The B300 is newer, with 12x the memory and 19x the bandwidth.
At a glance
Memory
12x more on B300
- B300
- 288 GB
- RTX 4500 Ada
- 24 GB
Memory bandwidth
19x higher on B300
- B300
- 8,000 GB/s
- RTX 4500 Ada
- 432 GB/s
Cheapest on-demand
- B300
- $4.99 /GPU/hr
- RTX 4500 Ada
- --
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | B300 | RTX 4500 Ada | Difference |
|---|---|---|---|
| On-demand | $8.62 /GPU/hr from $4.99 | No on-demand listings | |
| Reserved | $5.47 /GPU/hr from $4.25 | No reserved listings | |
| Spot | $5.99 /GPU/hr from $4.08 | 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 RTX 4500 Ada price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | RTX 4500 Ada | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 24 GB GDDR6 | 12x more on B300 |
| Bandwidth | 8,000 GB/s | 432 GB/s | 19x higher on B300 |
| Bus width | 8,192-bit | 192-bit | 43x wider on B300 |
| Compute · dense | |||
| FP4 | 14,000 TFLOPS | Not supported | B300 only |
| FP8 | 4,500 TFLOPS | 317 TFLOPS | 14x higher on B300 |
| FP16 / BF16 | 2,250 TFLOPS | 158.5 TFLOPS | 14x higher on B300 |
| INT8 | 153.5 TOPS | ||
| FP32 | 75 TFLOPS | 39.6 TFLOPS | 89% 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 | 210 W | 5.2x 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 4500 Ada 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 | RTX 4500 Ada |
|---|---|---|
|
|
$7.10 /GPU/hr On-demand | -- |
|
|
$7.99 /GPU/hr On-demand SXM | -- |
|
|
$8.00 /GPU/hr On-demand SXM | -- |
|
|
$14.30 /GPU/hr On-demand NVL | -- |
|
|
$16.00 /GPU/hr On-demand | -- |
|
|
$5.40 /GPU/hr Spot SXM | -- |
|
|
$5.97 /GPU/hr Spot SXM | -- |
|
|
$5.00 /GPU/hr Custom SXM | -- |
37 providers list the B300 and 0 the RTX 4500 Ada. Every listing is on the B300 page and the RTX 4500 Ada page.
Similar GPUs
Other comparisons in the same class.
-
-
-
-
Nvidia L4
24 GB GDDR6 · 31% less bandwidth than the RTX 4500 Ada
On-demand from $0.33 /GPU/hr -
Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia RTX 4500 Ada on Sept. 14, 2026.