The B300 is newer, with 3.6x the memory and 4x the bandwidth.
At a glance
Memory
3.6x more on B300
- B300
- 288 GB
- H800
- 80 GB
Memory bandwidth
4x higher on B300
- B300
- 8.00 TB/s
- H800
- 2.00 TB/s
Cheapest on-demand
- B300
- $4.99 /GPU/hr
- H800
- --
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | B300 | H800 | Difference |
|---|---|---|---|
| On-demand | $8.50 /GPU/hr from $4.99 | No on-demand listings | |
| Reserved | $6.50 /GPU/hr from $4.25 | No reserved listings | |
| Spot | $5.20 /GPU/hr from $2.99 | 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. Verify before provisioning. More on how we price.
Price history
B300 vs H800 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | H800 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 80 GB HBM2e | 3.6x more on B300 |
| Bandwidth | 8,000 GB/s | 2,000 GB/s | 4x higher on B300 |
| Bus width | 8,192-bit | 5,120-bit | 60% wider on B300 |
| Compute · dense | |||
| FP4 | 14,000 TFLOPS | Not supported | B300 only |
| FP8 | 4,500 TFLOPS | 1,513 TFLOPS | 3x higher on B300 |
| FP16 / BF16 | 2,250 TFLOPS | 756.5 TFLOPS | 3x higher on B300 |
| INT8 | 153.5 TOPS | 1,513 TOPS | 9.9x higher on H800 |
| FP32 | 75 TFLOPS | 51 TFLOPS | 47% higher on B300 |
| FP64 | 1.2 TFLOPS | ||
| Platform | |||
| Interconnect | NVLink 1,800 GB/s | NVLink 400 GB/s | 4.5x higher on B300 |
| Board power | 1,100 W | 350 W | 3.1x higher on B300 |
| Released | Q1 2025 | Q1 2023 | 2 years newer on B300 |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | FP8FP16BF16TF32FP32FP64INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: B300 datasheet .
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.
| Provider | B300 | H800 |
|---|---|---|
Daytona
USA
|
$7.10 /GPU/hr On-demand | -- |
Lium
Distributed
|
$7.85 /GPU/hr On-demand SXM | -- |
GPU.ai
UAE
|
$7.89 /GPU/hr On-demand SXM | -- |
Runpod
USA
|
$7.89 /GPU/hr On-demand SXM | -- |
Lyceum
Germany
|
$7.99 /GPU/hr On-demand | -- |
Verda
Finland
|
$8.71 /GPU/hr On-demand SXM | -- |
Vast.ai
USA
|
$9.94 /GPU/hr On-demand | -- |
EmpirioLabs AI
USA
|
$15.70 /GPU/hr On-demand | -- |
34 providers list the B300 and 0 the H800. Every listing is on the B300 page and the H800 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 58% less bandwidth than the B300
From $1.30 /GPU/hr Compare -
Nvidia B200
180 GB HBM3e · released Q1 2024
From $3.75 /GPU/hr Compare
-
Nvidia H200
141 GB HBM3e · 40% less bandwidth than the B300
From $2.09 /GPU/hr Compare
Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia H800 on Sept. 14, 2026.