RTX PRO 6000 Blackwell vs GeForce RTX 5090 for AI work: what the extra 64 GB buys, and what it does not
Eurokommerz, Vienna, since 2006: Private AI/ML · IT Managed Services · Enterprise Training · AI Hardware & Software
- Both cards move data at 1,792 GB/s over a 512-bit GDDR7 bus, so on a model that fits both, token generation runs at a similar speed
- Memory capacity, 96 GB against 32 GB, decides whether gpt-oss-120b, a 70B model in 4-bit or a long context fits on one card
- NVIDIA’s architecture tables put BF16 with FP32 accumulate at 503.8 dense TFLOPS on the RTX PRO 6000 and 209.5 on the 5090: 2.4 times the rate for the maths that training uses
- NVIDIA’s driver licence says GeForce software “is not licensed for datacenter deployment”, and NVIDIA’s warranty for its own GeForce cards is void under data-centre use
- The RTX PRO adds MIG with up to four instances and enterprise drivers; we found no NVIDIA product document that confirms peer-to-peer transfers between GeForce RTX 50-series cards
Supplied by Eurokommerz: NVIDIA RTX PRO 6000 Blackwell Check price and availability →
One chip family, two products
For AI work the RTX PRO 6000 Blackwell differs from the GeForce RTX 5090 in three places: 96 against 32 GB of memory, BF16 and FP8 maths with FP32 accumulation at 2.4 times the 5090’s peak rate, and NVIDIA’s driver licence, which excludes GeForce software from data-centre deployment. On a model that fits both cards, token generation runs at a similar speed, because both read memory at 1,792 GB/s. The two come from the same generation and share compute capability 12.0, so the same CUDA code runs on both. NVIDIA enables 170 streaming multiprocessors on the 5090 and 188 on the RTX PRO 6000, and gives the professional card three times the memory on the same 512-bit bus. NVIDIA’s whitepapers give both cards GDDR7 at 28 Gbit/s per pin, which over 512 bits makes the 1,792 GB/s in the table.
| SPECIFICATION | GEFORCE RTX 5090 | RTX PRO 6000 WORKSTATION | RTX PRO 6000 MAX-Q |
|---|---|---|---|
| CUDA cores | 21,760 | 24,064 | 24,064 |
| Memory | 32 GB GDDR7, 512-bit | 96 GB GDDR7 with ECC, 512-bit | 96 GB GDDR7 with ECC, 512-bit |
| Bandwidth | 1,792 GB/s | 1,792 GB/s | 1,792 GB/s |
| L2 cache | 96 MB | 128 MB | 128 MB |
| Boost clock | 2,407 MHz | 2,617 MHz | 2,280 MHz |
| Board power | 575 W | 600 W | 300 W |
| AI TOPS (FP4, sparse) | 3,352 | 4,000 | 3,511 |
| Video encoders and decoders | 3 and 2 | 4 and 4 | 4 and 4 |
| Display outputs | 3× DisplayPort 2.1b, 1× HDMI 2.1b | 4× DisplayPort 2.1b | 4× DisplayPort 2.1b |
| MIG | no | up to 4 instances | up to 4 instances |
| NVLink | no | no | no |
NVIDIA product pages and datasheets; boost clocks, L2 cache and the 5090’s bandwidth from NVIDIA’s RTX Blackwell (GeForce) and RTX PRO Blackwell architecture whitepapers. NVIDIA’s product brief for the Server Edition lists NVLink as “Not supported”, and Lenovo’s guides for the Max-Q and Server Edition state “NVLink support: No”.
The third edition, the one for a rack, is the Server Edition: the same 96 GB, passive cooling, 1,597 GB/s and vGPU support. It is the only edition built for a server chassis, and it matters for the licence question below.
Where they run at a similar speed
Generating a token reads every active weight once, so single-user generation speed follows memory bandwidth, and the two cards have the same 1,792 GB/s. A published test agrees. In its review of 7 October 2025, StorageReview ran the UL Procyon text-generation benchmark, which uses TensorRT, and put the RTX PRO 6000 between 3.6 and 8.2 per cent ahead of the 5090 in output tokens per second on four models that fit both cards. Models that take most of the 5090’s 32 GB leave it little room for the KV cache, so context length and parallel requests run out on the 5090 before speed does. For a model that fits comfortably in 32 GB and one user at a time, the two cards are close.
Under heavy load the result is different. With many requests at once, the memory left after the weights holds the KV cache, and the cache decides how many requests run in parallel. With the same model on both cards, the RTX PRO 6000 has room for far more conversations at once.
The same holds beyond language models. In the rendering runs of the same StorageReview review, the 5090 led V-Ray with 14,764 vpaths against 12,128 and produced an SDXL image in 5.2 seconds against 5.4, while Blender went the other way, 7,870 samples per minute against 7,421. On a desk with one artist or one developer and mid-sized models, the GeForce card is not the slow option.
Models that do not fit in 32 GB
When the model no longer fits in 32 GB, the comparison changes. gpt-oss-120b ships at 60.8 GiB, a 70B model in 4-bit needs about 40 GiB before any context, and neither loads into 32 GB without spilling into system memory. The layers that do not fit then work from system memory, whose bandwidth is a fraction of the card’s 1,792 GB/s, and generation slows down accordingly. In LM Studio, one request at a time, StorageReview measured the RTX PRO 6000 at 163.1 tokens per second on gpt-oss-120b and 31.7 on Llama 3.3 70B, runs the 5090 cannot make on its own. We supply the RTX PRO 6000 in all three editions; send us your model and context length and we say which edition fits.
| WORKLOAD | WEIGHTS | RTX 5090, 32 GB | RTX PRO 6000, 96 GB |
|---|---|---|---|
| 8B model, BF16 | about 15 GiB | fits | fits |
| 32B model, 4-bit | about 20 GiB | fits, short context | fits, long context |
| 70B model, 4-bit (NVFP4) | 40 GiB | does not fit | fits, with room for users |
| gpt-oss-120b (MXFP4) | 60.8 GiB | does not fit | fits |
| 70B model, FP8 | 68 GiB | does not fit | fits, FP8 cache for about twelve 8K conversations |
Weights only; the KV cache and the runtime come on top. The conversation count follows our users-per-card rule: 0.9 × 95.6 GiB, less 3 GiB of overhead, less the weights. The 70B figures are for Llama 3.3 70B from our 70B sizing example, the 32B figure is NVIDIA’s Qwen3-32B NVFP4 checkpoint, and gpt-oss-120b is from OpenAI’s model card.
Several RTX 5090 cards against one RTX PRO 6000
On raw throughput, several 5090s can beat one RTX PRO 6000: two of them read memory at a combined 3,584 GB/s against 1,792. That figure leaves out the costs. Two 5090s are rated at 1,150 W of board power where one RTX PRO 6000 is rated at 600 W, the model has to be split across the cards, and we found no NVIDIA product document that confirms peer-to-peer transfers between GeForce RTX 50-series cards, so plan for every exchange between them to pass through the host. The licence below applies to each of them.
Training throughput: FP32 accumulate on GeForce and RTX PRO
Tensor cores multiply low-precision numbers and add the products into an accumulator. Mixed-precision training keeps that accumulator in FP32 for accuracy; PyTorch documents FP16 accumulation as an opt-in that trades numerical precision for speed, and NVIDIA’s whitepapers list BF16 only with FP32 accumulation. The table below shows where the two products differ.
| DENSE PEAK | RTX 5090 | RTX PRO 6000 WORKSTATION | RTX PRO 6000 MAX-Q |
|---|---|---|---|
| FP16, FP16 accumulate | 419 TFLOPS | 503.8 TFLOPS | 438.9 TFLOPS |
| FP16 or BF16, FP32 accumulate | 209.5 TFLOPS | 503.8 TFLOPS | 438.9 TFLOPS |
| FP8, FP32 accumulate | 419 TFLOPS | 1,007.6 TFLOPS | 877.9 TFLOPS |
| FP4 | 1,676 TFLOPS | 2,015.2 TFLOPS | 1,755.7 TFLOPS |
| INT8 | 838 TOPS | 1,007.6 TOPS | 877.9 TOPS |
NVIDIA RTX Blackwell GPU Architecture whitepaper v1.1, Table 3, and RTX PRO Blackwell GPU Architecture whitepaper v1.1, Table 4. Peak rates at boost clock, without sparsity.
The GeForce card runs FP32-accumulate tensor maths at half rate: 209.5 TFLOPS against 419 with FP16 accumulation. The RTX PRO 6000 runs both at full rate. Divided by streaming multiprocessors and clock, the tables give the same 1,024 dense FP16 operations per multiprocessor per clock on both products at full rate, which points to a product decision rather than a difference in the tensor cores. With FP32 accumulation, the RTX PRO 6000 therefore has 2.4 times the peak BF16 and FP8 rate of the 5090 on the Workstation Edition and 2.1 times on the 300 W Max-Q. FP4 and INT8, which the 5090 runs at full rate, differ by only 1.2 times on the Workstation Edition and 1.05 times on the Max-Q.
For inference that computes in FP4 or INT8, activations included, that table barely matters; weight-only 4-bit formats such as AWQ still do their matrix maths in 16-bit, and single-user generation is limited by memory bandwidth in any case. For fine-tuning, training and BF16 work in general it is the largest performance difference between the two cards, and the headline AI TOPS do not show it, because they are FP4 figures on both.
For fine-tuning we supply the RTX PRO 6000 as cards or in multi-GPU servers built to order. Tell us the model and the fine-tuning method, and we reply with a configuration and a quote within one business day.
The licence and the warranty
For servers, the licence and warranty terms are the deciding factor. NVIDIA’s driver licence, the NVIDIA Driver License Agreement dated 25 February 2025, says in section 2.8 that GeForce and Titan software “is licensed for use only on GeForce or Titan hardware products you own” and “is not licensed for datacenter deployment”. Section 2.7 of the same agreement, which is not limited to GeForce, rules out using the software to “provide commercial hosting services” unless the agreement expressly grants it. NVIDIA’s warranty for its own GeForce cards adds that they are “intended for consumer end user purposes only”, not for “datacenter use and/or GPU cluster commercial deployments”, and that such use “shall void this warranty”. The licence does not define a data centre, and whether a particular installation falls under the clause is a legal assessment for the company’s legal department. NVIDIA’s own warranty for RTX PRO workstation cards runs three years, and we found no such exclusion in it; a card bought through a board partner carries that partner’s terms. Our article on GeForce cards in a server quotes the clause and the warranty in full.
For a GPU server, we supply the Server Edition, built for a server chassis; our list of compatible servers shows which models take it. Write to us with the server model and the number of cards, and we check power and cooling before you order.
MIG, ECC, drivers and peer-to-peer
MIG. The RTX PRO 6000 splits into up to four isolated instances of 24 GB, or two of 48 GB, on Linux with driver 575.51.03 or later, a current vBIOS (98.02.55.00.00 or later on the Workstation Edition, 98.02.6A.00.00 on the Max-Q) and the display mode switched to compute. The 5090 does not support MIG. For a team sharing one card, MIG gives up to four users an isolated instance each instead of one shared queue; our MIG and vGPU guide has the details. Neither the 5090 nor the Workstation and Max-Q editions are on NVIDIA’s vGPU list; vGPU needs the Server Edition.
ECC. The RTX PRO 6000 advertises GDDR7 with ECC. NVIDIA’s GeForce whitepaper explains that GDDR7 carries ECC inside the memory chip and that it is “always enabled on GeForce RTX GPUs with GDDR7 memory”. NVIDIA’s RTX PRO whitepaper adds that the GDDR7 implementation for professional products “includes support for Enhanced CRC for RAS”; we found no NVIDIA document that describes any other difference. ECC alone is therefore a weaker argument in this generation than it was with GDDR6.
Drivers. The RTX PRO runs NVIDIA’s RTX Enterprise drivers with ISV certifications; the 5090 runs Game Ready and Studio drivers. For CAD, simulation and anything with a certified application list, only the first counts.
Peer-to-peer. We found no NVIDIA product document that states peer-to-peer support card by card, for GeForce or for RTX PRO cards, so test it on the system itself, as our P2P guide describes. On a multi-card build, also read NVIDIA’s NCCL guidance: IOMMU translation on bare-metal Linux breaks PCIe peer-to-peer, so the BIOS settings matter as much as the card.
RTX 5090 or RTX PRO 6000: which to choose
The 5090 is a fair choice for one person at a desk working with models up to about 32B in 4-bit, for image generation and for GPU rendering, where it is as fast as the professional card and sometimes faster. The RTX PRO 6000 is the right choice when the model or the context needs more than 32 GB, when the work includes training or fine-tuning in BF16 or FP8, when several people share the card through MIG, when a certified driver is required, and whenever the machine goes into a server room. For the last case the Server Edition, not the Workstation card, is the edition to buy.
What we supply
We supply the RTX PRO 6000 Blackwell in all three editions, EU-wide with manufacturer warranty, on one EU contract and invoice: the Workstation Edition or the Max-Q for a desk-side machine, the Server Edition for a rack server and for vGPU. We deliver them as cards or in a workstation or GPU server built to order; we do not supply GeForce cards. For several cards in one desk-side machine, see four Max-Q cards in one workstation; for the rack, our edition comparison.
FAQ
Is the RTX PRO 6000 faster than the RTX 5090?
Can RTX 5090 cards be used in a server?
Why does the RTX PRO 6000 have more compute for fine-tuning at the same bandwidth?
Does the RTX 5090 have ECC memory?
Can two RTX 5090 cards replace one RTX PRO 6000?
Can one RTX PRO 6000 be shared between several users?
We supply the RTX PRO 6000 in all three editions, as cards or in workstations and servers built to order. Send us the model, context length, training or inference, and desk or rack; we answer with the edition and a quote within one business day.
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