The GB300 is newer, with 7.2x the memory and 5.1x the bandwidth. The A800 is cheaper right now.
At a glance
Memory
7.2x more on GB300
- A800
- 40 GB
- GB300
- 288 GB
Memory bandwidth
5.1x higher on GB300
- A800
- 1.55 TB/s
- GB300
- 8.00 TB/s
Cheapest on-demand
95% cheaper on A800
- A800
- $0.88 /GPU/hr
- GB300
- $18.00 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A800 | GB300 | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $0.88 | -- /GPU/hr from $18.00 | |
| Reserved | No reserved listings | On request | |
| Spot | -- /GPU/hr from $0.40 | Sold out |
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 and spot on the A800 and on-demand on the GB300: 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 GB300 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A800 | GB300 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 40 GB HBM2 | 288 GB HBM3e | 7.2x more on GB300 |
| Bandwidth | 1,555 GB/s | 8,000 GB/s | 5.1x higher on GB300 |
| Bus width | 5,120-bit | 8,192-bit | 60% wider on GB300 |
| Compute · dense | |||
| FP4 | Not supported | 15,000 TFLOPS | GB300 only |
| FP8 | Not supported | 5,000 TFLOPS | GB300 only |
| FP16 / BF16 | 312 TFLOPS | 2,500 TFLOPS | 8x higher on GB300 |
| INT8 | 623.5 TOPS | 165 TOPS | 3.8x higher on A800 |
| FP32 | 19.5 TFLOPS | 80 TFLOPS | 4.1x higher on GB300 |
| FP64 | 9.7 TFLOPS | 1.3 TFLOPS | 7.5x higher on A800 |
| Platform | |||
| Interconnect | NVLink 400 GB/s | NVLink 1,800 GB/s | 4.5x higher on GB300 |
| Board power | 240 W | 1,400 W | 5.8x higher on GB300 |
| Released | Q4 2022 | Q1 2025 | 2 years newer on GB300 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32FP64INT4INT8 | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | |
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 GB300 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 | A800 | GB300 |
|---|---|---|
Vast.ai
USA
|
$0.88 /GPU/hr On-demand PCIe | -- |
GPUhub
Singapore
|
$1.18 /GPU/hr On-demand NVL | -- |
Oracle Cloud
USA
|
-- | $18.00 /GPU/hr On-demand NVL |
AWS
USA
|
-- | On request Reserved |
CoreWeave
USA
|
-- | On request Custom NVL |
Gcore
Luxembourg
|
-- | On request Custom NVL |
Nebius
Netherlands
|
-- | On request Custom NVL |
Together AI
USA
|
-- | On request Custom NVL |
Verda
Finland
|
-- | $9.25 /GPU/hr On-demand SXM |
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 2.2x the bandwidth of the A800
From $1.30 /GPU/hr Compare -
Nvidia A100
80 GB HBM2e · 24% more bandwidth than the A800
From $0.40 /GPU/hr Compare
-
Nvidia B300
288 GB HBM3e · released Q1 2025
From $6.50 /GPU/hr Compare
-
Nvidia B200
180 GB HBM3e · released Q1 2024
From $3.75 /GPU/hr Compare
Our data for Nvidia A800 was last updated on Sept. 14, 2026, and for Nvidia GB300 on Sept. 14, 2026.