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Home Nvidia

NVIDIA will introduce AMD Smart Access Memory analog that will accelerate Ampere on any platform

NVIDIA will introduce AMD Smart Access Memory analog that will accelerate Ampere on any platform

AMD introduced Smart Access Memory technology during the announcement of Radeon RX 6000 graphics cards. The bottom line is that if in ordinary Windows-based PCs processors can simultaneously access only part of the graphics memory (VRAM), then it can expand the data channel, allowing the processor to use the entire video memory array at once and eliminate a potential bottleneck, achieving increased performance …

Nvidia
Nvidia

AMD has published benchmarks for the Radeon RX 6000, which show the performance gains by using Smart Access Memory in conjunction with the latest Ryzen 5000 series processors. But NVIDIA already has something to do with this advantage. According to a statement from the company to Gamer’s Nexus, it will introduce a similar feature that will improve the efficiency of transferring data between the GPU and the processor. In fact, in the NVIDIA lab, this functionality is already working on Ampere graphics cards.

In addition, NVIDIA claims that its technology will be universal and will be able to work equally well with Intel and AMD processors, including through the PCIe 3.0 bus, while AMD’s solution requires an AMD Ryzen 5000 series processor, a motherboard on the X570 chipset and the Radeon RX 6000 graphics accelerator.

The description says that Smart Access Memory allows the CPU and GPU to exchange information over a wider PCIe channel. The technical details are unknown, and AMD simply says that the CPU and GPU are usually limited to a 256MB “aperture” for data transfer, which makes game developers’ hands tied, and also requires frequent switching between the processor and main memory if the data exceeds this limit. As a result, efficiency drops, and productivity decreases. Smart Access Memory removes that barrier, AMD says.

This description is like changing the BAR size in PCIe – a standard feature described in the PCIe specifications, according to NVIDIA. And if the graphics processor supports it, then you can increase performance by simply adjusting the appropriate parameter in the BIOS of the video card and motherboard. NVIDIA said its GPUs support this feature, although it requires activation. As for processors, any Intel or AMD chip that works with the PCIe bus should be able to enable this technology.

Perhaps AMD will lower the processor and motherboard requirements in the future if NVIDIA actually introduces similar functionality across all platforms. For now, NVIDIA says its early testing shows similar performance gains over AMD Smart Access Memory and that a similar feature will be included in future firmware updates. However, the company has not announced a release date for this update.

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