As we get closer and closer to a potential reveal for new Navi parts (and with just two products in the stack right now, it’s high time), more details are emerging about Navi 14, the part that’s likely to be called the Radeon RX 5600. The latest find comes from a user on the forum for German site 3DCenter.
User Berniyh was able to glean some more details about Navi 14 by datamining the Linux graphics driver for AMD parts. The driver code mentions a function called “num_sdp_interfaces.” This appears to correlate to the width of the memory bus. Navi 10, Navi 12, and Navi 14 are all seen here. Both Navi 10 and Navi 12 (the likely “2080 Ti killer” have a “num_sdp_interfaces” of 16. Meanwhile, Navi 14 or the RX 5600 has a count of 8. 3DCenter believes that this implies a halving of the memory bus. This would make sense for a midrange part. GDDR6 paired to a 128-bit memory bus would deliver between 250 GB/S and 300 GB/S of bandwidth. Not a lot but perfectly adequate for handling 1080p gaming with ease.
An earlier revelation by 3DCenter indicated that the Radeon RX 5600 would feature 1536 shader cores, at least its fully-enabled avatar. Putting two and two together, we now have a good idea of how the upcoming Little Navi parts will perform. The top-end,
The bigger Navi 12 or the RX 5800 graphics card will come with the same 256-bit bus as the RX 5700 series. This means that they’ll probably feature more powerful shading capabilities, and there’s a very big chance that it’ll almost certainly compete with the GeForce RTX 2080 Super than the top-dog and flagship, the RTX 2080 Ti.