NVIDIA RTX A6000 48GB vs NVIDIA GeForce RTX 3090 24GB

The RTX A6000 delivers 2.2x the FP16 throughput of the GeForce RTX 3090 (155 vs 71 TFLOPS dense). The RTX A6000 also carries 24 GB more memory (48 GB vs 24 GB).

RTX A6000: Ampere, 2020 GeForce RTX 3090: Ampere, 2020
FP16 dense lead
2.2x
RTX A6000: 155 vs 71 TFLOPS
VRAM
48 vs 24 GB
24 GB more for the RTX A6000
Bandwidth
768 GB/s vs 936 GB/s
GeForce RTX 3090 moves data faster
TDP
300 W vs 350 W
RTX A6000 draws 50 W less

Specifications

RTX A6000
GeForce RTX 3090
Architecture
AmpereAmpere
Launch Year
20202020
Form Factor
PCIePCIe
VRAM
48 GB24 GB
Memory Bandwidth
768 GB/s936 GB/s
TDP
300 W350 W
Process Node
8nm8nm

Performance (TFLOPS)

RTX A6000
GeForce RTX 3090
FP64
0.6 TFlops 0.6 TFlops
FP32
38.7 TFlops 35.6 TFlops
FP16
154.8 TFlops
309.6 TFLOPS sparse
71.0 TFlops
142.0 TFLOPS sparse
BF16
154.8 TFlops
309.6 TFLOPS sparse
71.0 TFlops
142.0 TFLOPS sparse
INT8
309.7 TFlops
619.4 TOPS sparse
284.0 TFlops
568.0 TOPS sparse

FLOPS by Precision

What actually differs

Both GPUs launched in 2020: the RTX A6000 on Ampere and the GeForce RTX 3090 on Ampere.

Dense throughput for the RTX A6000 against the GeForce RTX 3090: FP64 0.6 vs 0.6 TFLOPS, FP32 39 vs 36 TFLOPS, FP16 155 vs 71 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.

Memory is 48 GB against 24 GB, fed at 768 GB/s versus 936 GB/s. More memory per GPU means larger models fit before you have to shard across cards, which often matters more than raw TFLOPS for inference.

Power budgets are 300 W for the RTX A6000 and 350 W for the GeForce RTX 3090. At FP32 that works out to 0.13 against 0.10 TFLOPS per watt.

For LLM training and inference, weight the FP8 and FP16 rows and memory capacity most heavily. For scientific and HPC workloads, the FP64 row is the one to read.

Frequently asked questions

Is the RTX A6000 faster than the GeForce RTX 3090?

At FP16 precision the RTX A6000 reaches 155 TFLOPS dense against 71 TFLOPS for the GeForce RTX 3090. The performance table on this page lists every published precision for both GPUs.

Which has more memory, the RTX A6000 or the GeForce RTX 3090?

The RTX A6000 carries 48 GB of VRAM versus 24 GB for the GeForce RTX 3090. Memory bandwidth is 768 GB/s for the RTX A6000 and 936 GB/s for the GeForce RTX 3090.

How much power do the RTX A6000 and the GeForce RTX 3090 draw?

The RTX A6000 is rated at 300 W TDP and the GeForce RTX 3090 at 350 W. On FP32 throughput per watt, the RTX A6000 is the more efficient part.

Can I rent the RTX A6000 or the GeForce RTX 3090 in the cloud?

Yes. Live cloud listings tracked by Flopper start at $0.22 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.

Where to Rent

NVIDIA RTX A6000 48GB

ProviderConfigurationPrice/GPU-hrChecked
DataCrunch
1× RTX A6000 48GB Spot $0.30 just now View →
RunPod
1× RTX A6000 48GB Community $0.33 just now View →
Hyperstack
1× RTX A6000 48GB Spot $0.40 just now View →
Hyperstack
1× RTX A6000 48GB $0.50 just now View →
RunPod
1× RTX A6000 48GB $0.53 just now View →
Massed Compute
8× RTX A6000 48GB $0.57 just now View →
DataCrunch
1× RTX A6000 48GB $0.61 just now View →
AceCloud
1× RTX A6000 48GB $0.93 just now View →
Paperspace
1× RTX A6000 48GB $1.93 just now View →
All RTX A6000 listings and price history →

NVIDIA GeForce RTX 3090 24GB

ProviderConfigurationPrice/GPU-hrChecked
RunPod
1× GeForce RTX 3090 24GB Community $0.22 just now View →
RunPod
1× GeForce RTX 3090 24GB $0.50 just now View →
All GeForce RTX 3090 listings and price history →

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