A data center GPU against a consumer card, one Blackwell Ultra and one Ampere: up to 288 GB HBM3e against 12 GB GDDR6X, 8.8x the memory bandwidth on the B300, and NVLink 1,800 GB/s on the B300 where the RTX 3080 Ti is PCIe only.
At a glance
Updated 5 minutes ago- Memory
- 288 GB
- HBM3e
- Memory bandwidth
- 8.00 TB/s
- From
- $6.50 /GPU/hr
- 32 providers
- Memory
- 12 GB
- GDDR6X
- Memory bandwidth
- 912 GB/s
- From
- $0.20 /GPU/hr
- 3 providers
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | B300 | RTX 3080 Ti | Difference |
|---|---|---|---|
| On-demand | $6.50 | $0.20 | 32x more expensive on B300 |
| Spot | $4.30 | $0.08 | 54x more expensive on B300 |
| Reserved | $4.25 | No reserved listings | |
| Median | $7.87 | $0.53 | 15x more expensive on B300 |
Median: Median across providers, one vote each, so a large catalog does not outweigh a small one.
Price history
B300 vs RTX 3080 Ti price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | RTX 3080 Ti | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 12 GB GDDR6X | 24x more on B300 |
| Bandwidth | 8,000 GB/s | 912 GB/s | 8.8x higher on B300 |
| Bus width | 8,192-bit | 384-bit | 21x wider on B300 |
| Compute · dense | |||
| FP4 | 14,000 TFLOPS | Not supported | B300 only |
| FP8 | 4,500 TFLOPS | Not supported | B300 only |
| FP16 / BF16 | 2,250 TFLOPS | 68.2 TFLOPS | 33x higher on B300 |
| INT8 | 153.5 TOPS | 272.8 TOPS | 1.8x higher on RTX 3080 Ti |
| FP32 | 75 TFLOPS | 34.1 TFLOPS | 2.2x higher on B300 |
| FP64 | 1.2 TFLOPS | Not supported | B300 only |
| Platform | |||
| Interconnect | NVLink 1,800 GB/s | PCIe only | NVLink on B300 only |
| Board power | 1,100 W | 350 W | 3.1x higher on B300 |
| Released | Q1 2025 | Q2 2021 | 4 years newer on B300 |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: B300 datasheet and RTX 3080 Ti datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | B300 /GPU/hr | RTX 3080 Ti /GPU/hr |
|---|---|---|
Runpod
|
On-Demand $7.89 | On-Demand $0.18 |
GPU.ai
|
On-Demand $7.89 | -- |
Vast.ai
|
On-Demand $12.13 | -- |
Spheron
|
Spot $5.85 | -- |
GPUaaS
|
Custom on request | -- |
Packet·ai
|
Custom on request | -- |
Impossible Cloud
|
Reserved (60mo) $4.32 | -- |
Canopy Wave
|
Custom on request | -- |
Salad
|
-- | On-Demand $0.20 |
Exoscale
|
-- | On-Demand $0.79 |
32 providers list the B300 and 3 the RTX 3080 Ti. Every listing is on the B300 page and the RTX 3080 Ti page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia B300 was last updated on Sept. 7, 2026, and for Nvidia RTX 3080 Ti on Sept. 7, 2026.