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I couldn't find the exact video, but Digital Foundry did a great breakdown on the performance bottlenecks in Unreal 5. They showed how disk speed directly influ
by smoldesu 4y ago
I couldn't find the exact video, but Digital Foundry did a great breakdown on the performance bottlenecks in Unreal 5. They showed how disk speed directly influenced asset streaming, and it was pretty interesting to watch. Their HDD-speed drive choked constantly when running the UE5 demo, but a SATA SSD had enough bandwidth to handle the assets.
So, it's kinda a weird spot to be. Not every scene was streaming 250mb/s of assets, but when it did the worse drives took a notable hit to performance.
- adgjlsfhk1 4y agoAre these types of assets typically compressed?
- smoldesu 4y agoDepends on the system, AFAIK. Modern consoles have so much disk bandwidth that compression is completely unnecessary, but PS5 and Xbox both have APIs for streaming and decompressing compressed assets. I haven't seen any titles using them, and it's doubtful that we'll reach a point where it's required with modern systems. That being said, compression would be an interesting avenue to explore for SD cards and SATA drives. The performance add can be pretty marginal, but sometimes that's just what these drives need.