The RTX 4090 is newer and has 8% more bandwidth, with the same 24 GB of memory. The RTX 3090 is typically cheaper.

At a glance

Memory

Identical

RTX 3090
24 GB
RTX 4090
24 GB

Memory bandwidth

8% higher on RTX 4090

RTX 3090
936 GB/s
RTX 4090
1,010 GB/s

Cheapest on-demand

71% cheaper on RTX 3090

RTX 3090
$0.09 /GPU/hr
RTX 4090
$0.33 /GPU/hr

Price comparison

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

Billing RTX 3090 RTX 4090 Difference
On-demand $0.19 /GPU/hr from $0.09 $0.46 /GPU/hr from $0.33 58% cheaper on RTX 3090
Reserved -- /GPU/hr from $0.06 (1 mo) $0.52 /GPU/hr from $0.38 (3 mo)
Spot -- /GPU/hr from $0.07 $0.38 /GPU/hr from $0.15

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 and spot on the RTX 3090: 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

RTX 3090 vs RTX 4090 price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec RTX 3090 RTX 4090 Difference
Memory
Capacity 24 GB GDDR6X 24 GB GDDR6X Identical
Bandwidth 936 GB/s 1,010 GB/s 8% higher on RTX 4090
Bus width 384-bit 384-bit Identical
Compute · dense
FP8 Not supported 330.3 TFLOPS RTX 4090 only
FP16 / BF16 71.2 TFLOPS 165.2 TFLOPS 2.3x higher on RTX 4090
INT8 284.7 TOPS 660.6 TOPS 2.3x higher on RTX 4090
FP32 35.6 TFLOPS 82.6 TFLOPS 2.3x higher on RTX 4090
Platform
Interconnect NVLink 112 GB/s PCIe only NVLink on RTX 3090 only
Board power 350 W 450 W 29% higher on RTX 4090
Released Q3 2020 Q4 2022 2 years newer on RTX 4090
Precision
Supported formats FP16BF16TF32FP32INT4INT8 FP8FP16BF16TF32FP32INT4INT8

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

Source: RTX 3090 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.

8 providers list the RTX 3090 and 19 the RTX 4090. Every listing is on the RTX 3090 page and the RTX 4090 page.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia RTX 3090 was last updated on Sept. 14, 2026, and for Nvidia RTX 4090 on Sept. 14, 2026.