Two Nvidia data center GPUs, one Blackwell Ultra and one Turing: up to 288 GB HBM3e against 16 GB GDDR6, 25x the memory bandwidth on the B300, and NVLink 1,800 GB/s on the B300 where the T4G is PCIe only.
At a glance
Updated 6 minutes ago- Memory
- 288 GB
- HBM3e
- Memory bandwidth
- 8.00 TB/s
- From
- $6.50 /GPU/hr
- 30 providers
- Memory
- 16 GB
- GDDR6
- Memory bandwidth
- 320 GB/s
- From
- $0.42 /GPU/hr
- 1 provider
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | B300 | T4G | Difference |
|---|---|---|---|
| On-demand | $6.50 | $0.42 | 15x more expensive on B300 |
| Spot | $2.99 | No spot listings | |
| Reserved | $4.25 | $0.18 | 23x more expensive on B300 |
| Median | $7.87 | $1.10 | 7.2x 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 T4G price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | T4G | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 16 GB GDDR6 | 18x more on B300 |
| Bandwidth | 8,000 GB/s | 320 GB/s | 25x higher on B300 |
| Bus width | 8,192-bit | 256-bit | 32x 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 | 65 TFLOPS | 35x higher on B300 |
| INT8 | 153.5 TOPS | 130 TOPS | 1.2x higher on B300 |
| FP32 | 75 TFLOPS | 8.1 TFLOPS | 9.3x 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 | 70 W | 16x higher on B300 |
| Released | Q1 2025 | Q3 2020 | 5 years newer on B300 |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | FP16FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: B300 datasheet and T4G datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | B300 /GPU/hr | T4G /GPU/hr |
|---|---|---|
GPU.ai
|
On-Demand $7.89 | -- |
Runpod
|
On-Demand $7.89 | -- |
Lyceum
|
On-Demand $7.99 | -- |
GPUaaS
|
Custom on request | -- |
Packet·ai
|
Custom on request | -- |
Impossible Cloud
|
Reserved (60mo) $4.32 | -- |
Canopy Wave
|
Custom on request | -- |
Bentaus
|
On-Demand $6.50 | -- |
AWS
|
-- | On-Demand $0.42 |
30 providers list the B300 and 1 the T4G. Every listing is on the B300 page and the T4G page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia B300 was last updated on Sept. 7, 2026, and for Nvidia T4G on Sept. 7, 2026.