But it will be a downgrade over the RX6700XT:
1.)Less shaders
2.)Lower memory bandwidth
3.)Less Infinity Cache
4.)PCI-E 8X connection,so more issues on a PCI-E 3.0 system
If it clocked to 3GHZ or higher,it would be similar TFLOPs to an RX6700XT:
AMD Navi 23, 2635 MHz, 2048 Cores, 128 TMUs, 64 ROPs, 8192 MB GDDR6, 2190 MHz, 128 bit
www.techpowerup.com
AMD Navi 22, 2581 MHz, 2560 Cores, 160 TMUs, 64 ROPs, 12288 MB GDDR6, 2000 MHz, 192 bit
www.techpowerup.com
So it might just essentially an RX6700XT with 16GB of VRAM,and maybe a tad better RT performance? But it might be worse off at qHD and 4K because Navi 23 had 1/3 the Infinity Cache of Navi 33. Hence it should be £300 at most.
Navi 31 apparently had some issues according to MLID. The RX7950 series might be using a respun and fixed Navi 31.