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
64% cheaper on B300
- B300
- $6.50 /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 | $7.89 /GPU/hr from $6.50 | -- /GPU/hr from $18.00 | |
| Reserved | $5.99 /GPU/hr from $4.25 | On request | |
| Spot | $5.83 /GPU/hr from $4.30 | 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 |
|---|---|---|
GPU.ai
UAE
|
$7.89 /GPU/hr On-demand SXM | -- |
Runpod
USA
|
$7.89 /GPU/hr On-demand SXM | -- |
Lium
Distributed
|
$8.00 /GPU/hr On-demand SXM | -- |
Vast.ai
USA
|
$9.38 /GPU/hr On-demand | -- |
Spheron
Singapore
|
$10.21 /GPU/hr On-demand SXM | -- |
EmpirioLabs AI
USA
|
$16.00 /GPU/hr On-demand | -- |
GPUaaS
USA
|
On request Custom SXM | -- |
Packet·ai
USA
|
On request 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
|
-- | $9.06 /GPU/hr On-demand SXM |
33 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.
-
Nvidia H100
80 GB HBM3 · 58% less bandwidth than the B300
From $1.30 /GPU/hr Compare -
Nvidia B200
180 GB HBM3e · released Q1 2024
From $3.75 /GPU/hr Compare
-
Nvidia H200
141 GB HBM3e · 40% less bandwidth than the B300
From $2.09 /GPU/hr Compare
-
Nvidia GB200
186 GB HBM3e · released Q1 2024
From $10.50 /GPU/hr Compare
Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia GB300 on Sept. 14, 2026.