ThinkSystem NVIDIA Tesla P40 is a dual-slot 10.5-inch PCIe 3.0 card based on a high-end NVIDIA Pascal graphics processing unit (GPU). It uses a passive heat sink for cooling. P40 has 24GB GDDR5 memory and a 250 W maximum power limit. With 47 TOPS (Tera-Operations Per Second) of inference performance and INT8 operations per GPU, a single server with 8 Tesla P40s delivers the performance of over 140 CPU servers.