The MI355X is newer, with 50% more memory and 51% more bandwidth. The MI300X is cheaper right now.
At a glance
Memory
50% more on MI355X
- MI300X
- 192 GB
- MI355X
- 288 GB
Memory bandwidth
51% higher on MI355X
- MI300X
- 5.30 TB/s
- MI355X
- 8.00 TB/s
Cheapest on-demand
57% cheaper on MI300X
- MI300X
- $2.59 /GPU/hr
- MI355X
- $5.99 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | MI300X | MI355X | Difference |
|---|---|---|---|
| On-demand | $4.43 /GPU/hr from $2.59 | -- /GPU/hr from $5.99 | |
| Reserved | $2.81 /GPU/hr from $1.63 (12 mo) | No reserved listings | |
| Spot | -- /GPU/hr from $1.76 | -- /GPU/hr from $3.44 |
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 MI300X and on-demand and spot on the MI355X: 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
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 | 50% more on MI355X |
| Bandwidth | 5,300 GB/s | 8,000 GB/s | 51% 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 | 92% higher on MI355X |
| FP16 / BF16 | 1,307.4 TFLOPS | 2,516.6 TFLOPS | 92% higher on MI355X |
| INT8 | 2,614.9 TOPS | 5,033.2 TOPS | 92% 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 | 20% higher on MI355X |
| Board power | 750 W | 1,400 W | 87% 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 that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.
| Provider | MI300X | MI355X |
|---|---|---|
DigitalOcean
USA
|
$2.59 /GPU/hr On-demand | $5.50 /GPU/hr Spot |
Oracle Cloud
USA
|
$6.00 /GPU/hr On-demand | $8.60 /GPU/hr On-demand |
Crusoe
USA
|
On request Reserved | On request Custom |
Denvr
Canada
|
On request Custom | -- |
Cyfuture AI
India
|
$2.81 /GPU/hr On-demand | -- |
Azure
USA
|
$7.86 /GPU/hr On-demand | -- |
Cirrascale
USA
|
$3.12 /GPU/hr Reserved | -- |
Runpod
USA
|
On request Reserved | -- |
Daytona
USA
|
-- | $5.99 /GPU/hr On-demand |
TensorWave
USA
|
-- | $2.95 /GPU/hr Custom OAM |
Vultr
USA
|
-- | $2.59 /GPU/hr Spot |
11 providers list the MI300X and 6 the MI355X. Every listing is on the MI300X page and the MI355X page.
Similar GPUs
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Our data for AMD MI300X was last updated on Sept. 14, 2026, and for AMD MI355X on Sept. 14, 2026.