Both have 288 GB of memory and the same bandwidth. The B300 is cheaper right now.
At a glance
Memory
Identical
- B300
- 288 GB
- GB300
- 288 GB
Memory bandwidth
Identical
- B300
- 8.00 TB/s
- GB300
- 8.00 TB/s
Cheapest on-demand
72% cheaper on B300
- B300
- $4.99 /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 | B300 | GB300 | Difference |
|---|---|---|---|
| On-demand | $8.99 /GPU/hr from $4.99 | -- /GPU/hr from $18.00 | |
| Reserved | $5.43 /GPU/hr from $4.25 | On request | |
| Spot | $5.63 /GPU/hr from $4.08 | 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 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
B300 vs GB300 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | GB300 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 288 GB HBM3e | Identical |
| Bandwidth | 8,000 GB/s | 8,000 GB/s | Identical |
| Bus width | 8,192-bit | 8,192-bit | Identical |
| Compute · dense | |||
| FP4 | 14,000 TFLOPS | 15,000 TFLOPS | 7% higher on GB300 |
| FP8 | 4,500 TFLOPS | 5,000 TFLOPS | 11% higher on GB300 |
| FP16 / BF16 | 2,250 TFLOPS | 2,500 TFLOPS | 11% higher on GB300 |
| INT8 | 153.5 TOPS | 165 TOPS | 7% higher on GB300 |
| FP32 | 75 TFLOPS | 80 TFLOPS | 7% higher on GB300 |
| FP64 | 1.2 TFLOPS | 1.3 TFLOPS | 8% higher on GB300 |
| Platform | |||
| Interconnect | NVLink 1,800 GB/s | NVLink 1,800 GB/s | Identical |
| Board power | 1,100 W | 1,400 W | 27% higher on GB300 |
| Released | Q1 2025 | Q1 2025 | |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: B300 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 | B300 | GB300 |
|---|---|---|
Daytona
USA
|
$7.10 /GPU/hr On-demand | -- |
GPU.ai
UAE
|
$8.99 /GPU/hr On-demand SXM | -- |
Runpod
USA
|
$8.99 /GPU/hr On-demand SXM | -- |
Vast.ai
USA
|
$9.94 /GPU/hr On-demand | -- |
Lium
Distributed
|
$10.50 /GPU/hr On-demand SXM | -- |
EmpirioLabs AI
USA
|
$21.00 /GPU/hr On-demand | -- |
Spheron
Singapore
|
$4.19 /GPU/hr Spot SXM | -- |
GPUaaS
USA
|
$5.00 /GPU/hr Custom SXM | -- |
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
|
-- | $10.95 /GPU/hr On-demand SXM |
34 providers list the B300 and 7 the GB300. Every listing is on the B300 page and the GB300 page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia GB300 on Sept. 14, 2026.