The GB300 is newer, with 24x the memory and 33x the bandwidth. The K80 is cheaper right now.

At a glance

Memory

24x more on GB300

GB300
288 GB
K80
12 GB

Memory bandwidth

33x higher on GB300

GB300
8,000 GB/s
K80
240 GB/s

Cheapest on-demand

95% cheaper on K80

GB300
$18.00 /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 GB300 K80 Difference
On-demand -- /GPU/hr from $18.00 -- /GPU/hr from $0.90
Reserved On request -- /GPU/hr from $0.04 (24 mo)
Spot Sold out 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 GB300 and 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

GB300 vs K80 price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec GB300 K80 Difference
Memory
Capacity 288 GB HBM3e 12 GB GDDR5 24x more on GB300
Bandwidth 8,000 GB/s 240 GB/s 33x higher on GB300
Bus width 8,192-bit 384-bit 21x wider on GB300
Compute · dense
FP4 15,000 TFLOPS Not supported GB300 only
FP8 5,000 TFLOPS Not supported GB300 only
FP16 / BF16 2,500 TFLOPS Not supported GB300 only
INT8 165 TOPS Not supported GB300 only
FP32 80 TFLOPS 4.4 TFLOPS 18x higher on GB300
FP64 1.3 TFLOPS 1.5 TFLOPS 12% higher on K80
Platform
Interconnect NVLink 1,800 GB/s PCIe only NVLink on GB300 only
Board power 1,400 W 150 W 9.3x higher on GB300
Released Q1 2025 Q4 2014 10 years newer on GB300
Precision
Supported formats FP4FP6FP8FP16BF16TF32FP32FP64INT8 FP32FP64

Compute: Vendor peak figures, dense and per GPU. Not measured throughput.

Source: GB300 datasheet and K80 datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia GB300 was last updated on Sept. 14, 2026, and for Nvidia K80 on Sept. 14, 2026.