That's what TPU have in their placeholder in their database
Graphics card and GPU database with specifications for products launched in recent years. Includes clocks, photos, and technical details.
www.techpowerup.com
If it is 192-but it can either be 12GB or 24GB
What I would question, is such a cut-down part worth going multi-chip for?
A 256-bit max would make far more sense.
However, since Navi31 was the 6900XT/6800XT and 6800 replacement, then if Navi32 is only the 6700 replacement then 12GB might make sense.
Leaves a huge gab between them all though.
Navi32 reaching 6900XT performance while using 100W isn't that bad, but 12GB is a downgrade. Price had better be good then (as if!)
I can't see how Navi 33 can replace Navi22 with far less shaders,and not a massive increase in clockspeeds,ie,because Navi 33 is using an improved 7NM node:
2560 Cores, 160 TMUs, 64 ROPs
www.techpowerup.com
2048 Cores, 128 TMUs, 64 ROPs
www.techpowerup.com
TSMC 6NM is essentially a higher density 7NM process node:
www.anandtech.com
AMD basically die shrunk Navi 23,added some RDNA3.0 improvements and came up with Navi 33. Also the laptop RX6600M/Navi 23 is being directly replaced by the RX7600M/Navi 33:
Specifications and benchmarks of the AMD Radeon RX 7600M GPU.
www.notebookcheck.net
The shader count hasn't changed! That means if AMD rebranded a Navi 33 dGPU as the RX7700XT it would be a downgrade in core speed and VRAM.
I think this is the most likely line-up:
1.)RX7800XT - Navi 31 with a 256 bit memory bus and 16GB of VRAM. Might be a slightly cut down version of the core in the RX7900XT,but with less VRAM. But it could be AMD won't bother,and drops the price on the RX7900XT to fight the RTX4070TI.
2.)RX7800 - Navi 32 with a 192 bit memory bus and 12GB/24GB of VRAM. Would have more shaders than an RX6800. If it is about RX6800XT level,might be the competitor to the RTX4070 12GB.
3.)RX7700XT - Navi 32 with a 192 bit memory bus and 12GB of VRAM. Cut down core,but more shaders than an RX6700XT. 3072 shaders? Would make the 4096 shader RX7800 a big upgrade. Might push it upto RX6800 level.
4.)RX7700 - Navi 32 with a 160 bit memory bus and 10GB of VRAM. Probably quicker than an RX6700XT. Same amount of shaders as an RX6700XT?
5.)RX7600XT -Navi 33 and 8GB of VRAM
6.)RX7600 - Navi 33 and 8GB of VRAM
That range would technically make no SKU a downgrade in shaders or VRAM amounts. But the bigger issue will be any price rises. The RX6600XT was a decent upgrade over the RX5600XT,ie,more shaders and more VRAM but cost almost as much as the previous generation RX5700/RX5700XT 8GB.
Lets say AMD does decide to not be stingy with VRAM compared to the last generation. So it could be:
1.)RX7800XT - Navi 32 with a 192 bit memory bus and 24GB of VRAM
2.)RX7800 - Navi 32 with a 160 bit bus and 20GB of VRAM
3.)RX7700XT -Navi 32 with a 128 bit bus and 16GB of VRAM
4.)RX7600XT - Navi 33 and 16GB of VRAM
5.)RX7600 - Navi 33 and 8GB of VRAM.
Not sure about the second scenario,as Navi 32 only has 4096 shaders,so not sure how it would beat the RX6800XT with 4608 shaders that much? If it can,then we might see the second scenario then.
If AMD tried to make the RX7700XT based on Navi 33 with 16GB of VRAM,it could only happen if Navi 33 really clocks high. But the issue is TSMC 6NM,which is density optimised 7NM,going to clock much higher?
Sadly,if AMD was actually bothered about competing
in a minimal way the line-up would have been:
1.)RX7900XT 24GB - Navi 31(384 bit memory controller).Competes with RTX4080 16GB.£900~£1000.
2.)RX7800XT 20GB - Navi 31(320 bit memory controller).Competes with RTX4070TI 12GB.£700~£750.
3.)RX7800 16GB - Navi 31(256 bit memory controller).Competes with RTX4070 12GB.£550~£600.
3.)RX7700XT 12GB/24GB - Navi 32(192 bit memory controller). Competes with RTX4060TI 8GB.£450.
4.)RX7700 10GB/20GB - Navi 32(160 bit memory controller).Competes with RTX4060 8GB.£350~£400.
5.)RX7600XT 8GB/16GB - Navi 33(128 bit memory controller).Competes with RTX4050 6GB. £250~£300.
6.)RX7600 8GB - Navi 33(128 bit memory controller).£200~£250.
Instead AMD has made Nvidia look competitive with their own stupid pricing of the RX7900XT. They still could have increased pricing generation on generation and probably gotten away with it!