A data center GPU against a workstation card, one Blackwell Ultra and one Maxwell: up to 288 GB HBM3e against 8 GB GDDR5, 42x the memory bandwidth on the B300, and NVLink 1,800 GB/s on the B300 where the M4000 is PCIe only.
At a glance
Memory
- B300
- 288 GB
- M4000
- 8 GB
36x more on B300
Memory bandwidth
- B300
- 8,000 GB/s
- M4000
- 192 GB/s
42x higher on B300
Cheapest on-demand
- B300
- $6.50 /GPU/hr
- M4000
- $0.45 /GPU/hr
14x more expensive on B300
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | B300 | M4000 | Difference |
|---|---|---|---|
| On-demand | $7.89 /GPU/hr from $6.50 | -- /GPU/hr from $0.45 | |
| Reserved | $5.71 /GPU/hr from $4.25 | No reserved listings | |
| Spot | $5.85 /GPU/hr from $4.30 | No spot listings |
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 M4000: 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 M4000 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | M4000 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 8 GB GDDR5 | 36x more on B300 |
| Bandwidth | 8,000 GB/s | 192 GB/s | 42x 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 | Not supported | B300 only |
| INT8 | 153.5 TOPS | Not supported | B300 only |
| FP32 | 75 TFLOPS | 2.6 TFLOPS | 29x 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 | 120 W | 9.2x higher on B300 |
| Released | Q1 2025 | Q2 2015 | 10 years newer on B300 |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | FP32 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: B300 datasheet and M4000 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | B300 /GPU/hr | M4000 /GPU/hr |
|---|---|---|
GPU.ai
|
On-Demand $7.89 | -- |
Runpod
|
On-Demand $7.89 | -- |
Lium
|
On-Demand $8.00 | -- |
Vast.ai
|
On-Demand $8.75 | -- |
EmpirioLabs AI
|
On-Demand $16.00 | -- |
Spheron
|
Spot $5.85 | -- |
GPUaaS
|
Custom on request | -- |
Packet·ai
|
Custom on request | -- |
Paperspace
|
-- | On-Demand $0.45 |
33 providers list the B300 and 1 the M4000. Every listing is on the B300 page and the M4000 page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia B300 was last updated on Sept. 7, 2026, and for Nvidia M4000 on Sept. 7, 2026.