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NVIDIA RTX 4000 SFF Ada 20GB vs NVIDIA RTX 6000 Ada 48GB

The RTX 6000 Ada delivers 4.7x the FP8 throughput of the RTX 4000 SFF Ada (729 vs 153 TFLOPS dense). The RTX 6000 Ada also carries 28 GB more memory (48 GB vs 20 GB).

RTX 4000 SFF Ada: Ada Lovelace, 2023 RTX 6000 Ada: Ada Lovelace, 2023
FP8 dense lead
4.7x
RTX 6000 Ada: 729 vs 153 TFLOPS
Memory
20 vs 48 GB
28 GB more for the RTX 6000 Ada
Bandwidth
280 GB/s vs 960 GB/s
RTX 6000 Ada moves data faster
TDP
70 W vs 300 W
RTX 4000 SFF Ada draws 230 W less
See rental pricing from $0.18/hr Download comparison sheet

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NVIDIA RTX 4000 SFF Ada 20GB vs NVIDIA RTX 6000 Ada 48GB

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NVIDIA RTX 4000 SFF Ada 20GB

Full specs →

What is the NVIDIA RTX 4000 SFF Ada?

The RTX 4000 SFF Ada is a GPU from NVIDIA on the Ada Lovelace architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. RTX 4000 SFF Ada full specifications →

Can I rent the RTX 4000 SFF Ada in the cloud?

Yes. Cloud providers tracked by Flopper rent the RTX 4000 SFF Ada by the hour, and the pricing page compares their current rates and the price history side by side. RTX 4000 SFF Ada rental prices →

How does the RTX 4000 SFF Ada compare with other accelerators?

This page sets the RTX 4000 SFF Ada against the RTX 6000 Ada. Both parts launched in the same year. Both are NVIDIA parts, and both ship as a PCIe card, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the RTX 4000 SFF Ada figures come from?

Every RTX 4000 SFF Ada figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

NVIDIA RTX 6000 Ada 48GB

Leads on FP8 Full specs →

What is the NVIDIA RTX 6000 Ada?

The RTX 6000 Ada is a GPU from NVIDIA on the Ada Lovelace architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. RTX 6000 Ada full specifications →

Can I rent the RTX 6000 Ada in the cloud?

Yes. Cloud providers tracked by Flopper rent the RTX 6000 Ada by the hour, and the pricing page compares their current rates and the price history side by side. RTX 6000 Ada rental prices →

How does the RTX 6000 Ada compare with other accelerators?

This page sets the RTX 6000 Ada against the RTX 4000 SFF Ada. Both parts launched in the same year. Both are NVIDIA parts, and both ship as a PCIe card, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the RTX 6000 Ada figures come from?

Every RTX 6000 Ada figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

RTX 4000 SFF Ada
RTX 6000 Ada
Architecture
Ada LovelaceAda Lovelace
Launch Year
20232023
Form Factor
PCIePCIe
Memory
20 GB48 GB
Memory Bandwidth
280 GB/s960 GB/s
TDP
70 W300 W
Process Node
4nm4nm

Performance (TFLOPS)

RTX 4000 SFF Ada
RTX 6000 Ada
0.3 TFLOPS No verified data available
19 TFLOPS 91 TFLOPS
No verified data available No verified data available
No verified data available No verified data available
No verified data available No verified data available
153 TFLOPS
307 TFLOPS sparse
729 TFLOPS
1,457 TFLOPS sparse
FP6
No verified data available No verified data available
No verified data available No verified data available
No verified data available No verified data available

Figures are dense. Where a vendor publishes a figure it sits under the dense one and never decides a winner. Hover any precision for its definition, or read the GPU glossary.

FLOPS by Precision

What actually differs

Both launched in 2023, the RTX 4000 SFF Ada on Ada Lovelace and the RTX 6000 Ada on Ada Lovelace.

The RTX 6000 Ada carries 28 GB more memory (48 GB against 20 GB), so larger models fit on one GPU before you shard. Bandwidth is 280 GB/s against 960 GB/s, which sets the ceiling on decode speed.

Power is 70 W against 300 W, and at FP32 the RTX 6000 Ada does more work per watt. Weight the FP8 and FP16 rows for LLM work and the FP64 row for HPC.

New to the terms? The glossary explains FP64, FP32, FP8, Sparsity and TFLOPS. For how the generations relate, see NVIDIA architectures explained.

Frequently asked questions

Is the RTX 4000 SFF Ada faster than the RTX 6000 Ada?

At FP8 precision the RTX 6000 Ada reaches 729 TFLOPS dense against 153 TFLOPS for the RTX 4000 SFF Ada. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the RTX 4000 SFF Ada or the RTX 6000 Ada?

Choose the RTX 6000 Ada for training and high-throughput inference: it has 4.7x the FP8 throughput of the RTX 4000 SFF Ada. It also carries 28 GB more memory, so larger models fit on one GPU before you shard. The RTX 6000 Ada draws 230 W more power, so budget for cooling and power delivery before you commit.

Which has more memory, the RTX 4000 SFF Ada or the RTX 6000 Ada?

The RTX 6000 Ada carries 48 GB of memory versus 20 GB for the RTX 4000 SFF Ada. Memory bandwidth is 280 GB/s for the RTX 4000 SFF Ada and 960 GB/s for the RTX 6000 Ada.

How much power do the RTX 4000 SFF Ada and the RTX 6000 Ada draw?

The RTX 4000 SFF Ada is rated at 70 W TDP and the RTX 6000 Ada at 300 W. On FP32 throughput per watt, the RTX 6000 Ada is the more efficient part.

How much do the RTX 4000 SFF Ada and the RTX 6000 Ada cost to rent?

Live cloud listings tracked by Flopper price the RTX 4000 SFF Ada from $0.18 per GPU-hour across 2 providers, and the RTX 6000 Ada from $0.60 per GPU-hour across 7 providers. The rental section on this page links to every provider, rate and the price history for each GPU.

Where to Rent

NVIDIA RTX 4000 SFF Ada 20GB

Rent from

$0.18 / GPU-hr

Lowest of 3 live listings across 2 providers

See all RTX 4000 SFF Ada rental prices →

Price history and every provider on the pricing page. Some links are affiliate links.

NVIDIA RTX 6000 Ada 48GB

Rent from

$0.60 / GPU-hr

Lowest of 10 live listings across 7 providers · median $0.99

See all RTX 6000 Ada rental prices →

Price history and every provider on the pricing page. Some links are affiliate links.

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