Some 4gb radeon rx 480 actually have 8gb of vram

The Radeon RX 480 arrives in an 8 GB version of video memory and in a 4 GB memory version, the latter is the most interesting in terms of price / performance ratio and could be even more interesting after it has been known that many cards that They will be sold with 4 GB. They actually hide 8 GB inside.

4GB Radeon RX 480 may have half of its memory disabled via BIOS and would be mutable

The Radeon RX 480 uses in its 4 GB version of memory chips at a speed of 7 Gbps, a figure lower than the 8 Gbps used in the 8 GB memory models. 7Gbps chips are in short supply so some assemblers are going to use 8Gbps chips to build their 4GB models.

These 4 GB models with 8 Gbps chips actually have 8 GB of memory, but half of this is disabled through the BIOS in order to offer a product with less memory and cheaper. This means that by modifying the BIOS it should be possible to unlock the total amount of memory, so we would have an 8 GB card for the price of a 4 GB card.

The real problem will be knowing which of the 4 GB cards use 8 Gbps memory chips and are mutable, and which use 7 Gbps chips and are not mutable, hopefully the 7 Gbps versions will be cheaper but nothing It is safe. This situation has taken assemblers by surprise so that some of them could delay the arrival of their 4 GB memory cards to be able to use the 7 Gbps chips without supply problems.

Recall that the custom versions of the Radeon RX 480 will be able to achieve much higher frequencies.

Source: legitreviews