The A18 and A18 Pro on the new iPhone 16 series deliver identical CPU performance, with both chipsets significantly outscoring the Snapdragon 8 Gen 3 on Geekbench. The Qualcomm chipset already performs better than the A17 Pro, and it appears the A18 Pro doesn't necessarily bridge that gap either.
As tested by S White Review, the A18 Pro manages a score of 4410 on 3DMark's Wildlife Extreme Unlimited test. The vanilla A18 scores 3829, while last year's A17 Pro does 3665. All of those pale in comparison to the Snapdragon 8 Gen 3, though, which scores 5056. The Dimensity 9300+ is even more impressive, too, with a score of 5440.
It's an identical story on GFXBench's Aztec Ruin 1440p test, where the A18 Pro only records a frame rate of 73 FPS, much weaker compared to the Snapdragon 8 Gen 3's 94 FPS. The Apple chipset consumes less power overall, though, with a power draw of 11.5 W versus the Qualcomm chipset's 13.7 W.
All things considered, the Apple A18 Pro offers worse GPU performance than the Snapdragon 8 Gen 3. That's exacerbated, of course, by the fact that the A18 Pro's actual rival is the upcoming Snapdragon 8 Gen 4. The Qualcomm chipset is tipped to feature a significantly upgraded GPU relative to the Qualcomm 8 Gen 3's Adreno 750, further widening the gap between Qualcomm's best and the A18 Pro.
On a side note, while the A18 Pro GPU fails to catch up to the Snapdragon 8 Gen 3's in terms of raw power, the Apple chipset does perform better in ray tracing tests like 3DMark's Solar Bay.