A workstation GPU against a consumer card, one Maxwell and one Ampere: 2 GB DDR3 against 24 GB GDDR6X, 32x the memory bandwidth on the RTX 3090, and NVLink 112 GB/s on the RTX 3090 where the K620 is PCIe only.
At a glance
Updated 8 minutes ago- Memory
- 2 GB
- DDR3
- Memory bandwidth
- 29 GB/s
- From
- --
- Memory
- 24 GB
- GDDR6X
- Memory bandwidth
- 936 GB/s
- From
- $0.10 /GPU/hr
- 8 providers
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | K620 | RTX 3090 | Difference |
|---|---|---|---|
| On-demand | -- | $0.10 | |
| Spot | No spot listings | $0.09 | |
| Reserved | No reserved listings | $0.06 | |
| Median | -- | $0.31 |
Median: Median across providers, one vote each, so a large catalog does not outweigh a small one.
Price history
K620 vs RTX 3090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | K620 | RTX 3090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 2 GB DDR3 | 24 GB GDDR6X | 12x more on RTX 3090 |
| Bandwidth | 29 GB/s | 936 GB/s | 32x higher on RTX 3090 |
| Bus width | 128-bit | 384-bit | 3x wider on RTX 3090 |
| Compute · dense | |||
| FP16 / BF16 | Not supported | 71.2 TFLOPS | RTX 3090 only |
| INT8 | Not supported | 284.7 TOPS | RTX 3090 only |
| FP32 | 0.9 TFLOPS | 35.6 TFLOPS | 41x higher on RTX 3090 |
| Platform | |||
| Interconnect | PCIe only | NVLink 112 GB/s | NVLink on RTX 3090 only |
| Board power | 45 W | 350 W | 7.8x higher on RTX 3090 |
| Released | Q3 2014 | Q3 2020 | 6 years newer on RTX 3090 |
| Precision | |||
| Supported formats | FP32 | FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: K620 datasheet and RTX 3090 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 3090 /GPU/hr |
|---|---|---|
HyperAI
|
-- | On-Demand $0.10 |
Theta EdgeCloud
|
-- | On-Demand $0.13 |
Salad
|
-- | On-Demand $0.25 |
SwissGPU
|
-- | On-Demand $0.31 |
TensorDock
|
-- | On-Demand $0.31 |
Runpod
|
-- | Reservation on request |
GPU.ai
|
-- | On-Demand $0.22 |
EmpirioLabs AI
|
-- | On-Demand $0.40 |
Similar GPUs
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Our data for Nvidia K620 was last updated on Sept. 7, 2026, and for Nvidia RTX 3090 on Sept. 7, 2026.