Two Nvidia workstation GPUs, one Ampere and one Ada Lovelace: 48 GB GDDR6 against 20 GB GDDR6, 2.7x the memory bandwidth on the RTX A6000, and NVLink 112 GB/s on the RTX A6000 where the RTX 4000 SFF Ada is PCIe only.
At a glance
Memory
- RTX A6000
- 48 GB
- RTX 4000 SFF Ada
- 20 GB
2.4x more on RTX A6000
Memory bandwidth
- RTX A6000
- 768 GB/s
- RTX 4000 SFF Ada
- 280 GB/s
2.7x higher on RTX A6000
Cheapest on-demand
- RTX A6000
- $0.40 /GPU/hr
- RTX 4000 SFF Ada
- $0.43 /GPU/hr
7% cheaper on RTX A6000
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | RTX A6000 | RTX 4000 SFF Ada | Difference |
|---|---|---|---|
| On-demand | $0.58 /GPU/hr from $0.40 | -- /GPU/hr from $0.43 | |
| Reserved | $0.48 /GPU/hr from $0.35 | No reserved listings | |
| Spot | $0.40 /GPU/hr from $0.33 | No spot listings |
Heads up: A provider's own page may quote a different figure, for example on tax, region or a promotion. A monthly-only plan shows a derived hourly rate. Medians are across providers, one vote each, so a large catalog does not outweigh a small one. No median for on-demand on the RTX 4000 SFF Ada: we only show one when at least 3 providers list the GPU on that billing type. Verify before provisioning. More on how we price.
Price history
RTX A6000 vs RTX 4000 SFF Ada price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | RTX A6000 | RTX 4000 SFF Ada | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 48 GB GDDR6 | 20 GB GDDR6 | 2.4x more on RTX A6000 |
| Bandwidth | 768 GB/s | 280 GB/s | 2.7x higher on RTX A6000 |
| Bus width | 384-bit | 160-bit | 2.4x wider on RTX A6000 |
| Compute · dense | |||
| FP8 | Not supported | 153.4 TFLOPS | RTX 4000 SFF Ada only |
| FP16 / BF16 | 154.8 TFLOPS | 76.7 TFLOPS | 2x higher on RTX A6000 |
| INT8 | 309.7 TOPS | ||
| FP32 | 38.7 TFLOPS | 19.2 TFLOPS | 2x higher on RTX A6000 |
| Platform | |||
| Interconnect | NVLink 112 GB/s | PCIe only | NVLink on RTX A6000 only |
| Board power | 300 W | 70 W | 4.3x higher on RTX A6000 |
| Released | Q4 2020 | Q2 2023 | 2 years newer on RTX 4000 SFF Ada |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: RTX A6000 datasheet and RTX 4000 SFF Ada datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | RTX A6000 /GPU/hr | RTX 4000 SFF Ada /GPU/hr |
|---|---|---|
Koyeb
|
On-Demand $0.75 | On-Demand $0.50 |
GPU.ai
|
On-Demand $0.40 | -- |
Vast.ai
|
On-Demand $0.40 | -- |
Lium
|
On-Demand $0.42 | -- |
Spheron
|
On-Demand $0.53 | -- |
Massed Compute
|
On-Demand $0.55 | -- |
Sesterce
|
On-Demand $0.55 | -- |
Runcrate
|
On-Demand $0.63 | -- |
Hetzner
|
-- | On-Demand $0.43 |
Runpod
|
-- | On-Demand $0.18 |
21 providers list the RTX A6000 and 3 the RTX 4000 SFF Ada. Every listing is on the RTX A6000 page and the RTX 4000 SFF Ada page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia L40S
From $0.38 /GPU/hr Compare -
Nvidia RTX 6000 Ada
From $0.55 /GPU/hr Compare -
Nvidia A5000
From $0.25 /GPU/hr Compare -
Nvidia RTX 4000 Ada
From $0.17 /GPU/hr Compare
Our data for Nvidia RTX A6000 was last updated on Sept. 14, 2026, and for Nvidia RTX 4000 SFF Ada on Sept. 14, 2026.