The MI325X is newer, with 11x the memory and 6.2x the bandwidth. The Radeon RX 7900 XTX is cheaper right now.
At a glance
Memory
11x more on MI325X
- MI325X
- 256 GB
- Radeon RX 7900 XTX
- 24 GB
Memory bandwidth
6.2x higher on MI325X
- MI325X
- 6,000 GB/s
- Radeon RX 7900 XTX
- 960 GB/s
Cheapest on-demand
93% cheaper on Radeon RX 7900 XTX
- MI325X
- $2.45 /GPU/hr
- Radeon RX 7900 XTX
- $0.17 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | MI325X | Radeon RX 7900 XTX | Difference |
|---|---|---|---|
| On-demand | $3.11 /GPU/hr from $2.45 | -- /GPU/hr from $0.17 | |
| Reserved | $2.20 /GPU/hr from $1.50 (12 mo) | No reserved listings | |
| Spot | Sold out | -- /GPU/hr from $0.07 |
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 on-demand and spot on the Radeon RX 7900 XTX: 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
MI325X vs Radeon RX 7900 XTX price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI325X | Radeon RX 7900 XTX | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 256 GB HBM3e | 24 GB GDDR6 | 11x more on MI325X |
| Bandwidth | 6,000 GB/s | 960 GB/s | 6.2x higher on MI325X |
| Bus width | 8,192-bit | 384-bit | 21x wider on MI325X |
| Compute · dense | |||
| FP8 | 2,614.9 TFLOPS | Not supported | MI325X only |
| FP16 / BF16 | 1,307.4 TFLOPS | 123 TFLOPS | 11x higher on MI325X |
| INT8 | 2,614.9 TOPS | 123 TOPS | 21x higher on MI325X |
| FP32 | 163.4 TFLOPS | 61.4 TFLOPS | 2.7x 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 | 355 W | 2.8x higher on MI325X |
| Released | Q4 2024 | Q4 2022 | 2 years newer on MI325X |
| Precision | |||
| Supported formats | FP8FP16BF16TF32FP32FP64INT8 | FP16BF16FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: MI325X datasheet and Radeon RX 7900 XTX 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 | Radeon RX 7900 XTX |
|---|---|---|
|
|
$2.45 /GPU/hr On-demand | -- |
|
|
$3.06 /GPU/hr On-demand | -- |
|
|
$3.80 /GPU/hr On-demand | -- |
|
|
$2.25 /GPU/hr Custom OAM | -- |
|
|
$2.25 /GPU/hr On-demand | -- |
|
|
$2.00 /GPU/hr Spot | -- |
|
|
-- | $0.17 /GPU/hr On-demand |
Similar GPUs
Other comparisons in the same class.
Our data for AMD MI325X was last updated on Sept. 14, 2026, and for AMD Radeon RX 7900 XTX on Nov. 13, 2026.