AMD MI325X
vs
Nvidia K620
The MI325X is newer, with 128x the memory and 207x the bandwidth.
At a glance
Memory
128x more on MI325X
- MI325X
- 256 GB
- K620
- 2 GB
Memory bandwidth
207x higher on MI325X
- MI325X
- 6,000 GB/s
- K620
- 29 GB/s
Cheapest on-demand
- MI325X
- $2.25 /GPU/hr
- K620
- --
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | MI325X | K620 | Difference |
|---|---|---|---|
| On-demand | $3.06 /GPU/hr from $2.25 | No on-demand listings | |
| Reserved | $1.95 /GPU/hr from $1.48 (12 mo) | No reserved listings | |
| Spot | Sold out | No spot listings |
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. Verify before provisioning. More on how we price.
Price history
MI325X vs K620 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI325X | K620 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 256 GB HBM3e | 2 GB DDR3 | 128x more on MI325X |
| Bandwidth | 6,000 GB/s | 29 GB/s | 207x higher on MI325X |
| Bus width | 8,192-bit | 128-bit | 64x wider on MI325X |
| Compute · dense | |||
| FP8 | 2,614.9 TFLOPS | Not supported | MI325X only |
| FP16 / BF16 | 1,307.4 TFLOPS | Not supported | MI325X only |
| INT8 | 2,614.9 TOPS | Not supported | MI325X only |
| FP32 | 163.4 TFLOPS | 0.9 TFLOPS | 190x higher on MI325X |
| FP64 | 81.7 TFLOPS | Not supported | MI325X only |
| Platform | |||
| Interconnect | Infinity Fabric 896 GB/s | PCIe only | Infinity Fabric on MI325X only |
| Board power | 1,000 W | 45 W | 22x higher on MI325X |
| Released | Q4 2024 | Q3 2014 | 10 years newer on MI325X |
| Precision | |||
| Supported formats | FP8FP16BF16TF32FP32FP64INT8 | FP32 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: MI325X datasheet and K620 datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.
| Provider | MI325X | K620 |
|---|---|---|
Bentaus
USA
|
$2.25 /GPU/hr On-demand | -- |
Cyfuture AI
India
|
$3.00 /GPU/hr On-demand | -- |
DigitalOcean
USA
|
$3.80 /GPU/hr On-demand | -- |
TensorWave
USA
|
$2.25 /GPU/hr Custom OAM | -- |
Vultr
USA
|
$2.00 /GPU/hr Spot | -- |
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 44% less bandwidth than the MI325X
From $1.73 /GPU/hr Compare
-
Nvidia B200
180 GB HBM3e · 28% more bandwidth than the MI325X
From $3.75 /GPU/hr Compare
-
Nvidia H200
141 GB HBM3e · 20% less bandwidth than the MI325X
From $2.09 /GPU/hr Compare
Our data for AMD MI325X was last updated on Sept. 14, 2026, and for Nvidia K620 on Sept. 14, 2026.