Intel and Nvidia copied AMD - PCI-E Resizable BAR
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The video discusses how AMD’s Smart Access Memory (SAM), aka Resizable BAR, has put pressure on Intel and Nvidia, with MSI showcasing the GE76 Raider Dragon Edition TIAMAT as one of the first laptops to enable this feature. The host explains that Resizable BAR allows the CPU to access the entire GPU memory, similar to how AMD’s Ryzen-Radeon pairing operates, and explores whether Intel and Nvidia can close the performance gap. They present a hands-on test with a high-end MSI notebook, detailing the hardware specs, including a Core i7-10870H, 32 GB of DDR4 RAM, a 1 TB NVMe SSD, a RTX 3080 Max-P, and a 280-watt power brick, under different driver configurations. The video emphasizes that this is an early tech preview and not a full review, noting that results can vary depending on drivers and specific game or workload. In multiple titles and benchmarks, the Resizable BAR option yields mixed outcomes: some games show small gains, others see no improvement, and a few even perform worse, underscoring that enabling SAM/Resizable BAR is not a guaranteed upgrade across the board. The host highlights that AMD’s advantages in some workloads remain, but there is notable potential for improvement as driver support and mobile hardware evolve. The discussion shifts to the broader implications for future laptops, suggesting that smaller, more power-efficient machines could achieve higher performance with Resizable BAR, while larger systems will continue to push the ceiling further. The sponsor segment and MSI’s marketing angle are acknowledged, with the host noting that the technology’s real-world impact will become clearer as more data accumulates and more laptops implement the feature. Overall, the video frames Resizable BAR as a promising concept that has yet to demonstrate universal benefits on Intel/Nvidia hardware, while also hinting at future gains for mobile and desktop configurations as the ecosystem matures.
Topics · technology · hardware · gaming · laptops · performance · cpu · gpu
Questions answered
- What is Resizable BAR and how does it relate to Smart Access Memory (SAM)?
- Resizable BAR is the PCI Express feature that allows the CPU to access the entire memory of a GPU at once, effectively enabling a larger frame buffer transfer and potential performance gains similar to AMD's Smart Access Memory.
- Did Resizable BAR provide consistent performance gains across tested games?
- No, the results were mixed: some titles showed small gains, others were unchanged, and a few performed worse depending on the game and driver configuration.