Intel GPU boss Raja Koduri sat down with Ryan Shrout and Tom Petersen to share his thoughts on Arc GPU development and how it ended up. The team is now eagerly awaiting feedback, which is confirmed tomorrow.
Koduri shares his experience bringing the Arc Alchemist architecture to market during the complicated times of the COVID-19 pandemic, with some teams working from home and others tuning GPUs in labs. They also talk about software optimization for GPUs, and specifically APIs like DirectX11, APIs that Arc GPUs typically fall short of.
Working on Arc Alchemist was difficult, confirms the head of Intel AXG, but Koduri never expected it to be so difficult. It will be a journey for a company as large as Intel, but they will get there, he says.
The Arc GPU has a lot of juice left, but it will take some time to develop software that can take advantage of it. Koduri explained that he likes to compare GPUs using microbenchmarks, testing very specific workloads, rather than complex synthetic or gaming benchmarks.
In this case, he says that the Arc GPUs have much higher single-precision pixel accuracy and processing power than the competition (A770 vs. RTX3060), but also struggle with “copying system bandwidth to the GPU” or “vertex buffer speed.” These anomalies are why Intel Arc GPUs can perform less well than competing products.
Intel’s work on the GPU drivers will not only be needed for the Alchemist GPU, but also the Battlemage that will come later. The bulk of Intel’s silicon team is now working on the Battlemage GPU, which is said to be performing significantly better than Alchemist already during its development.
Intel has confirmed that reviews of the Arc A770/A750 Limited Edition will be published tomorrow. As always, we’ll post a summary of the reviews.