384-bit bus for AMD’s next flagship Radeon?

384-bit bus for AMD's next flagship Radeon?

384-bit bus for AMD’s next flagship Radeon?

Kepler, a well-known enthusiast and leaker of the hardware industry on Twitter, analyzed the code of the new ones driver AMD per Linux finding a lot of information on the next top of the range of the family Radeon which make us anticipate much higher performance than the current RX 6950 XT.

We leave immediately from the bus. To the line MCD_INSTANCE_NUM the number is shown 6, which would confirm the presence of six memory controllers. By doing a simple multiplication, assuming that each controller is a 64 bit (2 32-bit channels), the bus should then go up to 384 bit compared to the 256 bits of the current top of the range.

It has been rumored for some time, then, that the new video card has un design based on multiple chiplets, for a total of seven dies: main one with cores (rumored to be 12288 core against the 5120 of the 6950 XT) and six dedicated to cache and interfacing with GDDR6 memory. Assuming each die has 32MB of cache, this would bring the overall cache (InfinityCache) to 192 MBwell over (+ 50%) i 128 MB currently installed on the 6950 XT.

There are those who do not rule out that it even reaches 384 MB via 3D V-Cache technology. With a 384-bit bus and 18 Gbps GDDR6 memory, the bandwidth of the next top of the range could reach 864 GB / s, 50% more than the RX 6950XT and without counting the “boost” given by Infinity Cache. The top of the range of the RX 7000 series could therefore touch a bandwidth of 1 TB/svalue achieved by the current RTX 3090 Ti.

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The technical specifications, as well as the design, seem to paint a really interesting video card, provided that AMD manages to completely fill the gap with NVIDIA in the management of ray tracing. It is evident that all this will go on later related to the price to understand how the new top of the range will compare with the GeForce video cards of the series RTX 4000.




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