RTX 5090 vs RTX PRO 6000 Blackwell: which one for AI.
Both are Blackwell GPUs with 1,792 GB/s of memory bandwidth. The difference that matters most for AI is memory: 32GB on the GeForce RTX 5090 and 96GB on the RTX PRO 6000 Blackwell Workstation Edition. That sets the largest model each card loads, and it decides which of our workstation builds each one goes into.
- 32GBGeForce RTX 5090
- 96GBRTX PRO 6000
- 1,792 GB/sbandwidth, both cards
- 575W / 600Wboard power
Specifications side by side
| GeForce RTX 5090 | RTX PRO 6000 Blackwell Workstation Edition | |
|---|---|---|
| Architecture | NVIDIA Blackwell | NVIDIA Blackwell |
| GPU memory | 32GB GDDR7 | 96GB GDDR7 |
| Memory interface | 512-bit | 512-bit |
| Memory bandwidth | 1,792 GB/s | 1,792 GB/s |
| CUDA cores | 21,760 | 24,064 |
| Board power | 575W | 600W |
| Host interface | PCIe 5.0 x16 | PCIe 5.0 x16 |
| GPUs per system, our builds | 1 (JNCS AI 5090) | 1 or 2 (AI PRO); 1, 2, or 4 (AI MAX) |
| Platform, our builds | Ryzen 9000, 64GB to 128GB DDR5 | Threadripper 9000 or Threadripper PRO 9000, registered ECC DDR5 up to 1TB |
Card specifications as published by NVIDIA. Board power is the card's rating; the configurator's power estimate covers the whole system.
What the difference means for AI
Model size
32GB holds a 30B-class model at 4-bit quantization. 96GB holds a 70B model at 8-bit on one card, and two cards hold a 70B model at 16-bit.
VRAM sizing guide →Speed on models that fit
With the same architecture and the same memory bandwidth, the two cards are close on any model that fits in 32GB. The RTX PRO 6000 has about 10% more CUDA cores.
More than one GPU
Our RTX 5090 build is a single-GPU system on a standard circuit. RTX PRO cards go two or four to a system on Threadripper platforms, each with a full PCIe 5.0 x16 link.
Multi-GPU AI workstation →Drivers
RTX PRO cards use NVIDIA's professional RTX Enterprise drivers. GeForce cards use NVIDIA's Game Ready and Studio drivers.
In between: RTX PRO 4500 and 5000
For work that needs more than 32GB per card, or several cards on one circuit.
| GPU | Memory | Bandwidth | Power |
|---|---|---|---|
| RTX PRO 4500 Blackwell | 32GB GDDR7 | 896 GB/s | 200W |
| RTX PRO 5000 Blackwell | 48GB GDDR7 | 1,344 GB/s | 300W |
| RTX PRO 5000 Blackwell | 72GB GDDR7 | 1,344 GB/s | 300W |
| RTX PRO 6000 Blackwell Workstation Edition | 96GB GDDR7 | 1,792 GB/s | 600W |
The RTX PRO 4500 matches the RTX 5090's 32GB at about a third of the power, which matters when four cards share one circuit.
Which to choose
Choose the RTX 5090
Your models fit in 32GB, one GPU is enough, and the system needs to run from an ordinary outlet.
JNCS AI 5090 →Choose the RTX PRO 6000
You need more than 32GB on one card, plan on two GPUs, or want a Threadripper platform with registered ECC system memory.
JNCS AI PRO →Choose four GPUs
Up to 384GB of VRAM in one tower, for training and for serving models to several users.
JNCS AI MAX →Assembly, burn-in, and delivery
Each system is assembled by hand at our shop in Fairport, NY, by a shop that has built computers for more than thirty years.
Fit and power validated
The configurator checks physical fit, memory, PCIe slots, and power on every selection. The power supply is sized automatically to the GPU count and estimated draw, with a 12V-2x6 cable for every GPU.
Burn-in under load
Every system is stress-tested under sustained full load and firmware-updated before it leaves the bench, so the first long job is not the first test.
Windows 11 Pro installed
Windows 11 Pro is installed and updated before shipment.
Warranty and support
Every build carries a 3-year warranty and lifetime technical support from the shop that built it.
Quoting and payment
The configurator shows a price for every part and an estimated total, including assembly, burn-in, and testing, as the build is configured. GPU and memory pricing changes frequently, so a technician confirms GPU availability and final pricing by email, with lead time, typically within 1-2 business days. There is no cost and no obligation to request a quote.
Payment for AI workstations is by ACH bank transfer; credit cards are not accepted for these systems. An invoice with bank details is issued once the quote is approved. Systems ship across the United States from Fairport, NY, with local pickup available.
RTX 5090 vs RTX PRO 6000 questions
Is the RTX PRO 6000 faster than the RTX 5090?
Can I put two RTX 5090s in a workstation?
Which is better for local LLMs?
Is the RTX PRO 6000 worth it over the RTX 5090?
How much power do they need?
How is an AI workstation ordered and paid for?
Related AI workstation pages
RTX 5090 AI workstation
One GeForce RTX 5090, 32GB VRAM, Ryzen 9000, standard 15A circuit.
Read →RTX PRO 6000 Blackwell workstation
One or two RTX PRO Blackwell GPUs, up to 192GB VRAM, Threadripper 9000.
Read →Dual RTX PRO 6000 workstation
192GB of VRAM on two 96GB GPUs, and the circuit it needs.
Read →Local LLM workstation guide
How much VRAM a model needs, and which build provides it.
Read →Image and video generation
VRAM for diffusion models, and one generation queue per GPU.
Read →Multi-GPU AI workstation
Up to four RTX PRO Blackwell GPUs, up to 384GB VRAM, Threadripper PRO 9000.
Read →Configure either one.
The RTX 5090 is in the JNCS AI 5090; the RTX PRO 6000 is in the AI PRO and AI MAX. Every part shows its price, and the total updates as you go.
Have an exact parts list or a department spec sheet? Send the whole list. For more than four GPUs or rackmount systems, see AI servers and larger systems.