A data center GPU against a workstation card, one Blackwell Ultra and one Ada Lovelace: up to 288 GB HBM3e against 20 GB GDDR6, 22x the memory bandwidth on the B300, and NVLink 1,800 GB/s on the B300 where the RTX 4000 Ada is PCIe only.
At a glance
Updated 3 minutes ago- Memory
- 288 GB
- HBM3e
- Memory bandwidth
- 8.00 TB/s
- From
- $6.50 /GPU/hr
- 31 providers
- Memory
- 20 GB
- GDDR6
- Memory bandwidth
- 360 GB/s
- From
- $0.52 /GPU/hr
- 4 providers
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | B300 | RTX 4000 Ada | Difference |
|---|---|---|---|
| On-demand | $6.50 | $0.52 | 12x more expensive on B300 |
| Spot | $4.30 | No spot listings | |
| Reserved | $4.25 | No reserved listings | |
| Median | $7.85 | $0.75 | 10x 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 4000 Ada price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | RTX 4000 Ada | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 20 GB GDDR6 | 14x more on B300 |
| Bandwidth | 8,000 GB/s | 360 GB/s | 22x higher on B300 |
| Bus width | 8,192-bit | 160-bit | 51x wider on B300 |
| Compute · dense | |||
| FP4 | 14,000 TFLOPS | Not supported | B300 only |
| FP8 | 4,500 TFLOPS | 213.8 TFLOPS | 21x higher on B300 |
| FP16 / BF16 | 2,250 TFLOPS | 106.9 TFLOPS | 21x higher on B300 |
| INT8 | 153.5 TOPS | ||
| FP32 | 75 TFLOPS | 26.7 TFLOPS | 2.8x 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 | 130 W | 8.5x higher on B300 |
| Released | Q1 2025 | Q3 2023 | 2 years newer on B300 |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: B300 datasheet and RTX 4000 Ada 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 4000 Ada /GPU/hr |
|---|---|---|
Runpod
|
On-Demand $7.89 | Reservation on request |
GPU.ai
|
On-Demand $7.89 | -- |
Spheron
|
Spot $5.85 | -- |
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 | -- |
Akamai Cloud
|
-- | On-Demand $0.52 |
DigitalOcean
|
-- | On-Demand $0.76 |
Sesterce
|
-- | On-Demand $0.87 |
31 providers list the B300 and 4 the RTX 4000 Ada. Every listing is on the B300 page and the RTX 4000 Ada 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 4000 Ada on Sept. 7, 2026.