Both have about the same bandwidth. The P40 has 20% more memory and is cheaper right now.
At a glance
Memory
20% more on P40
- P40
- 24 GB
- RTX 4000 Ada
- 20 GB
Memory bandwidth
Within 5%
- P40
- 346 GB/s
- RTX 4000 Ada
- 360 GB/s
Cheapest on-demand
46% cheaper on P40
- P40
- $0.11 /GPU/hr
- RTX 4000 Ada
- $0.20 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | P40 | RTX 4000 Ada | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $0.11 | $0.51 /GPU/hr from $0.20 | |
| Reserved | No reserved listings | -- /GPU/hr from $0.18 (3 mo) | |
| Spot | -- /GPU/hr from $0.07 | -- /GPU/hr from $0.13 |
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 4000 Ada: 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 4000 Ada price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | P40 | RTX 4000 Ada | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 24 GB GDDR5 | 20 GB GDDR6 | 20% more on P40 |
| Bandwidth | 346 GB/s | 360 GB/s | Within 5% |
| Bus width | 384-bit | 160-bit | 2.4x wider on P40 |
| Compute · dense | |||
| FP8 | Not supported | 213.8 TFLOPS | RTX 4000 Ada only |
| FP16 / BF16 | 106.9 TFLOPS | ||
| INT8 | 47 TOPS | ||
| FP32 | 12 TFLOPS | 26.7 TFLOPS | 2.2x higher on RTX 4000 Ada |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 250 W | 130 W | 92% higher on P40 |
| Released | Q3 2016 | Q3 2023 | 7 years newer on RTX 4000 Ada |
| Precision | |||
| Supported formats | FP16FP32INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: P40 datasheet and RTX 4000 Ada 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 4000 Ada |
|---|---|---|
Vast.ai
USA
|
$0.11 /GPU/hr On-demand | $0.20 /GPU/hr On-demand |
Runpod
USA
|
-- | $0.28 /GPU/hr On-demand |
Akamai Cloud
USA
|
-- | $0.52 /GPU/hr On-demand |
DigitalOcean
USA
|
-- | $0.76 /GPU/hr On-demand |
Sesterce
France
|
-- | $0.87 /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 $0.23 /GPU/hr Compare
-
Nvidia A4000
16 GB GDDR6 · 24% more bandwidth than the RTX 4000 Ada
From $0.07 /GPU/hr Compare
Our data for Nvidia P40 was last updated on Sept. 14, 2026, and for Nvidia RTX 4000 Ada on Sept. 14, 2026.