A workstation GPU against a data center card, one Ampere and one Blackwell Ultra: 16 GB GDDR6 against up to 288 GB HBM3e, 18x the memory bandwidth on the B300, and NVLink 1,800 GB/s on the B300 where the A4000 is PCIe only.
At a glance
Memory
- A4000
- 16 GB
- B300
- 288 GB
18x more on B300
Memory bandwidth
- A4000
- 448 GB/s
- B300
- 8,000 GB/s
18x higher on B300
Cheapest on-demand
- A4000
- $0.15 /GPU/hr
- B300
- $6.50 /GPU/hr
43x more expensive on B300
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A4000 | B300 | Difference |
|---|---|---|---|
| On-demand | $0.21 /GPU/hr from $0.15 | $7.89 /GPU/hr from $6.50 | 38x more expensive on B300 |
| Reserved | $0.25 /GPU/hr from $0.11 | $5.71 /GPU/hr from $4.25 | 23x more expensive on B300 |
| Spot | -- /GPU/hr from $0.10 | $5.85 /GPU/hr from $4.30 |
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 spot on the A4000: 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
A4000 vs B300 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A4000 | B300 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 16 GB GDDR6 | 288 GB HBM3e | 18x more on B300 |
| Bandwidth | 448 GB/s | 8,000 GB/s | 18x higher on B300 |
| Bus width | 256-bit | 8,192-bit | 32x wider on B300 |
| Compute · dense | |||
| FP4 | Not supported | 14,000 TFLOPS | B300 only |
| FP8 | Not supported | 4,500 TFLOPS | B300 only |
| FP16 / BF16 | 76.7 TFLOPS | 2,250 TFLOPS | 29x higher on B300 |
| INT8 | 153.5 TOPS | ||
| FP32 | 19.2 TFLOPS | 75 TFLOPS | 3.9x higher on B300 |
| FP64 | Not supported | 1.2 TFLOPS | B300 only |
| Platform | |||
| Interconnect | PCIe only | NVLink 1,800 GB/s | NVLink on B300 only |
| Board power | 140 W | 1,100 W | 7.9x higher on B300 |
| Released | Q2 2021 | Q1 2025 | 4 years newer on B300 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A4000 datasheet and B300 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | A4000 /GPU/hr | B300 /GPU/hr |
|---|---|---|
Vast.ai
|
Spot $0.10 | On-Demand $8.75 |
Runcrate
|
On-Demand $0.17 | -- |
Sesterce
|
On-Demand $0.88 | -- |
Hyperstack
|
On-Demand $0.15 | -- |
TensorDock
|
On-Demand $0.21 | -- |
Paperspace
|
On-Demand $0.76 | -- |
Database Mart
|
Reserved (24mo) $0.17 | -- |
Cirrascale
|
Reserved (12mo) $0.28 | -- |
GPU.ai
|
-- | On-Demand $7.89 |
Runpod
|
-- | On-Demand $7.89 |
Lium
|
-- | On-Demand $8.00 |
EmpirioLabs AI
|
-- | On-Demand $16.00 |
Spheron
|
-- | Spot $5.85 |
GPUaaS
|
-- | Custom on request |
Packet·ai
|
-- | Custom on request |
12 providers list the A4000 and 33 the B300. Every listing is on the A4000 page and the B300 page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia A4000 was last updated on Sept. 7, 2026, and for Nvidia B300 on Sept. 7, 2026.