I posted details a few pages back.
Here's my post, where I started discussing:
https://forum.beyond3d.com/posts/2178977/
Poster,
@Digidi summarised the driver leaks here:
https://forum.beyond3d.com/posts/2176653/
Poster,
@tinokun made a nice table below:
Code:
Property Navi10 Navi14 Navi12 Navi21Lite Navi21 Navi22 Navi23 Navi31
num_se 2 1 2 2 4 2 2 4
num_cu_per_sh 10 12 10 14 10 10 8 10
num_sh_per_se 2 2 2 2 2 2 2 2
num_rb_per_se 8 8 8 4 4 4 4 4
num_tccs 16 8 16 20 16 12 8 16
num_gprs 1024 1024 1024 1024 1024 1024 1024 1024
num_max_gs_thds 32 32 32 32 32 32 32 32
gs_table_depth 32 32 32 32 32 32 32 32
gsprim_buff_depth 1792 1792 1792 1792 1792 1792 1792 1792
parameter_cache_depth 1024 512 1024 1024 1024 1024 1024 1024
double_offchip_lds_buffer 1 1 1 1 1 1 1 1
wave_size 32 32 32 32 32 32 32 32
max_waves_per_simd 20 20 20 20 16 16 16 16
max_scratch_slots_per_cu 32 32 32 32 32 32 32 32
lds_size 64 64 64 64 64 64 64 64
num_sc_per_sh 1 1 1 1 1 1 1 1
num_packer_per_sc 2 2 2 2 4 4 4 4
num_gl2a N/A N/A N/A 4 4 2 2 4
unknown0 N/A N/A N/A N/A 10 10 8 10
unknown1 N/A N/A N/A N/A 16 12 8 16
unknown2 N/A N/A N/A N/A 80 40 32 80
num_cus (computed) 40 24 40 56 80 40 32 80
Property Navi10 Navi14 Navi12 Navi21Lite Navi21 Navi22 Navi23 Navi31
There was a Tweet by a famous leaker, Yuko Yoshida (@KityYYuko):
Code:
XSX
Front-End: RDNA 1
Render-Back-Ends: RDNA 2
Compute Units: RDNA1
RT: RDNA2
Navi21 Lite is considered XSX. And the driver is comparing it to RDNA1 and RDNA2 GPUs. Front-end for XSX matches RDNA1 - Scan Converters and Packers per Scan Converters (rasterisation); and SIMD waves (CUs) are RDNA1 for XSX and change for RDNA2 GPUs (Navi2x). Navi21 Lite (XSX) has same Render Backends per Shader Engine as RDNA2.
