NVIDIA RTX A4000 16G Single-slot graphics card

Single-slot professional GPU

The NVIDIA RTX A4000 16G fits a full Ampere workstation GPU into a 112 mm by 241 mm single-slot card. It targets engineers, designers and video editors who need certified drivers and ECC memory inside compact chassis or multi-GPU render nodes. Four DisplayPort 1.4a outputs drive up to four 4K displays at 120 Hz or two 8K panels at 60 Hz. The 16 GB GDDR6 frame buffer with ECC protects long compute runs from silent data corruption.

Upgrade from Pascal or Turing workstation cards

Moving from a Pascal-era Quadro P4000 or Turing RTX 4000 adds 6144 CUDA cores, 192 third-generation Tensor cores and 48 second-generation RT cores. Single-precision throughput reaches 19.2 TFLOPS while ray-tracing workloads hit 37.4 TFLOPS. The 256-bit memory bus delivers 448 GB/s bandwidth, removing the bottleneck that limited texture-heavy scenes on 160-bit predecessors. The jump is worth it when viewport interaction, GPU light baking or AI denoising stall on 8 GB cards.

16 GB GDDR6 with ECC headroom

The 16 GB capacity holds multi-million-polygon assemblies, 8K timeline caches and large batch-render frames without paging to system RAM. ECC corrects single-bit errors automatically, keeping overnight renders stable. At 448 GB/s the bus feeds the 192 Tensor cores for 153.4 TFLOPS of AI compute, accelerating optiX denoising and inference previews. Complex scenes exceeding 16 GB or sustained double-precision workloads will still require a higher-tier board.