A workstation GPU against a consumer card, one Maxwell and one Ada Lovelace: 2 GB DDR3 against 24 GB GDDR6X and 35x the memory bandwidth on the RTX 4090.
At a glance
Memory
- K620
- 2 GB
- RTX 4090
- 24 GB
12x more on RTX 4090
Memory bandwidth
- K620
- 29 GB/s
- RTX 4090
- 1,010 GB/s
35x higher on RTX 4090
Cheapest on-demand
- K620
- --
- RTX 4090
- $0.23 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | K620 | RTX 4090 | Difference |
|---|---|---|---|
| On-demand | No on-demand listings | $0.40 /GPU/hr from $0.23 | |
| Reserved | No reserved listings | $0.46 /GPU/hr from $0.27 (12 mo) | |
| Spot | No spot listings | -- /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 spot on the RTX 4090: 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 4090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | K620 | RTX 4090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 2 GB DDR3 | 24 GB GDDR6X | 12x more on RTX 4090 |
| Bandwidth | 29 GB/s | 1,010 GB/s | 35x higher on RTX 4090 |
| Bus width | 128-bit | 384-bit | 3x wider on RTX 4090 |
| Compute · dense | |||
| FP8 | Not supported | 330.3 TFLOPS | RTX 4090 only |
| FP16 / BF16 | Not supported | 165.2 TFLOPS | RTX 4090 only |
| INT8 | Not supported | 660.6 TOPS | RTX 4090 only |
| FP32 | 0.9 TFLOPS | 82.6 TFLOPS | 96x higher on RTX 4090 |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 45 W | 450 W | 10x higher on RTX 4090 |
| Released | Q3 2014 | Q4 2022 | 8 years newer on RTX 4090 |
| Precision | |||
| Supported formats | FP32 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: K620 datasheet and RTX 4090 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | K620 /GPU/hr | RTX 4090 /GPU/hr |
|---|---|---|
Theta EdgeCloud
|
-- | On-Demand $0.23 |
Salad
|
-- | On-Demand $0.30 |
Novita
|
-- | On-Demand $0.33 |
GPU.ai
|
-- | On-Demand $0.34 |
Runpod
|
-- | On-Demand $0.34 |
Packet·ai
|
-- | On-Demand $0.39 |
Vast.ai
|
-- | On-Demand $0.40 |
Lium
|
-- | On-Demand $0.58 |
0 providers list the K620 and 17 the RTX 4090. Every listing is on the K620 page and the RTX 4090 page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia K620 was last updated on Sept. 7, 2026, and for Nvidia RTX 4090 on Sept. 7, 2026.