The K80 has 20% more memory, while the RTX 3080 is newer and has 3.2x the bandwidth. The RTX 3080 is cheaper right now.
At a glance
Memory
20% more on K80
- K80
- 12 GB
- RTX 3080
- 10 GB
Memory bandwidth
3.2x higher on RTX 3080
- K80
- 240 GB/s
- RTX 3080
- 760 GB/s
Cheapest on-demand
89% cheaper on RTX 3080
- K80
- $0.90 /GPU/hr
- RTX 3080
- $0.10 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | K80 | RTX 3080 | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $0.90 | $0.15 /GPU/hr from $0.10 | |
| Reserved | -- /GPU/hr from $0.04 (24 mo) | -- /GPU/hr from $0.14 (3 mo) | |
| Spot | No spot listings | -- /GPU/hr from $0.06 |
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 and reserved and spot on the RTX 3080: 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
K80 vs RTX 3080 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | K80 | RTX 3080 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 12 GB GDDR5 | 10 GB GDDR6X | 20% more on K80 |
| Bandwidth | 240 GB/s | 760 GB/s | 3.2x higher on RTX 3080 |
| Bus width | 384-bit | 320-bit | 20% wider on K80 |
| Compute · dense | |||
| FP16 / BF16 | Not supported | 59.5 TFLOPS | RTX 3080 only |
| INT8 | Not supported | 238 TOPS | RTX 3080 only |
| FP32 | 4.4 TFLOPS | 29.8 TFLOPS | 6.8x higher on RTX 3080 |
| FP64 | 1.5 TFLOPS | Not supported | K80 only |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 150 W | 320 W | 2.1x higher on RTX 3080 |
| Released | Q4 2014 | Q3 2020 | 6 years newer on RTX 3080 |
| Precision | |||
| Supported formats | FP32FP64 | FP16BF16TF32FP32INT4INT8 | |
Figures are for each model's headline configuration. Where a form factor carries a different number, it is named under the figure.
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: K80 datasheet and RTX 3080 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 | K80 | RTX 3080 |
|---|---|---|
AWS
USA
|
$0.90 /GPU/hr On-demand | -- |
Database Mart
USA
|
$0.0447 /GPU/hr Reserved | -- |
Vast.ai
USA
|
-- | $0.10 /GPU/hr On-demand |
GPU.ai
UAE
|
-- | $0.11 /GPU/hr On-demand |
Theta EdgeCloud
Distributed
|
-- | $0.16 /GPU/hr On-demand |
Runpod
USA
|
-- | $0.17 /GPU/hr On-demand |
Salad
Distributed
|
-- | $0.14 /GPU/hr On-demand |
Similar GPUs
Other comparisons in the same class.
-
Nvidia V100
32 GB HBM2 · 3.8x the bandwidth of the K80
From $0.09 /GPU/hr Compare -
Nvidia T4
16 GB GDDR6 · 25% more bandwidth than the K80
From $0.15 /GPU/hr Compare
-
Nvidia P100
16 GB HBM2 · 3x the bandwidth of the K80
From $0.10 /GPU/hr Compare
-
Nvidia RTX 4070
12 GB GDDR6X · 34% less bandwidth than the RTX 3080
From $0.11 /GPU/hr Compare
-
Nvidia RTX 3080 Ti
12 GB GDDR6X · 20% more bandwidth than the RTX 3080
From $0.11 /GPU/hr Compare
Our data for Nvidia K80 was last updated on Sept. 14, 2026, and for Nvidia RTX 3080 on Sept. 14, 2026.