Apple M3 Pro vs Apple M3 Ultra
The M3 Ultra delivers 4.4x the FP32 throughput of the M3 Pro (33 vs 7.4 TFLOPS dense). The M3 Ultra also carries 476 GB more memory (512 GB vs 36 GB).
Apple M3 Pro
Full specs →Apple M3 Ultra
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
The M3 Ultra is the newer part: Apple M3, launched in 2025, against the M3 Pro's Apple M3 from 2023. Newer architectures typically add lower-precision formats and better throughput per watt, so check the precision rows your workload actually uses.
Dense throughput for the M3 Pro against the M3 Ultra: FP32 7.4 vs 33 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 36 GB against 512 GB, fed at 150 GB/s versus 819 GB/s. More memory per GPU means larger models fit before you have to shard across cards, which often matters more than raw TFLOPS for inference.
For LLM training and inference, weight the FP8 and FP16 rows and memory capacity most heavily. For scientific and HPC workloads, the FP64 row is the one to read.
Frequently asked questions
Is the M3 Pro faster than the M3 Ultra?
At FP32 precision the M3 Ultra reaches 33 TFLOPS dense against 7.4 TFLOPS for the M3 Pro. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the M3 Pro or the M3 Ultra?
The M3 Ultra carries 512 GB of VRAM versus 36 GB for the M3 Pro. Memory bandwidth is 150 GB/s for the M3 Pro and 819 GB/s for the M3 Ultra.
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