The B300 is newer, with 24x the memory and 33x the bandwidth. The K80 is cheaper right now.
At a glance
Memory
24x more on B300
- B300
- 288 GB
- K80
- 12 GB
Memory bandwidth
33x higher on B300
- B300
- 8,000 GB/s
- K80
- 240 GB/s
Cheapest on-demand
82% cheaper on K80
- B300
- $4.99 /GPU/hr
- K80
- $0.90 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | B300 | K80 | Difference |
|---|---|---|---|
| On-demand | $9.15 /GPU/hr from $4.99 | -- /GPU/hr from $0.90 | |
| Reserved | $5.78 /GPU/hr from $4.25 | -- /GPU/hr from $0.04 (24 mo) | |
| Spot | $5.72 /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. No median for on-demand and reserved on the K80: 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 K80 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B300 | K80 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 12 GB GDDR5 | 24x more on B300 |
| Bandwidth | 8,000 GB/s | 240 GB/s | 33x 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 | Not supported | B300 only |
| FP16 / BF16 | 2,250 TFLOPS | Not supported | B300 only |
| INT8 | 153.5 TOPS | Not supported | B300 only |
| FP32 | 75 TFLOPS | 4.4 TFLOPS | 17x higher on B300 |
| FP64 | 1.2 TFLOPS | 1.5 TFLOPS | 22% higher on K80 |
| Platform | |||
| Interconnect | NVLink 1,800 GB/s | PCIe only | NVLink on B300 only |
| Board power | 1,100 W | 150 W | 7.3x higher on B300 |
| Released | Q1 2025 | Q4 2014 | 10 years newer on B300 |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | FP32FP64 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: B300 datasheet and K80 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 | K80 |
|---|---|---|
Daytona
USA
|
$7.10 /GPU/hr On-demand | -- |
UpCloud
Finland
|
$7.99 /GPU/hr On-demand SXM | -- |
Lium
Distributed
|
$8.00 /GPU/hr On-demand SXM | -- |
Verda
Finland
|
$10.48 /GPU/hr On-demand SXM | -- |
Spheron
Singapore
|
$12.41 /GPU/hr On-demand SXM | -- |
Runcrate
USA
|
$14.30 /GPU/hr On-demand NVL | -- |
EmpirioLabs AI
USA
|
$16.00 /GPU/hr On-demand | -- |
GPUaaS
USA
|
$5.00 /GPU/hr Custom SXM | -- |
AWS
USA
|
-- | $0.90 /GPU/hr On-demand |
Database Mart
USA
|
-- | $0.0447 /GPU/hr Reserved |
37 providers list the B300 and 2 the K80. Every listing is on the B300 page and the K80 page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia K80 on Sept. 14, 2026.