The L40 has 2x the memory and 2x the bandwidth, and is cheaper right now.

At a glance

Memory

2x more on L40

L40
48 GB
RTX PRO 4000 SFF
24 GB

Memory bandwidth

2x higher on L40

L40
864 GB/s
RTX PRO 4000 SFF
432 GB/s

Cheapest on-demand

13% cheaper on L40

L40
$0.33 /GPU/hr
RTX PRO 4000 SFF
$0.38 /GPU/hr

Price comparison

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

Billing L40 RTX PRO 4000 SFF Difference
On-demand $0.86 /GPU/hr from $0.33 -- /GPU/hr from $0.38
Reserved -- /GPU/hr from $0.70 No reserved listings
Spot $0.80 /GPU/hr from $0.77 No spot listings

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 reserved on the L40 and on-demand on the RTX PRO 4000 SFF: 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

L40 vs RTX PRO 4000 SFF price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec L40 RTX PRO 4000 SFF Difference
Memory
Capacity 48 GB GDDR6 24 GB GDDR7 2x more on L40
Bandwidth 864 GB/s 432 GB/s 2x higher on L40
Bus width 384-bit 192-bit 2x wider on L40
Compute · dense
FP4 Not supported 385 TFLOPS RTX PRO 4000 SFF only
FP8 362 TFLOPS 192.5 TFLOPS 88% higher on L40
FP16 / BF16 181.1 TFLOPS 96.3 TFLOPS 88% higher on L40
INT8 362 TOPS 192.5 TOPS 88% higher on L40
FP32 90.5 TFLOPS 24 TFLOPS 3.8x higher on L40
Platform
Interconnect PCIe only PCIe only
Board power 300 W 70 W 4.3x higher on L40
Released Q4 2022 Q3 2025 3 years newer on RTX PRO 4000 SFF
Precision
Supported formats FP8FP16BF16TF32FP32INT4INT8 FP4FP8FP16BF16TF32FP32INT8

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

Source: L40 datasheet and RTX PRO 4000 SFF datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.

12 providers list the L40 and 1 the RTX PRO 4000 SFF. Every listing is on the L40 page and the RTX PRO 4000 SFF page.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia L40 was last updated on Sept. 14, 2026, and for Nvidia RTX PRO 4000 SFF on Nov. 9, 2026.