AMD MI355X
vs
Nvidia H800
The MI355X is newer, with 3.6x the memory and 4x the bandwidth.
At a glance
Memory
3.6x more on MI355X
- MI355X
- 288 GB
- H800
- 80 GB
Memory bandwidth
4x higher on MI355X
- MI355X
- 8.00 TB/s
- H800
- 2.00 TB/s
Cheapest on-demand
- MI355X
- $5.99 /GPU/hr
- H800
- --
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | MI355X | H800 | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $5.99 | No on-demand listings | |
| Spot | -- /GPU/hr from $2.97 | 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. No median for 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
MI355X vs H800 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI355X | H800 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 80 GB HBM2e | 3.6x more on MI355X |
| Bandwidth | 8,000 GB/s | 2,000 GB/s | 4x higher on MI355X |
| Bus width | 8,192-bit | 5,120-bit | 60% wider on MI355X |
| Compute · dense | |||
| FP4 | 10,066.3 TFLOPS | Not supported | MI355X only |
| FP8 | 5,033.2 TFLOPS | 1,513 TFLOPS | 3.3x higher on MI355X |
| FP16 / BF16 | 2,516.6 TFLOPS | 756.5 TFLOPS | 3.3x higher on MI355X |
| INT8 | 5,033.2 TOPS | 1,513 TOPS | 3.3x higher on MI355X |
| FP32 | 157.3 TFLOPS | 51 TFLOPS | 3.1x higher on MI355X |
| FP64 | 78.6 TFLOPS | ||
| Platform | |||
| Interconnect | Infinity Fabric 1,075 GB/s | NVLink 400 GB/s | 2.7x higher on MI355X |
| Board power | 1,400 W | 350 W | 4x higher on MI355X |
| Released | Q2 2025 | Q1 2023 | 2 years newer on MI355X |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16FP32FP64INT8 | FP8FP16BF16TF32FP32FP64INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: 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 | MI355X | H800 |
|---|---|---|
Daytona
USA
|
$5.99 /GPU/hr On-demand | -- |
Oracle Cloud
USA
|
$8.60 /GPU/hr On-demand | -- |
DigitalOcean
USA
|
$2.97 /GPU/hr Spot | -- |
TensorWave
USA
|
$2.95 /GPU/hr Custom OAM | -- |
Crusoe
USA
|
On request Custom | -- |
Vultr
USA
|
$2.59 /GPU/hr Spot | -- |
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 58% less bandwidth than the MI355X
From $1.30 /GPU/hr Compare
-
Nvidia B200
180 GB HBM3e · released Q1 2024
From $3.75 /GPU/hr Compare
-
AMD MI325X
256 GB HBM3e · 25% less bandwidth than the MI355X
From $2.25 /GPU/hr Compare
-
Nvidia H200
141 GB HBM3e · 2.4x the bandwidth of the H800
From $2.09 /GPU/hr Compare
Our data for AMD MI355X was last updated on Sept. 14, 2026, and for Nvidia H800 on Sept. 14, 2026.