The effect of turning ReBAR on isn’t consistent across all games, and you certainly don’t need it to run the games, but considering how competitive the new Arc GPU is with Nvidia and AMD’s best midrange options, it’s worth turning it on to make the most of the new cards - and if you can’t, you may be better off with one of the alternatives.ĪMD’s integrated graphics might beat the most popular GPU on SteamĪMD Ryzen 9 7950X3D vs. However, the difference is quite stark, enough that in our review of the A770, we agreed with Intel that ReBAR is a must if you’re going to play games on an Arc GPU. The result for Nvidia and AMD graphics cards is a slight uplift in performance, and the same is true for Intel’s Arc cards. Intels Arc Alchemist desktop graphics cards are getting cheaper and cheaper across the globe, with one model now hitting US120 at a major US retailer. That reduces memory bottlenecks and lets both the CPU and GPU work at peak performance, thereby improving real-world performance in turn. ReBAR effectively gives the CPU access to the whole GPU memory as and when it needs it, rather than smaller portions of it. Even AMD took a jab at the Arc A370M GPU by posting benchmarks online that suggested the Intel part was far from being able to keep up with the Radeon 6500M despite packing more transistor logic. Resizeable BAR is a feature in modern graphics introduced by Nvidia as a counter to AMD’s implementation of Smart Access Memory - which is essentially the same feature. As such, frequency and voltage are constantly changing. Without it, the new Arc GPUs won’t perform anywhere near as well as they should. In fact, it also recommends only Intel 10th-generation and newer CPUs use Arc GPUs too, as, like Ryzen 3000, that is the oldest generation of Intel CPU where ReBAR is supported. This isn’t just a way for Intel to limit the potential market for AMD CPU owners - as if it would want to sell fewer GPUs. This AMD GPU from 2021 beats the RX 7900 XTX and the RTX 4080ĪMD Ryzen Master has a bug that can let someone take full control of your PC ![]() ![]() Here’s how you can get The Last of Us for free from AMD
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