Both the Gigabyte Gaming OC and the Manli Nebula share the same RTX 5080 silicon foundation, evidenced by their identical base clock of 2295 MHz, matching shader counts (10,752 units), TMU and ROP configurations (336/112), and equal memory speed of 1875 MHz. This common base means both cards deliver the same theoretical ceiling under sustained, thermally-constrained workloads — the real divergence lies in how aggressively each card boosts above that floor.
The critical differentiator is the GPU boost clock: the Gigabyte Gaming OC reaches 2730 MHz versus the Manli Nebula's 2617 MHz — a gap of 113 MHz, or roughly 4.3%. This directly cascades into every throughput metric: the Gaming OC posts a floating-point performance of 58.71 TFLOPS against the Nebula's 56.28 TFLOPS, a texture rate of 917.3 GTexels/s versus 879.3 GTexels/s, and a pixel fill rate of 305.8 GPixel/s versus 293.1 GPixel/s. In practice, that ~4% boost headroom translates to a modest but measurable frame-rate advantage in GPU-bound scenarios, particularly at high resolutions where the texture and pixel pipelines are under sustained pressure.
The Gigabyte GeForce RTX 5080 Gaming OC holds a clear, if modest, performance edge in this group. Both cards support Double Precision Floating Point, so professional compute workloads are equally capable on either. However, for gaming and general GPU throughput, Gigabyte's higher factory overclock gives it a consistent lead across all peak-performance metrics. Users prioritizing maximum out-of-the-box performance should favor the Gaming OC; the Manli Nebula remains competitive but is the lower-clocked option of the two.
