My daily searches of ‘Big Navi Linux’ seemed to have finally yielded fruit. According to several different sources, including good ole Reddit, Big Navi specs my have been ‘leaked’ by updates to the kernel itself, as well as ROCm firmware. Big Navi (code name Sienna Cichlid) seems to have 80 CUs and another GPU (code name Navy Flounder) has 40 CUs.
After stealing the table from Reddit, the specs appear to be as follows (Note, the total number of CUs can be found by multiplying the first three numbers together):
Parameter
Navi 10
Navi 14
Navi 12
Sienna Cichlid
Navy Flounder
gc_num_se
2
1
2
4
2
gc_num_cu_per_sh
10
12
10
10
10
gc_num_sh_per_se
2
2
2
2
2
gc_num_rb_per_se
8
8
8
4
4
gc_num_tccs
16
8
16
16
12
gc_num_gprs
1024
1024
1024
1024
1024
gc_num_max_gs_thds
32
32
32
32
32
gc_gs_table_depth
32
32
32
32
32
gc_gsprim_buff_depth
1792
1792
1792
1792
1792
gc_double_offchip_lds_buffer
1024
512
1024
1024
1024
gc_wave_size
32
32
32
32
32
gc_max_waves_per_simd
20
20
20
16
16
gc_lds_size
64
64
64
64
64
num_sc_per_sh
1
1
1
1
1
num_packer_per_sc
2
2
2
4
4
What do you guys think of the potential for Big Navi and the new Flounders Edition?
Moores Law is Dead youtube channel seems to have confirmed this. Recent episode had Wendell on it… Which was a pleasant shock. Quality meets quality. Genuine awesome convo that was.
Is it the same Architecture with ray tracing cores tacked on?
Is the core clock ceiling the same?
This is either going to be a really expensive chip that takes on the 3080 or a budget one that will take on the tier below it
Given AMD’s disappointing GPU history, 3070 competitor is more likely
I would like to see AMD’s 4K checker boarding on desktops though
Would be amazing if AMD competed with Nvidia. With AMD having the consoles, I just don’t see why they would waste resources on trying to compete.
Performance expectations:
The 5700xt is close to 50FPS in 4k (in some titles…), so 4k60 in every title should be feasable, I think.
If it beats the 2080S, I count that as success.
