Both cards share an identical foundation: the same base clock of 2295 MHz, the same 8960 shading units, 280 TMUs, 96 ROPs, and identical memory speeds of 1750 MHz. This means the vast majority of their raw compute architecture is equivalent, and in practice, workloads that don't push the GPU to its thermal and power limits will yield virtually indistinguishable results.
The meaningful separation emerges at boost. The Zotac Gaming AMP Extreme Infinity holds a 30 MHz advantage in GPU turbo (2512 MHz vs. 2482 MHz), which cascades into slightly higher derived metrics: a pixel rate of 241.2 GPixel/s versus 238.3, a texture rate of 703.4 GTexels/s versus 695, and floating-point throughput of 45.02 TFLOPS versus 44.48. In real-world terms, this roughly 1.2% clock advantage is too small to produce a perceptible framerate difference in gaming, but it does indicate the Zotac is binned or tuned slightly more aggressively out of the box.
In this performance group, the Zotac AMP Extreme Infinity holds a marginal edge purely on paper, thanks to its higher boost clock and the downstream throughput gains it produces. However, the gap is so narrow that it would fall within the margin of real-world variance — thermals, driver behavior, and power delivery will matter more than this 30 MHz difference in daily use. Buyers should weight other factors — cooling solution, acoustics, price, and build quality — more heavily than this slim performance delta.