Realme C21Y is powered by the Unisoc T610. The processor is Octa core (1.8 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55) that uses architecture and Mali-G52 GPU. It runs on Android v11 operating system with 3 GB RAM and 32 GB ROM.
Realme C21Y has an overall AnTuTu score of 162,658. The benchmark app also gives individual scores for CPU, Memory, GPU, and UX tests. Realme C21Y scored 66,332 for CPU, 38,923 for Memory, for GPU, and 57,403 for UX test.
On Geekbench, Realme C21Y CPU is tested to check the performance of a single core as well as multiple cores in carrying out tasks. The Realme C21Y Geekbench multi-core score is 1,308 and single-core score is 350.
The GFXBench app is used to test the Realme C21Y for graphics (GPU) performance, with two key components: Manhattan and T-Rex. The Realme C21Y GFXBench Manhattan and T-Rex scores are 2,171.0 and 2,521.0, respectively.
PCMark is used to benchmark the Realme C21Y battery performance on real-world tasks. The Realme C21Y PCMark battery performance time is 16h 53m .