Over the weekend many different Reddit users discovered that AMD could pull out as many as five Radeon RX 5000 series SKUs from their upcoming 7nm “Navi 14” GPU. These Reddit users went over thousands of lines of code to AMD’s open-source GPU driver files to find three desktop SKUs and two mobile SKUs. The Navi 14 silicon is rumored to feature 24 RDNA compute units which make up its 1536 stream processors and a possible 128-bit wide GDDR6 memory interface.
Starting with the desktop SKUs, there is the “Navi 14 XTX” which would be the Radeon RX 5500 XT. It is unknown if this variant will completely max out the Navi 14’s 24 CUs, but it does have the highest gaming engine clock at 1717 MHz. Next is the “Navi 14 XT” or Radeon RX 5500. This variant is known to have 22 RDNA compute units, which works out to 1408 stream processors and up to 8GB of GDDR6 memory. The gaming clock for it is set at 1670 MHz. Finally there is the “Navi 14 XL” or the Radeon RX 5300. The 5300 series could feature lower CU counts and possibly cheaper GDDR5 memory. This SKU has a peak frequency of 1448 MHz.
Now on to the mobile SKUs, there is the “Navi 14 XTM” or Radeon RX 5500M. It will have the same core-config as the desktop RX 5500, but lower clock speeds for more aggressive power management. Its game clock will be set at 1448 MHz. There will also be a RX 5300 series mobile SKU. The “Navi 14 XLM” or Radeon RX 5300M, which should have the same core-config as the Radeon RX 5300, but with a lower clock speed of 1181 MHz.