Soon the new Intel Arc A770 and A750 will begin to be sold, the high-end of this generation of Alchemist-based Intel Arc graphics cards will arrive on the same day as the NVIDIA RTX 4090, on October 12. We have already been able to know some performance data about what awaits us with this first generation of Intel Arc graphics cards, but without ResizableBAR this performance is affected reducing almost 25%.
Some days ago AMD Ryzen processors from the 3000 series were added as a requirement along with boards with AMD chipset from the 500 series. Basically the requirements are equipment that support PCIe 4.0 and ResizableBAR technology. But from TechPowerUP they tried this card in teams without ResizableBAR and on older PCI 3.0ResizableBAR being a requirement Almost indispensable in order to take advantage of the performance of the Alchemist-based Intel Arc.
The tests performed obtain a yield of 76-80% when ResizableBAR is not used, something that those of Intel have insisted on from the first hour. However, using an Intel Arc card on an older PCIe 3.0 bus does not limit performance in a considerable quantity, only 2% less using this older bus. The mix of not using ResizableBAR together with PCIe 3.0 makes performance drops by up to 30%.
So you can use an Intel Arc graphics if your bus is older, but you have ResizableBAR technology. Without this technology is better don’t buy one of these intel arc graphics since its performance looks greatly reduced.
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Juan Antonio Soto
I am a Computer Engineer and my specialty is automation and robotics. My passion for hardware began at the age of 14 when I gutted my first computer: a 386 DX 40 with 4MB of RAM and a 210MB hard drive. I continue to give free rein to my passion in the technical articles that I write in Geeknetic. I spend most of my free time playing video games, contemporary and retro, on the more than 20 consoles I have, in addition to the PC.
