The RTX 4090 is newer, with 2.4x the memory and 33% more bandwidth. The RTX 3080 is typically cheaper.

At a glance

Memory

2.4x more on RTX 4090

RTX 3080
10 GB
RTX 4090
24 GB

Memory bandwidth

33% higher on RTX 4090

RTX 3080
760 GB/s
RTX 4090
1,010 GB/s

Cheapest on-demand

61% cheaper on RTX 3080

RTX 3080
$0.13 /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 3080 RTX 4090 Difference
On-demand $0.16 /GPU/hr from $0.13 $0.47 /GPU/hr from $0.33 67% cheaper on RTX 3080
Reserved -- /GPU/hr from $0.13 (3 mo) $0.52 /GPU/hr from $0.34 (1 mo)
Spot -- /GPU/hr from $0.06 $0.34 /GPU/hr from $0.16

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 3080: 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 3080 vs RTX 4090 price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec RTX 3080 RTX 4090 Difference
Memory
Capacity 10 GB GDDR6X 24 GB GDDR6X 2.4x more on RTX 4090
Bandwidth 760 GB/s 1,010 GB/s 33% higher on RTX 4090
Bus width 320-bit 384-bit 20% wider on RTX 4090
Compute · dense
FP8 Not supported 330.3 TFLOPS RTX 4090 only
FP16 / BF16 59.5 TFLOPS 165.2 TFLOPS 2.8x higher on RTX 4090
INT8 238 TOPS 660.6 TOPS 2.8x higher on RTX 4090
FP32 29.8 TFLOPS 82.6 TFLOPS 2.8x higher on RTX 4090
Platform
Interconnect PCIe only PCIe only
Board power 320 W 450 W 41% higher on RTX 4090
Released Q3 2020 Q4 2022 2 years newer on RTX 4090
Precision
Supported formats FP16BF16TF32FP32INT4INT8 FP8FP16BF16TF32FP32INT4INT8

Figures are for each model's headline configuration. Where a form factor carries a different number, it is named under the figure.

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

Source: RTX 3080 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.

5 providers list the RTX 3080 and 20 the RTX 4090. Every listing is on the RTX 3080 page and the RTX 4090 page.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia RTX 3080 was last updated on Sept. 14, 2026, and for Nvidia RTX 4090 on Sept. 14, 2026.