The B300 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 B300
- A800
- 40 GB
- B300
- 288 GB
Memory bandwidth
5.1x higher on B300
- A800
- 1.55 TB/s
- B300
- 8.00 TB/s
Cheapest on-demand
76% cheaper on A800
- A800
- $1.18 /GPU/hr
- B300
- $4.99 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A800 | B300 | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $1.18 | $8.82 /GPU/hr from $4.99 | |
| Reserved | No reserved listings | $5.47 /GPU/hr from $4.25 | |
| Spot | No spot listings | $6.17 /GPU/hr from $4.08 |
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 B300 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A800 | B300 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 40 GB HBM2 | 288 GB HBM3e | 7.2x more on B300 |
| Bandwidth | 1,555 GB/s | 8,000 GB/s | 5.1x higher on B300 |
| Bus width | 5,120-bit | 8,192-bit | 60% wider on B300 |
| Compute · dense | |||
| FP4 | Not supported | 14,000 TFLOPS | B300 only |
| FP8 | Not supported | 4,500 TFLOPS | B300 only |
| FP16 / BF16 | 312 TFLOPS | 2,250 TFLOPS | 7.2x higher on B300 |
| INT8 | 623.5 TOPS | 153.5 TOPS | 4.1x higher on A800 |
| FP32 | 19.5 TFLOPS | 75 TFLOPS | 3.8x higher on B300 |
| FP64 | 9.7 TFLOPS | 1.2 TFLOPS | 8.1x higher on A800 |
| Platform | |||
| Interconnect | NVLink 400 GB/s | NVLink 1,800 GB/s | 4.5x higher on B300 |
| Board power | 240 W | 1,100 W | 4.6x higher on B300 |
| Released | Q4 2022 | Q1 2025 | 2 years newer on B300 |
| 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 B300 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 | B300 |
|---|---|---|
GPUhub
Singapore
|
$1.18 /GPU/hr On-demand NVL | -- |
Daytona
USA
|
-- | $7.10 /GPU/hr On-demand |
UpCloud
Finland
|
-- | $7.99 /GPU/hr On-demand SXM |
Lium
Distributed
|
-- | $8.00 /GPU/hr On-demand SXM |
Spheron
Singapore
|
-- | $12.41 /GPU/hr On-demand SXM |
Runcrate
USA
|
-- | $14.30 /GPU/hr On-demand NVL |
EmpirioLabs AI
USA
|
-- | $16.00 /GPU/hr On-demand |
GPUaaS
USA
|
-- | $5.00 /GPU/hr Custom SXM |
Packet·ai
USA
|
-- | On request Custom SXM |
1 provider list the A800 and 37 the B300. Every listing is on the A800 page and the B300 page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia A800 was last updated on Sept. 14, 2026, and for Nvidia B300 on Sept. 14, 2026.