Overview

Nvidia logo Nvidia K620

The Nvidia K620 is a workstation GPU on the Maxwell architecture, released Q3 2014, with 2 GB DDR3 and 29 GB/s memory bandwidth.

Budget Workstation

Nvidia logo Nvidia RTX 4080

The Nvidia RTX 4080 is a consumer GPU on the Ada Lovelace architecture, released Q4 2022, with 16 GB GDDR6X and 717 GB/s memory bandwidth.

Mid-Range Consumer

Memory per GPU

8x more on RTX 4080
Nvidia logo K620
2 GB DDR3
Nvidia logo RTX 4080
16 GB GDDR6X

Memory bandwidth

25x higher on RTX 4080
Nvidia logo K620
29 GB/s
Nvidia logo RTX 4080
717 GB/s

GPU interconnect

Nvidia logo K620
PCIe only
Nvidia logo RTX 4080
PCIe only

Peak performance (FP32)

57x higher on RTX 4080
Nvidia logo K620
0.9 TFLOPS
Nvidia logo RTX 4080
48.7 TFLOPS

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

FP32 per watt

8x higher on RTX 4080
Nvidia logo K620
0.02 TFLOPS/W
Nvidia logo RTX 4080
0.15 TFLOPS/W

Board power

7.1x higher on RTX 4080
Nvidia logo K620
45 W
Nvidia logo RTX 4080
320 W

Precision support

Nvidia logo K620
FP32
Nvidia logo RTX 4080
FP8 FP16 BF16 TF32 FP32 INT4 INT8

Highlighted formats are supported by only one of the two.

Architecture

Nvidia logo K620
Maxwell
Nvidia logo RTX 4080
Ada Lovelace

Released

8 years newer on RTX 4080
Nvidia logo K620
Q3 2014
Nvidia logo RTX 4080
Q4 2022

Price comparison

Cheapest on-demand

Nvidia logo K620
--
Nvidia logo RTX 4080
$0.13 / GPU / hr

Typical rate

Nvidia logo K620
--
Nvidia logo RTX 4080
$0.25 / GPU / hr

Median across providers, one vote each, so a large catalog does not outweigh a small one.

Spot floor

Nvidia logo K620
No spot listings
Nvidia logo RTX 4080
$0.11 / GPU / hr

Providers listing it

Nvidia logo K620
None
Nvidia logo RTX 4080
7

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. Verify before provisioning. More on how we price.

Offers and availability

How this list works

Order

Each provider appears once per GPU. We pick the one configuration that speaks for that provider, and rank on it in this order:

  1. Availability: in stock, then waitlist, then not reported, then out of stock. A price you can act on outranks a cheaper one you cannot.
  2. Billing type: on-demand first, then reserved, then spot, then quote-only. On-demand leads because it is the only rate you can hold without committing to anything.
  3. Price: the lowest per-GPU hourly rate the provider lists, converted to USD.

The configuration we pick is chosen the same way, availability before billing before price. The rest of that provider's configurations are on the GPU's own page.

Ties sort alphabetically. Reserved rates are not separated by term length, so a three-year commitment can sit above a one-month one: the label beneath each price says which you are looking at. Providers who publish no rate are listed last within their group.

Transparency and funding

  • Ads and sponsors: Paid placements sit at the top of the list and are always labeled as sponsored content. Sponsorship never influences the organic ranking itself.
  • Affiliates: Affiliate links are marked. We may earn a commission if you click them, but commissions never affect the order.
  • Prices: Shown in USD, converted at daily reference rates where a provider publishes in another currency. A month means 720 hours. How we estimate costs.

Similar GPUs

Other comparisons in the same class:

View all GPUs

Our data for Nvidia K620 was last updated on Sept. 7, 2026, and for Nvidia RTX 4080 on Sept. 7, 2026.