The L40 is newer, with 24x the memory and 30x the bandwidth.

At a glance

Memory

24x more on L40

K620
2 GB
L40
48 GB

Memory bandwidth

30x higher on L40

K620
29 GB/s
L40
864 GB/s

Cheapest on-demand

K620
--
L40
$0.46 /GPU/hr

Price comparison

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

Billing K620 L40 Difference
On-demand No on-demand listings $1.05 /GPU/hr from $0.46
Reserved No reserved listings -- /GPU/hr from $0.70
Spot No spot listings $0.78 /GPU/hr from $0.40

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: 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

K620 vs L40 price history

Weekly median on-demand price per GPU per hour

Last 17 months
Aggregating historical prices...

Specs comparison

Spec K620 L40 Difference
Memory
Capacity 2 GB DDR3 48 GB GDDR6 24x more on L40
Bandwidth 29 GB/s 864 GB/s 30x higher on L40
Bus width 128-bit 384-bit 3x wider on L40
Compute · dense
FP8 Not supported 362 TFLOPS L40 only
FP16 / BF16 Not supported 181.1 TFLOPS L40 only
INT8 Not supported 362 TOPS L40 only
FP32 0.9 TFLOPS 90.5 TFLOPS 105x higher on L40
Platform
Interconnect PCIe only PCIe only
Board power 45 W 300 W 6.7x higher on L40
Released Q3 2014 Q4 2022 8 years newer on L40
Precision
Supported formats FP32 FP8FP16BF16TF32FP32INT4INT8

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

Source: K620 datasheet and L40 datasheet.

Where to rent them

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

0 providers list the K620 and 13 the L40. Every listing is on the K620 page and the L40 page.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia K620 was last updated on Sept. 14, 2026, and for Nvidia L40 on Sept. 14, 2026.