The RTX 3090 is newer, with 2x the memory and 3.9x the bandwidth, and is cheaper right now.
At a glance
Memory
2x more on RTX 3090
- K80
- 12 GB
- RTX 3090
- 24 GB
Memory bandwidth
3.9x higher on RTX 3090
- K80
- 240 GB/s
- RTX 3090
- 936 GB/s
Cheapest on-demand
89% cheaper on RTX 3090
- K80
- $0.90 /GPU/hr
- RTX 3090
- $0.10 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | K80 | RTX 3090 | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $0.90 | $0.19 /GPU/hr from $0.10 | |
| Reserved | -- /GPU/hr from $0.04 (24 mo) | -- /GPU/hr from $0.06 (1 mo) | |
| Spot | No spot listings | -- /GPU/hr from $0.05 |
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 3090: 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 3090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | K80 | RTX 3090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 12 GB GDDR5 | 24 GB GDDR6X | 2x more on RTX 3090 |
| Bandwidth | 240 GB/s | 936 GB/s | 3.9x higher on RTX 3090 |
| Bus width | 384-bit | 384-bit | Identical |
| Compute · dense | |||
| FP16 / BF16 | Not supported | 71.2 TFLOPS | RTX 3090 only |
| INT8 | Not supported | 284.7 TOPS | RTX 3090 only |
| FP32 | 4.4 TFLOPS | 35.6 TFLOPS | 8.1x higher on RTX 3090 |
| FP64 | 1.5 TFLOPS | Not supported | K80 only |
| Platform | |||
| Interconnect | PCIe only | NVLink 112 GB/s | NVLink on RTX 3090 only |
| Board power | 150 W | 350 W | 2.3x higher on RTX 3090 |
| Released | Q4 2014 | Q3 2020 | 6 years newer on RTX 3090 |
| Precision | |||
| Supported formats | FP32FP64 | FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: K80 datasheet and RTX 3090 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 3090 |
|---|---|---|
AWS
USA
|
$0.90 /GPU/hr On-demand | -- |
Database Mart
USA
|
$0.0447 /GPU/hr Reserved | -- |
HyperAI
Hong Kong
|
-- | $0.10 /GPU/hr On-demand |
Vast.ai
USA
|
-- | $0.14 /GPU/hr On-demand |
GPU.ai
UAE
|
-- | $0.15 /GPU/hr On-demand |
Lium
Distributed
|
-- | $0.16 /GPU/hr On-demand |
Runpod
USA
|
-- | $0.22 /GPU/hr On-demand |
Salad
Distributed
|
-- | $0.17 /GPU/hr On-demand |
SwissGPU
Switzerland
|
-- | $0.30 /GPU/hr On-demand |
TensorDock
Distributed
|
-- | $0.31 /GPU/hr On-demand |
2 providers list the K80 and 9 the RTX 3090. Every listing is on the K80 page and the RTX 3090 page.
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 5090
32 GB GDDR7 · 91% more bandwidth than the RTX 3090
From $0.35 /GPU/hr Compare
-
Nvidia RTX 4090
24 GB GDDR6X · PCIe only
From $0.33 /GPU/hr Compare
Our data for Nvidia K80 was last updated on Sept. 14, 2026, and for Nvidia RTX 3090 on Sept. 14, 2026.