The A800 has 67% more memory and 54% more bandwidth. The RTX 4090 is cheaper right now.
At a glance
Memory
67% more on A800
- A800
- 40 GB
- RTX 4090
- 24 GB
Memory bandwidth
54% higher on A800
- A800
- 1.55 TB/s
- RTX 4090
- 1.01 TB/s
Cheapest on-demand
72% cheaper on RTX 4090
- A800
- $1.18 /GPU/hr
- RTX 4090
- $0.33 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A800 | RTX 4090 | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $1.18 | $0.46 /GPU/hr from $0.33 | |
| Reserved | No reserved listings | $0.52 /GPU/hr from $0.33 (3 mo) | |
| Spot | No spot listings | $0.33 /GPU/hr from $0.16 |
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 A800: 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
A800 vs RTX 4090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A800 | RTX 4090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 40 GB HBM2 | 24 GB GDDR6X | 67% more on A800 |
| Bandwidth | 1,555 GB/s | 1,010 GB/s | 54% higher on A800 |
| Bus width | 5,120-bit | 384-bit | 13x wider on A800 |
| Compute · dense | |||
| FP8 | Not supported | 330.3 TFLOPS | RTX 4090 only |
| FP16 / BF16 | 312 TFLOPS | 165.2 TFLOPS | 89% higher on A800 |
| INT8 | 623.5 TOPS | 660.6 TOPS | 6% higher on RTX 4090 |
| FP32 | 19.5 TFLOPS | 82.6 TFLOPS | 4.2x higher on RTX 4090 |
| FP64 | 9.7 TFLOPS | Not supported | A800 only |
| Platform | |||
| Interconnect | NVLink 400 GB/s | PCIe only | NVLink on A800 only |
| Board power | 240 W | 450 W | 88% higher on RTX 4090 |
| Released | Q4 2022 | Q4 2022 | |
| Precision | |||
| Supported formats | FP16BF16TF32FP32FP64INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Figures are for each model's headline configuration. Where a form factor carries a different number, it is named under the figure.
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A800 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 | A800 | RTX 4090 |
|---|---|---|
|
|
$1.18 /GPU/hr On-demand NVL | $0.44 /GPU/hr On-demand |
|
|
-- | $0.34 /GPU/hr On-demand |
|
|
-- | $0.34 /GPU/hr On-demand |
|
|
-- | $0.34 /GPU/hr On-demand |
|
|
-- | $0.39 /GPU/hr On-demand |
|
|
-- | $0.44 /GPU/hr On-demand |
|
|
-- | $0.52 /GPU/hr On-demand PCIe |
|
|
-- | $0.58 /GPU/hr On-demand |
1 provider list the A800 and 21 the RTX 4090. Every listing is on the A800 page and the RTX 4090 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 2.2x the bandwidth of the A800
From $1.60 /GPU/hr Compare -
Nvidia A100
80 GB HBM2e · 24% more bandwidth than the A800
From $0.40 /GPU/hr Compare -
Nvidia RTX 5090
32 GB GDDR7 · 77% more bandwidth than the RTX 4090
From $0.35 /GPU/hr Compare -
Nvidia L40S
48 GB GDDR6 · 14% less bandwidth than the RTX 4090
From $0.55 /GPU/hr Compare
Our data for Nvidia A800 was last updated on Sept. 14, 2026, and for Nvidia RTX 4090 on Sept. 14, 2026.