The RTX 4000 SFF Ada is newer and has 25% more memory, while the A4000 has 60% more bandwidth. The A4000 is cheaper right now.
At a glance
Memory
25% more on RTX 4000 SFF Ada
- A4000
- 16 GB
- RTX 4000 SFF Ada
- 20 GB
Memory bandwidth
60% higher on A4000
- A4000
- 448 GB/s
- RTX 4000 SFF Ada
- 280 GB/s
Cheapest on-demand
79% cheaper on A4000
- A4000
- $0.09 /GPU/hr
- RTX 4000 SFF Ada
- $0.42 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A4000 | RTX 4000 SFF Ada | Difference |
|---|---|---|---|
| On-demand | $0.48 /GPU/hr from $0.09 | -- /GPU/hr from $0.42 | |
| Reserved | $0.18 /GPU/hr from $0.07 (1 mo) | No reserved listings | |
| Spot | -- /GPU/hr from $0.09 | 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 spot on the A4000 and 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
A4000 vs RTX 4000 SFF Ada price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A4000 | RTX 4000 SFF Ada | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 16 GB GDDR6 | 20 GB GDDR6 | 25% more on RTX 4000 SFF Ada |
| Bandwidth | 448 GB/s | 280 GB/s | 60% higher on A4000 |
| Bus width | 256-bit | 160-bit | 60% wider on A4000 |
| Compute · dense | |||
| FP8 | Not supported | 153.4 TFLOPS | RTX 4000 SFF Ada only |
| FP16 / BF16 | 76.7 TFLOPS | 76.7 TFLOPS | Identical |
| FP32 | 19.2 TFLOPS | 19.2 TFLOPS | Identical |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 140 W | 70 W | 2x higher on A4000 |
| Released | Q2 2021 | 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: A4000 datasheet and RTX 4000 SFF Ada datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.
| Provider | A4000 | RTX 4000 SFF Ada |
|---|---|---|
Vast.ai
USA
|
$0.09 /GPU/hr On-demand | -- |
GPU.ai
UAE
|
$0.09 /GPU/hr On-demand | -- |
Sesterce
France
|
$0.88 /GPU/hr On-demand | -- |
Runcrate
USA
|
$1.04 /GPU/hr On-demand PCIe | -- |
Lium
Distributed
|
$0.12 /GPU/hr Spot | -- |
TensorDock
Distributed
|
$0.21 /GPU/hr On-demand | -- |
Paperspace
USA
|
$0.76 /GPU/hr On-demand | -- |
Hyperstack
UK
|
$0.11 /GPU/hr Reserved | -- |
Hetzner
Germany
|
-- | $0.42 /GPU/hr On-demand |
Koyeb
France
|
-- | $0.50 /GPU/hr On-demand |
Runpod
USA
|
-- | $0.18 /GPU/hr On-demand |
13 providers list the A4000 and 3 the RTX 4000 SFF Ada. Every listing is on the A4000 page and the RTX 4000 SFF Ada page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia T4
16 GB GDDR6 · 33% less bandwidth than the A4000
From $0.15 /GPU/hr Compare -
Nvidia RTX 4000 Ada
20 GB GDDR6 · 20% less bandwidth than the A4000
From $0.20 /GPU/hr Compare
-
Nvidia A5000
24 GB GDDR6 · 71% more bandwidth than the A4000
From $0.20 /GPU/hr Compare
-
Nvidia L4
24 GB GDDR6 · data center card
From $0.27 /GPU/hr Compare
Our data for Nvidia A4000 was last updated on Sept. 14, 2026, and for Nvidia RTX 4000 SFF Ada on Sept. 14, 2026.