Two AMD data center GPUs, one CDNA 3 and one CDNA 4: 192 GB HBM3 against 288 GB HBM3e and 51% more memory bandwidth on the MI355X.
At a glance
Updated 7 minutes ago- Memory
- 192 GB
- HBM3
- Memory bandwidth
- 5.30 TB/s
- From
- $2.39 /GPU/hr
- 10 providers
- Memory
- 288 GB
- HBM3e
- Memory bandwidth
- 8.00 TB/s
- From
- $8.60 /GPU/hr
- 4 providers
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | MI300X | MI355X | Difference |
|---|---|---|---|
| On-demand | $2.39 | $8.60 | 3.6x more expensive on MI355X |
| Spot | $1.60 | $4.50 | 2.8x more expensive on MI355X |
| Reserved | $1.61 | No reserved listings | |
| Median | $2.91 | $8.60 | 3x more expensive on MI355X |
Median: Median across providers, one vote each, so a large catalog does not outweigh a small one.
Price history
MI300X vs MI355X price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI300X | MI355X | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 192 GB HBM3 | 288 GB HBM3e | 1.5x more on MI355X |
| Bandwidth | 5,300 GB/s | 8,000 GB/s | 1.5x higher on MI355X |
| Bus width | 8,192-bit | 8,192-bit | Identical |
| Compute · dense | |||
| FP4 | Not supported | 10,066.3 TFLOPS | MI355X only |
| FP8 | 2,614.9 TFLOPS | 5,033.2 TFLOPS | 1.9x higher on MI355X |
| FP16 / BF16 | 1,307.4 TFLOPS | 2,516.6 TFLOPS | 1.9x higher on MI355X |
| INT8 | 2,614.9 TOPS | 5,033.2 TOPS | 1.9x higher on MI355X |
| FP32 | 163.4 TFLOPS | 157.3 TFLOPS | Within 5% |
| FP64 | 81.7 TFLOPS | 78.6 TFLOPS | Within 5% |
| Platform | |||
| Interconnect | Infinity Fabric 896 GB/s | Infinity Fabric 1,075 GB/s | 1.2x higher on MI355X |
| Board power | 750 W | 1,400 W | 1.9x higher on MI355X |
| Released | Q4 2023 | Q2 2025 | 2 years newer on MI355X |
| Precision | |||
| Supported formats | FP8FP16BF16TF32FP32FP64INT8 | FP4FP6FP8FP16BF16FP32FP64INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: MI300X datasheet and MI355X datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | MI300X /GPU/hr | MI355X /GPU/hr |
|---|---|---|
Oracle Cloud
|
On-Demand $6.00 | On-Demand $8.60 |
DigitalOcean
|
On-Demand $2.59 | Spot $4.50 |
Runpod
|
On-Demand $2.39 | -- |
Cyfuture AI
|
On-Demand $2.78 | -- |
Hot Aisle
|
On-Demand $2.99 | -- |
Azure
|
On-Demand $7.86 | -- |
Cirrascale
|
Reserved (12mo) $3.12 | -- |
Crusoe
|
Reservation on request | -- |
TensorWave
|
-- | Custom $2.95 |
Vultr
|
-- | Spot $2.59 |
10 providers list the MI300X and 4 the MI355X. Every listing is on the MI300X page and the MI355X page.
Similar GPUs
Other comparisons in the same class.
Our data for AMD MI300X was last updated on Sept. 7, 2026, and for AMD MI355X on Sept. 7, 2026.