B300 vs L4

The FP16 dense figure of 2250 TFLOPS on the B300 exceeds the 121 TFLOPS dense FP16 on the L4 by a ratio of 18.6 to 1 which supports larger model training steps and higher throughput inference when sparsity is not applied. Memory bandwidth of 8000 GB per s on the B300 versus 300 GB per s on the L4 permits substantially larger batch sizes during both training and inference workloads. FP32 performance at 75 TFLOPS on the B300 compared with 30.3 TFLOPS on the L4 further widens the gap for precision sensitive scientific tasks while the 1400 W TDP on the B300 versus 72 W on the L4 requires different power and cooling provisions.

The B300 suits large scale LLM training sessions that require 262 to 288 GB VRAM and 2250 TFLOPS FP16 dense throughput to accommodate models that exceed the 24 GB capacity of the L4. Workloads needing 8000 GB per s bandwidth and NVLink interconnect also favor the B300 over the PCIe 4.0 interface of the L4.

The L4 fits power constrained environments where 72 W TDP and PCIe form factor allow dense deployment without the 1400 W requirement of the B300. Inference tasks that fit within 24 GB VRAM and 121 TFLOPS FP16 dense performance benefit from the lower power draw of the L4.