The P40 has 3x the memory and 42% more bandwidth. The P4000 is cheaper right now.

At a glance

Memory

3x more on P40

P40
24 GB
P4000
8 GB

Memory bandwidth

42% higher on P40

P40
346 GB/s
P4000
243 GB/s

Cheapest on-demand

51% cheaper on P4000

P40
$0.11 /GPU/hr
P4000
$0.05 /GPU/hr

Price comparison

Median price per GPU per hour by billing type, with the cheapest listing under it.

Billing P40 P4000 Difference
On-demand -- /GPU/hr from $0.11 -- /GPU/hr from $0.05
Reserved No reserved listings -- /GPU/hr from $0.04 (1 mo)
Spot -- /GPU/hr from $0.07 -- /GPU/hr from $0.04

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 on-demand, reserved and spot on the P4000: 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 P4000 price history

Weekly median on-demand price per GPU per hour

Last 13 months
Aggregating historical prices...

Specs comparison

Spec P40 P4000 Difference
Memory
Capacity 24 GB GDDR5 8 GB GDDR5 3x more on P40
Bandwidth 346 GB/s 243 GB/s 42% higher on P40
Bus width 384-bit 256-bit 50% wider on P40
Compute · dense
INT8 47 TOPS Not supported P40 only
FP32 12 TFLOPS 5.3 TFLOPS 2.3x higher on P40
Platform
Interconnect PCIe only PCIe only
Board power 250 W 105 W 2.4x higher on P40
Released Q3 2016 Q1 2017
Precision
Supported formats FP16FP32INT8 FP16FP32

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

Source: P40 datasheet and P4000 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 P40 was last updated on Sept. 14, 2026, and for Nvidia P4000 on Sept. 14, 2026.