Adreno-5xx.md

Examples

• 504, 505, 506, 510 with LPDDR3

• 508, 509 with LPDDR4

• 512, 530, 540 with LPDDR4X

• Oculus Quest (Adreno 540)

• Oculus Go (Adreno 530)

References

1. Mesa driver details
2. Inside Qualcomm’s Adreno 530
3. Correction on Qualcomm iGPUs
4. Vulkan features for Adreno 540
5. Game Developer Guides, [webarchive]
6. Adreno 505 Benchmarks

Notes

• Has low resolution Z pass: [1]
  "During the binning pass, a low resolution Z-buffer is constructed, and can reject LRZ-tile wide contributions to boost binning performance. This LRZ is then used during the rendering pass to reject pixels efficiently before testing against the full resolution Z-buffer."

• Has forward pass for fullscreen quad/triangle.

• Starting on A5X GPUs, an LRZ pass happens in binning and can discard tile wide contributions. [5]

• On A5X, GPUs push constants are not recommended. [5]

• On A5X GPUs, one (1) texture per fragment at full rate is equivalent to 16 full precision ALUs. [5]

• Adreno 660 core config:

  • 48 ALU
  • 650 MHz
  • fp64: 15.6 gflops, 1/4 fp32
  • fp32: 62.4 gflops
  • fp16: 124.8 gflops, 2x fp32

Adreno 530:

• has 2 compute queues. [2]
• 1SP: 32x Fp32, 4x SFU; it means sqrt/sin/cos executes in 1/8 rate; int executed in 1/4 rate. [2]