Overview
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.
Nvidia RTX 4070
The Nvidia RTX 4070 is a consumer GPU on the Ada Lovelace architecture, released Q2 2023, with 12 GB GDDR6X and 504 GB/s memory bandwidth.
Memory per GPU
6x more on RTX 4070
K620
RTX 4070
Memory bandwidth
17x higher on RTX 4070
K620
RTX 4070
GPU interconnect
K620
RTX 4070
Peak performance (FP32)
34x higher on RTX 4070
K620
RTX 4070
Vendor peak figures, dense and per GPU. Not measured throughput.
FP32 per watt
7.6x higher on RTX 4070
K620
RTX 4070
Board power
4.4x higher on RTX 4070
K620
RTX 4070
Precision support
K620
RTX 4070
Highlighted formats are supported by only one of the two.
Architecture
K620
RTX 4070
Released
9 years newer on RTX 4070
K620
RTX 4070
Source: K620 datasheet and RTX 4070 datasheet.
Price comparison
Cheapest on-demand
K620
RTX 4070
Typical rate
K620
RTX 4070
Median across providers, one vote each, so a large catalog does not outweigh a small one.
Spot floor
K620
RTX 4070
Providers listing it
K620
RTX 4070
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:
- Availability: in stock, then waitlist, then not reported, then out of stock. A price you can act on outranks a cheaper one you cannot.
- 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.
- 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.
K620 Offers
No provider publishes a stock status.
No active offerings found
RTX 4070 Offers
3 of 3 providers report available stock.
Similar GPUs
Other comparisons in the same class:
Our data for Nvidia K620 was last updated on Sept. 7, 2026, and for Nvidia RTX 4070 on Sept. 7, 2026.