Today we are looking like crazy for an increase in performance during the game and in the face of this, we find graphics that are still too expensive. Therefore, we have to look for alternatives to take advantage of what we have, and this is where the technology of Nvidia call resizable BAR. He was born to compete AMDSAM and its function is essentially remove the bottleneck between CPU and GPU. We now know that GPUs Intel BOWthey will only support the resizable bar when accompanied by a processor Intel of 10th, 11th Yes 12th generation.
Relatively recently, we know that Intel launched its first desktop gaming graphics card in China, the so-called Intel Bow A380. The company itself has already confirmed its data, knowing that it will have a chip ACM-G11 with 8-core Xe at a frequency of 2.00GHz which can be combined with 3 GB of memory GDDR6 with a memory interface 96 bit and a bandwidth of 192 GB/s. Also, we now know that the Intel Arc GPU support page is now live, bringing us this surprise.
Intel Arc is only compatible with Resizable BAR if you have an Intel processor of 10th generation or more
Here we are disappointed. and it is that although the graphics card Arc Intel It is compatible with all motherboards with interface PCIe generation 3.0technology resizable BAR It will only be available for the latest 3 Intel platforms. Thus, we are left with the need to have minimum a processor Intel Comet Lake to take advantage of this technology.
11th Gen Intel Rocket Lake and 12th Gen Intel Alder Lake are also supported, so it stands to reason that Raptor Lake will also offer support. Now what is very striking is the absence of a compatibility list with amd in a technology also present although with another name.
And it is that, Resizable BAR was NVIDIA’s answer to combat the Intelligent access memory or SAM, from amd. The green version has come down to us being only compatible with GPUs from the company itself, although we are now seeing Intel using it for marketing. The question then is: to what extent are we interested in resizable BAR?
NVIDIA’s alternative to increase the performance of its GPUs was compatible with AMD Ryzen
It’s been a while since the two companies’ technologies were announced claiming to boost performance. AMD was the first to announce its version, while NVIDIA was quick to show off theirs. Resizable BAR or ReBAR aims to reduce, or even eliminate, the neck between CPU and GPU.
It works by removing the restriction of 256 MB by block size of textures, which makes CPU, RAM and GPU with VRAM to have access to full PCIe bus. This ensures that the components operate without the limit imposed by the PCIe bus, making transfers much faster.
The idea on paper was very good, eliminating that 256MB limit, small transfers that could force a higher CPU usage. However, in reality and since this technology was announced in 2021virtually no cases have been observed where the 10% extra return.
What is curious is that if we accede to the original requirements of NvidiaAMD Ryzen processors, as well as their chipsets 400 and 500, were completely compatible. Let us now return to the requirements imposed by IntelARC and, indeed, the AMD Ryzen are incompatible. We are therefore faced with an Intel that is betting everything on itself, refusing the support of its competitor AMD in something like that.
Probably, over time, AMD Ryzen will support the technology, although, as already mentioned, in practice it has not been so revolutionary. Not to mention that really, concretely, for the moment Intel has not launched its GPUs on the market.