One of the differences between Sapphire Nitro and Sapphire Nitro+ (at least
RX470/RX480 based) graphics cards is that Nitro+ cards have the dual BIOS switch: you can choose between faster ("Default") and slower ("Silent") modes.
Although the cards share the same name, there are some performance differences depending on the SKU.
Also note that the RX470 is part of the RX470-RX570-RX580 2048SP models (with 2048 stream processors). While the RX480 is part of the RX480-RX580-RX590 GME models (with 2304 stream processors).
Sapphire Nitro RX470 8GD5:
11256-17: Engine clock: 1140 (1236 Boost) MHz, Memory clock: 1750 MHz
11256-26: Engine clock: 1140 (1216 Boost) MHz, Memory clock: 1750 MHz
Sapphire Nitro+ RX470 8GD5:
11256-02: Engine clock: 1121 (1260 Boost) MHz, Memory clock: 2000 MHz in "Default"; 926 (1206 Boost) MHz, Memory clock 2000 MHz in "Silent"
11256-07: Engine clock: 1121 (1216 Boost) MHz, Memory clock: 2000 MHz in "Default"; 926 (1206 Boost) MHz, Memory clock 2000 MHz in "Silent"
11256-14: Engine clock: 1121 (1216 Boost) MHz, Memory clock: 1750 MHz in "Default"; 926 (1206 Boost) MHz, Memory clock 1750 MHz in "Silent"
Sapphire Nitro RX480 8GD5:
11260-20: Engine clock: 1202 (1306 Boost) MHz, Memory clock: 1750 MHz
11260-23: Engine clock: 1202 (1276 Boost) MHz, Memory clock: 1750 MHz
Sapphire Nitro+ RX480 8GD5:
11260-01: Engine clock: 1208 (1342 Boost) MHz, Memory clock: 2000 MHz in "Default"; 1120 (1266 Boost) MHz, Memory clock 2000 MHz in "Silent"
11260-07: Engine clock: 1208 (1306 Boost) MHz, Memory clock: 2000 MHz in "Default"; 1120 (1266 Boost) MHz, Memory clock 2000 MHz in "Silent"
11260-10: Engine clock: 1208 (1276 Boost) MHz, Memory clock: 2000 MHz in "Default"; 1120 (1266 Boost) MHz, Memory clock 2000 MHz in "Silent"
My RX480 card is the Sapphire Nitro+ RX480 8GD5 with SKU 11260-01 (fastest version of the Sapphire Nitro+ RX480 8GD5).
