The P40 has 2.4x the memory, while the RTX 3080 is newer and has 2.2x the bandwidth. The RTX 3080 is cheaper right now.
At a glance
Memory
2.4x more on P40
- P40
- 24 GB
- RTX 3080
- 10 GB
Memory bandwidth
2.2x higher on RTX 3080
- P40
- 346 GB/s
- RTX 3080
- 760 GB/s
Cheapest on-demand
8% cheaper on RTX 3080
- P40
- $0.11 /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 | P40 | RTX 3080 | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $0.11 | $0.15 /GPU/hr from $0.10 | |
| Reserved | No reserved listings | -- /GPU/hr from $0.14 (3 mo) | |
| Spot | -- /GPU/hr from $0.07 | -- /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 spot on the P40 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
P40 vs RTX 3080 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | P40 | RTX 3080 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 24 GB GDDR5 | 10 GB GDDR6X | 2.4x more on P40 |
| Bandwidth | 346 GB/s | 760 GB/s | 2.2x higher on RTX 3080 |
| Bus width | 384-bit | 320-bit | 20% wider on P40 |
| Compute · dense | |||
| FP16 / BF16 | 59.5 TFLOPS | ||
| INT8 | 47 TOPS | 238 TOPS | 5.1x higher on RTX 3080 |
| FP32 | 12 TFLOPS | 29.8 TFLOPS | 2.5x higher on RTX 3080 |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 250 W | 320 W | 28% higher on RTX 3080 |
| Released | Q3 2016 | Q3 2020 | 4 years newer on RTX 3080 |
| Precision | |||
| Supported formats | FP16FP32INT8 | 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: P40 datasheet and RTX 3080 datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.
| Provider | P40 | RTX 3080 |
|---|---|---|
Vast.ai
USA
|
$0.11 /GPU/hr On-demand | $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 L4
24 GB GDDR6 · 13% less bandwidth than the P40
From $0.32 /GPU/hr Compare -
Nvidia T4
16 GB GDDR6 · 13% less bandwidth than the P40
From $0.15 /GPU/hr Compare
-
Nvidia A10
24 GB GDDR6 · 73% more bandwidth than the P40
From $1.00 /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 P40 was last updated on Sept. 14, 2026, and for Nvidia RTX 3080 on Sept. 14, 2026.