The RTX A6000 has 2x the memory, while the RTX 4090 is newer and has 32% more bandwidth. The RTX 4090 is typically cheaper.
At a glance
Memory
2x more on RTX A6000
- RTX A6000
- 48 GB
- RTX 4090
- 24 GB
Memory bandwidth
32% higher on RTX 4090
- RTX A6000
- 768 GB/s
- RTX 4090
- 1,010 GB/s
Cheapest on-demand
16% cheaper on RTX 4090
- RTX A6000
- $0.35 /GPU/hr
- RTX 4090
- $0.30 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | RTX A6000 | RTX 4090 | Difference |
|---|---|---|---|
| On-demand | $0.56 /GPU/hr from $0.35 | $0.48 /GPU/hr from $0.30 | 14% cheaper on RTX 4090 |
| Reserved | $0.48 /GPU/hr from $0.26 (6 mo) | $0.52 /GPU/hr from $0.28 (3 mo) | 6% cheaper on RTX A6000 |
| Spot | $0.33 /GPU/hr from $0.13 | $0.32 /GPU/hr from $0.16 | Within 5% |
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. Verify before provisioning. More on how we price.
Price history
RTX A6000 vs RTX 4090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | RTX A6000 | RTX 4090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 48 GB GDDR6 | 24 GB GDDR6X | 2x more on RTX A6000 |
| Bandwidth | 768 GB/s | 1,010 GB/s | 32% higher on RTX 4090 |
| Bus width | 384-bit | 384-bit | Identical |
| Compute · dense | |||
| FP8 | Not supported | 330.3 TFLOPS | RTX 4090 only |
| FP16 / BF16 | 154.8 TFLOPS | 165.2 TFLOPS | 7% higher on RTX 4090 |
| INT8 | 309.7 TOPS | 660.6 TOPS | 2.1x higher on RTX 4090 |
| FP32 | 38.7 TFLOPS | 82.6 TFLOPS | 2.1x higher on RTX 4090 |
| Platform | |||
| Interconnect | NVLink 112 GB/s | PCIe only | NVLink on RTX A6000 only |
| Board power | 300 W | 450 W | 50% higher on RTX 4090 |
| Released | Q4 2020 | Q4 2022 | 2 years newer on RTX 4090 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: RTX A6000 datasheet and RTX 4090 datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.
| Provider | RTX A6000 | RTX 4090 |
|---|---|---|
Vast.ai
USA
|
$0.40 /GPU/hr On-demand | $0.30 /GPU/hr On-demand |
GPU.ai
UAE
|
$0.40 /GPU/hr On-demand | $0.34 /GPU/hr On-demand |
Runpod
USA
|
$0.53 /GPU/hr On-demand | $0.34 /GPU/hr On-demand |
Oblivus
USA
|
$0.55 /GPU/hr On-demand PCIe | $0.64 /GPU/hr On-demand PCIe |
Thunder Compute
USA
|
$0.35 /GPU/hr On-demand | -- |
Spheron
Singapore
|
$0.53 /GPU/hr On-demand PCIe | -- |
Massed Compute
USA
|
$0.55 /GPU/hr On-demand | -- |
Sesterce
France
|
$0.55 /GPU/hr On-demand | -- |
Salad
Distributed
|
-- | $0.33 /GPU/hr On-demand |
Packet·ai
USA
|
-- | $0.39 /GPU/hr On-demand |
GPUhub
Singapore
|
-- | $0.44 /GPU/hr On-demand |
Lium
Distributed
|
-- | $0.58 /GPU/hr On-demand |
21 providers list the RTX A6000 and 21 the RTX 4090. Every listing is on the RTX A6000 page and the RTX 4090 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia L40S
48 GB GDDR6 · PCIe only
From $0.54 /GPU/hr Compare -
Nvidia RTX 6000 Ada
48 GB GDDR6 · 25% more bandwidth than the RTX A6000
From $0.58 /GPU/hr Compare
-
Nvidia A5000
24 GB GDDR6 · released Q2 2021
From $0.23 /GPU/hr Compare
-
Nvidia RTX 5090
32 GB GDDR7 · 77% more bandwidth than the RTX 4090
From $0.35 /GPU/hr Compare
Our data for Nvidia RTX A6000 was last updated on Sept. 14, 2026, and for Nvidia RTX 4090 on Sept. 14, 2026.