HP 490565-001 Quadro NVS 450 512MB GDDR3 PCI Express x16 workstation graphics card

Quadro NVS 450 Multi-Display Workstation Card

The HP 490565-001 Quadro NVS 450 provides four DisplayPort outputs driven by dual GPUs, each with 256MB of GDDR3 memory on a 64-bit interface. It targets enterprise IT environments that require certified stability across four 2560 x 1600 displays from a single PCI Express x16 slot. The fanless cooler ensures silent operation in dense workstation deployments.

Sustained Load Behaviour

The dual-GPU architecture splits the 512MB total frame buffer into two 256MB pools, so each GPU manages its own 64-bit memory path during extended multi-monitor workloads. Driver-level NVIEW and Mosaic Mode distribute desktop composition across both processors, keeping frame times consistent when all four outputs are active. The passive heatsink relies on case airflow rather than a fan curve, so thermal performance scales with chassis ventilation.

128-Bit Aggregate Memory Interface Decides Fit

The card presents a combined 128-bit bus width, yet each GPU is limited to a 64-bit channel feeding its local 256MB GDDR3 allocation. Applications that require a single large frame buffer or unified memory pool larger than 256MB per GPU will not benefit from the total 512MB figure. Buyers needing more than four displays or a single GPU with a wider memory path must select a different model.