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Sunday | March 7, 2021
Re-Size BAR: The “Smart Access Memory” on the Z490?

Re-Size BAR: The “Smart Access Memory” on the Z490?

Through an update of the bios of several Asus Z490 series cards, we discover that the Re-Size BAR (Base Address Register) technology can now be activated in the bios of these cards. This technology, which has been around for some time, is exactly what AMD has been pushing under the name of Smart Access Memory. This “discovery” from TH could therefore allow Intel CPU owners to benefit from a performance boost relatively easily. On an Asus ROG Maximus XII Apex, its use is quite simple, as it is part of the PCI-Express standard specification (it works in PCIe 3.0 / 4.0), so AMD and Nvidia GPUs should take advantage of this technology. The Re-Size Bar function in the BIOS of the Z490 : Re-Size BAR SAM For the time being, in order to take advantage of this technology it will be necessary to use a card from the AMD Radeon RX 6000 family. However, Nvidia should not wait too long to release a software update so that its GeForce RTX 30 Series GPUs, based on the Ampere architecture, can benefit from the use of this technology. According to AMD’s demonstrations, the implementation of this technology on its platforms allows for a performance improvement of up to 11%. It should be noted that with the arrival of the next Intel CPUs compatible with the Z490 in particular, PCIe 4.0 will then be truly functional. It will therefore be interesting to see how a Radeon 6000 behaves in an Intel environment … Find out more on Reddit on this subject. We will keep you informed of our own tests as soon as possible.

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Edited by Calliers

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