AMD’s Weaker Radeon RX 6000 Series GPU Reportedly Has Same CU/Core Count as Current Flagship

Image: AMD

A user on r/AMD has shared alleged data pertaining to AMD’s Navi 22 or Navi 23 GPU, “Navy Flounder.” Following a bit of simple math, the parameters allude to a lower-ranged Radeon RX 6000 Series graphics card that features 40 Compute Units and 2560 stream processors. This happens to be a perfect match for AMD’s current flagship, the Radeon RX 5700 XT.

There’s a disparity in memory specifications, however. While the Radeon RX 5700 XT (and its Anniversary variant) sports a 256-bit memory interface, the Navy Flounder will supposedly swim with a lesser, 192-bit one.

“The number of CUs can be found by multiplying the first three values (so 40 for Navy Flounder),” stblr noted. “Another interesting value is gc_num_tccs, which is the number of texture channel caches and is generally related to the memory bus width (for Navy Flounder it would mean 192-bit), though there are exceptions.”

There are plenty of puzzle pieces missing, but we’d like to think that AMD’s RDNA 2 GPUs will offer surprising performance gains over the current lineup. The company will tell us a lot more during its Radeon event, which is slated for October 28.

ParameterNavi 10Navi 14Navi 12Sienna CichlidNavy Flounder
gc_num_se21242
gc_num_cu_per_sh1012101010
gc_num_sh_per_se22222
gc_num_rb_per_se88844
gc_num_tccs168161612
gc_num_gprs10241024102410241024
gc_num_max_gs_thds3232323232
gc_gs_table_depth3232323232
gc_gsprim_buff_depth17921792179217921792
gc_double_offchip_lds_buffer1024512102410241024
gc_wave_size3232323232
gc_max_waves_per_simd2020201616
gc_lds_size6464646464
num_sc_per_sh11111
num_packer_per_sc22244

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