The RTX 3080 is newer, with 5x the memory and 26x the bandwidth.

At a glance

Memory

5x more on RTX 3080

K620
2 GB
RTX 3080
10 GB

Memory bandwidth

26x higher on RTX 3080

K620
29 GB/s
RTX 3080
760 GB/s

Cheapest on-demand

K620
--
RTX 3080
$0.11 /GPU/hr

Price comparison

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

Billing K620 RTX 3080 Difference
On-demand No on-demand listings $0.15 /GPU/hr from $0.11
Reserved No reserved listings -- /GPU/hr from $0.12 (3 mo)
Spot No spot listings -- /GPU/hr from $0.06

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

K620 vs RTX 3080 price history

Weekly median on-demand price per GPU per hour

Last 17 months
Aggregating historical prices...

Specs comparison

Spec K620 RTX 3080 Difference
Memory
Capacity 2 GB DDR3 10 GB GDDR6X 5x more on RTX 3080
Bandwidth 29 GB/s 760 GB/s 26x higher on RTX 3080
Bus width 128-bit 320-bit 2.5x wider on RTX 3080
Compute · dense
FP16 / BF16 Not supported 59.5 TFLOPS RTX 3080 only
INT8 Not supported 238 TOPS RTX 3080 only
FP32 0.9 TFLOPS 29.8 TFLOPS 35x higher on RTX 3080
Platform
Interconnect PCIe only PCIe only
Board power 45 W 320 W 7.1x higher on RTX 3080
Released Q3 2014 Q3 2020 6 years newer on RTX 3080
Precision
Supported formats FP32 FP16BF16TF32FP32INT4INT8

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: K620 datasheet and RTX 3080 datasheet.

Where to rent them

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

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia K620 was last updated on Sept. 14, 2026, and for Nvidia RTX 3080 on Sept. 14, 2026.