At the foundation, both the Gigabyte WindForce and the PNY OC Dual Fan are built on the same GPU silicon: identical 2280 MHz base clocks, 3840 shading units, 120 TMUs, 48 ROPs, and 1750 MHz memory speed. This means their baseline rendering pipelines and memory bandwidth are equivalent — any real-world divergence between them comes down entirely to how aggressively each card boosts under sustained load.
That divergence, while modest, is consistent and measurable. The PNY OC Dual Fan achieves a 2535 MHz GPU turbo versus the WindForce's 2497 MHz — a 38 MHz advantage that flows directly into every derived throughput metric. The PNY edges ahead in floating-point performance (19.47 vs. 19.18 TFLOPS), texture rate (304.2 vs. 299.6 GTexels/s), and pixel rate (121.7 vs. 119.9 GPixel/s). In practice, these differences translate to roughly a 1.5% theoretical compute advantage — perceptible in benchmarks, but unlikely to be distinguishable in most real gaming workloads.
In terms of a performance edge, the PNY OC Dual Fan holds a narrow but clear advantage, strictly by virtue of its higher factory boost clock. Both cards support Double Precision Floating Point, which is a useful capability for compute workloads, but neither card distinguishes itself there. If raw peak performance from the same GPU generation is the priority, the PNY is the marginally faster card — though buyers should weigh this small lead against cooling solution, acoustics, and price before making a final decision.