At the foundation, both the Gainward Ghost OC and the Gigabyte WindForce OC share an identical silicon configuration: 3840 shading units, 120 TMUs, 48 ROPs, and a base GPU clock of 2280 MHz. This means their theoretical throughput ceilings are defined almost entirely by how aggressively each card boosts, and both support Double Precision Floating Point, which is relevant for compute workloads alongside gaming.
The sole but meaningful differentiator in this group is the GPU turbo clock. The Gainward Ghost OC reaches 2535 MHz versus the Gigabyte WindForce OC's 2512 MHz — a 23 MHz advantage. While that gap sounds modest in isolation, it directly explains why the Gainward edges ahead across every derived throughput metric: 19.47 TFLOPS vs 19.29 TFLOPS in floating-point performance, 304.2 vs 301.4 GTexels/s in texture fill rate, and 121.7 vs 120.6 GPixel/s in pixel output. In practice, these differences are unlikely to produce measurable frame-rate gaps in gaming, but they do signal that Gainward has binned or tuned its card to a slightly higher operating point out of the box.
Overall, the Gainward Ghost OC holds a narrow performance edge in this group, strictly by virtue of its higher boost clock. The Gigabyte WindForce OC is functionally equivalent in architecture and memory bandwidth, making it a near-tie in real-world scenarios — but if on-paper peak throughput matters to you, the Gainward is the marginally faster card as shipped.