Both have 24 GB of memory. The RTX 4090 has 3.4x the bandwidth and is typically cheaper.

At a glance

Memory

Identical

L4
24 GB
RTX 4090
24 GB

Memory bandwidth

3.4x higher on RTX 4090

L4
300 GB/s
RTX 4090
1,010 GB/s

Cheapest on-demand

Within 5%

L4
$0.27 /GPU/hr
RTX 4090
$0.26 /GPU/hr

Price comparison

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

Billing L4 RTX 4090 Difference
On-demand $0.88 /GPU/hr from $0.27 $0.46 /GPU/hr from $0.26 47% cheaper on RTX 4090
Reserved $0.52 /GPU/hr from $0.32 (36 mo) $0.52 /GPU/hr from $0.24 (48 mo) Within 5%
Spot $0.29 /GPU/hr from $0.13 $0.33 /GPU/hr from $0.16 13% cheaper on L4

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. Verify before provisioning. More on how we price.

Price history

L4 vs RTX 4090 price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec L4 RTX 4090 Difference
Memory
Capacity 24 GB GDDR6 24 GB GDDR6X Identical
Bandwidth 300 GB/s 1,010 GB/s 3.4x higher on RTX 4090
Bus width 192-bit 384-bit 2x wider on RTX 4090
Compute · dense
FP8 242 TFLOPS 330.3 TFLOPS 36% higher on RTX 4090
FP16 / BF16 121 TFLOPS 165.2 TFLOPS 37% higher on RTX 4090
INT8 242 TOPS 660.6 TOPS 2.7x higher on RTX 4090
FP32 30.3 TFLOPS 82.6 TFLOPS 2.7x higher on RTX 4090
Platform
Interconnect PCIe only PCIe only
Board power 72 W 450 W 6.2x higher on RTX 4090
Released Q1 2023 Q4 2022
Precision
Supported formats FP8FP16BF16TF32FP32INT4INT8 FP8FP16BF16TF32FP32INT4INT8

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

Source: L4 datasheet and RTX 4090 datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.

21 providers list the L4 and 21 the RTX 4090. Every listing is on the L4 page and the RTX 4090 page.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia L4 was last updated on Sept. 14, 2026, and for Nvidia RTX 4090 on Sept. 14, 2026.