Understanding Shared GPU Memory

• Shared GPU Memory: This is a portion of the regular RAM (system memory) set aside by your computer to act as video memory when the dedicated graphics memory is insufficient.

• Dedicated Graphics Card:

  • Has its own specialized RAM called GDDR memory.
  • Used primarily for graphics-intensive applications or games.

• Memory Usage Hierarchy:

  1. First, the computer uses the faster GDDR memory from the dedicated graphics card.
  2. Once the GDDR memory is depleted, it switches to using shared GPU memory.

• Performance Impact:

  • Shared GPU memory is sourced from slower system RAM.
  • Using shared memory can lead to reduced performance and slower app/game execution, but it's a fallback option if no dedicated GDDR memory is available.

• Conclusion: While shared GPU memory isn't as optimal or fast as dedicated video memory, it provides a necessary backup to prevent memory shortages.

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