The B300 is newer, with 6x the memory and 9.3x the bandwidth. The L40S is typically cheaper.
At a glance
Memory
6x more on B300
- B300
- 288 GB
- L40S
- 48 GB
Memory bandwidth
9.3x higher on B300
- B300
- 8,000 GB/s
- L40S
- 864 GB/s
Cheapest on-demand
89% cheaper on L40S
- B300
- $4.99 /GPU/hr
- L40S
- $0.55 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | B300 | L40S | Difference |
|---|---|---|---|
| On-demand | $9.15 /GPU/hr from $4.99 | $1.57 /GPU/hr from $0.55 | 83% cheaper on L40S |
| Reserved | $5.78 /GPU/hr from $4.25 | $1.10 /GPU/hr from $0.61 (12 mo) | 81% cheaper on L40S |
| Spot | $5.72 /GPU/hr from $4.08 | $0.99 /GPU/hr from $0.74 | 83% cheaper on L40S |
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 L40S price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | L40S | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 48 GB GDDR6 | 6x more on B300 |
| Bandwidth | 8,000 GB/s | 864 GB/s | 9.3x higher on B300 |
| Bus width | 8,192-bit | 384-bit | 21x wider on B300 |
| Compute · dense | |||
| FP4 | 14,000 TFLOPS | Not supported | B300 only |
| FP8 | 4,500 TFLOPS | 733 TFLOPS | 6.1x higher on B300 |
| FP16 / BF16 | 2,250 TFLOPS | 362.1 TFLOPS | 6.2x higher on B300 |
| INT8 | 153.5 TOPS | 733 TOPS | 4.8x higher on L40S |
| FP32 | 75 TFLOPS | 91.6 TFLOPS | 22% higher on L40S |
| 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 | 350 W | 3.1x 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 L40S datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.
| Provider | B300 | L40S |
|---|---|---|
|
|
$8.00 /GPU/hr On-demand SXM | $0.75 /GPU/hr On-demand PCIe |
|
|
$14.30 /GPU/hr On-demand NVL | $1.14 /GPU/hr On-demand PCIe |
|
|
$7.10 /GPU/hr On-demand | -- |
|
|
$7.99 /GPU/hr On-demand SXM | -- |
|
|
$10.48 /GPU/hr On-demand SXM | -- |
|
|
$12.41 /GPU/hr On-demand SXM | -- |
|
|
$16.00 /GPU/hr On-demand | -- |
|
|
$5.00 /GPU/hr Custom SXM | -- |
|
|
-- | $0.55 /GPU/hr On-demand |
|
|
-- | $0.79 /GPU/hr On-demand |
|
|
-- | $0.80 /GPU/hr On-demand |
|
|
-- | $0.92 /GPU/hr On-demand |
|
|
-- | $0.97 /GPU/hr On-demand |
|
|
-- | $0.97 /GPU/hr On-demand |
37 providers list the B300 and 38 the L40S. Every listing is on the B300 page and the L40S page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia L40S on Sept. 14, 2026.