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RTX A4000 16GB has 50% less memory than RTX PRO 4500 Blackwell Server Edition 32GB (16 GB vs 32 GB). Its memory bandwidth is 44% less (0.448 vs 0.8 TB/s). In the cloud, the median on-demand RTX A4000 16GB price is $0.76 per GPU-hour against $0.92 for the RTX PRO 4500 Blackwell Server Edition 32GB. Per gigabyte of GPU memory, that is $0.048 vs $0.029 per hour.
Manufacturer figures as recorded by Kovara. Higher memory and bandwidth are highlighted; neither is a benchmark of your workload.
| RTX A4000 16GB | RTX PRO 4500 Blackwell Server Edition 32GB | |
|---|---|---|
| Manufacturer | NVIDIA | NVIDIA |
| Architecture | Ampere | Blackwell |
| Memory | 16 GB GDDR6 | 32 GB GDDR7 |
| Memory bandwidth | 0.448 TB/s | 0.8 TB/s |
| Power (TDP) | 140 W | 165 W |
| Form factor | PCIe single-slot | PCIe Gen5 single-slot FHFL |
Public offers Kovara tracks, normalised to US dollars per GPU-hour. Prices use on-demand terms where available; spot and reserved offers are on each GPU’s price pages. Lower is highlighted.
| RTX A4000 16GB | RTX PRO 4500 Blackwell Server Edition 32GB | |
|---|---|---|
| Lowest price | $0.15 | $0.92 |
| Median price | $0.76 | $0.92 |
| Highest price | $0.76 | $0.92 |
| Median per GB of memory | $0.048 | $0.029 |
| Public offers (all terms) | 6 | 5 |
| Providers | 3 | 2 |
Lowest tracked price per provider. Open a provider to see every offer, region and term.
Right now the cheapest on-demand RTX A4000 16GB Kovara tracks is $0.15 per GPU-hour and the cheapest RTX PRO 4500 Blackwell Server Edition 32GB is $0.92. Medians are $0.76 and $0.92. The cheaper GPU per hour is not always cheaper per job: a faster or larger GPU can finish sooner or need fewer units.
The RTX PRO 4500 Blackwell Server Edition 32GB has more memory: 32 GB against 16 GB. Memory decides which models and batch sizes fit on one GPU.
No. This page compares manufacturer specifications and public prices. Real performance depends on the model, precision, software and interconnect. Kova can help you estimate cost for a specific workload.