L4 vs RTX A4000

The FP16 dense figure of 121 TFLOPS on the L4 exceeds any corresponding dense measurement available for the RTX A4000 while the FP16 sparse figure of 242 TFLOPS on the L4 exceeds the 153.4 TFLOPS sparse figure on the RTX A4000. This delta indicates that the L4 can process larger batch sizes during inference when sparsity is enabled and can sustain higher throughput in dense FP16 workloads without requiring additional hardware. The FP32 figure of 30.3 TFLOPS on the L4 compared to 19.2 TFLOPS on the RTX A4000 shows improved single precision capacity for scientific computing tasks. Memory bandwidth of 448 GB/s on the RTX A4000 versus 300 GB/s on the L4 allows the RTX A4000 to move data faster per second which can support modestly larger batches in bandwidth limited scenarios despite lower overall compute figures.

The L4 suits environments that prioritize power efficiency because its TDP of 72W is half the 140W TDP of the RTX A4000. Workloads that require the full 24 GB VRAM capacity and FP16 dense performance of 121 TFLOPS benefit from the L4 over the RTX A4000.

The RTX A4000 suits workloads that depend on higher memory bandwidth of 448 GB/s to reduce data movement stalls. Tasks that can utilize the FP16 sparse performance of 153.4 TFLOPS without needing dense FP16 measurements find the RTX A4000 adequate.