ROG Astral RTX 5090 OC vs GeForce RTX 5090
A side-by-side readout for cuda / stream cores.
Understanding cuda / stream cores
CUDA cores are NVIDIA's general-purpose shader units. They handle raster rendering, compute, and general parallel workloads.
Cross-generation comparison
CUDA cores from different architectures (Ampere vs Ada vs Blackwell) are not equivalent — Blackwell cores deliver more work per clock thanks to architectural improvements. Within the same generation, CUDA count is a strong predictor of performance.
Related units
- Tensor Cores — accelerate matrix math for DLSS, ML inference.
- RT Cores — accelerate ray traversal.
- CUDA Cores — everything else (raster, general compute).
A modern RTX card lists all three. Tensor and RT counts scale roughly with CUDA count within a generation.
This matchupIn this spec, ROG Astral RTX 5090 OC and GeForce RTX 5090 are effectively tied at 21760 — buyers can treat them as equivalent on cuda / stream cores alone.
What is cuda cores?
NVIDIA's parallel shader processors. Each CUDA core executes one floating-point or integer operation per clock; total count is a rough indicator of raster throughput within a generation.
Read the full CUDA cores explainer →Other specs on this comparison
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