The MI355X is newer, with 2.2x the memory and 2.5x the bandwidth.
At a glance
Memory
2.2x more on MI355X
- MI250
- 128 GB
- MI355X
- 288 GB
Memory bandwidth
2.5x higher on MI355X
- MI250
- 3.20 TB/s
- MI355X
- 8.00 TB/s
Cheapest on-demand
- MI250
- --
- MI355X
- $5.99 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | MI250 | MI355X | Difference |
|---|---|---|---|
| On-demand | No on-demand listings | $8.04 /GPU/hr from $5.99 | |
| Reserved | No reserved listings | -- /GPU/hr from $4.29 | |
| Spot | No spot listings | -- /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 reserved 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
MI250 vs MI355X price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI250 | MI355X | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 128 GB HBM2e | 288 GB HBM3e | 2.2x more on MI355X |
| Bandwidth | 3,200 GB/s | 8,000 GB/s | 2.5x higher on MI355X |
| Bus width | 8,192-bit | 8,192-bit | Identical |
| Compute · dense | |||
| FP4 | Not supported | 10,066.3 TFLOPS | MI355X only |
| FP8 | Not supported | 5,033.2 TFLOPS | MI355X only |
| FP16 / BF16 | 362.1 TFLOPS | 2,516.6 TFLOPS | 7x higher on MI355X |
| INT8 | 362.1 TOPS | 5,033.2 TOPS | 14x higher on MI355X |
| FP32 | 90.5 TFLOPS | 157.3 TFLOPS | 74% higher on MI355X |
| FP64 | 45.3 TFLOPS | 78.6 TFLOPS | 74% higher on MI355X |
| Platform | |||
| Interconnect | Infinity Fabric 400 GB/s | Infinity Fabric 1,075 GB/s | 2.7x higher on MI355X |
| Board power | 500 W | 1,400 W | 2.8x higher on MI355X |
| Released | Q4 2021 | Q2 2025 | 4 years newer on MI355X |
| Precision | |||
| Supported formats | FP16BF16FP32FP64INT4INT8 | FP4FP6FP8FP16BF16FP32FP64INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: MI250 datasheet and MI355X 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 | MI250 | MI355X |
|---|---|---|
|
|
-- | $5.99 /GPU/hr On-demand |
|
|
-- | $6.30 /GPU/hr On-demand |
|
|
-- | $8.60 /GPU/hr On-demand |
|
|
-- | $4.29 /GPU/hr Reserved |
|
|
-- | $6.13 /GPU/hr Reserved |
|
|
-- | $4.50 /GPU/hr Spot |
|
|
-- | $2.95 /GPU/hr Custom OAM |
|
|
-- | On request Custom |
0 providers list the MI250 and 9 the MI355X. Every listing is on the MI250 page and the MI355X page.
Similar GPUs
Other comparisons in the same class.
Our data for AMD MI250 was last updated on Sept. 14, 2026, and for AMD MI355X on Sept. 14, 2026.