AMD MI355X
vs
Nvidia L40S
The MI355X is newer, with 6x the memory and 9.3x the bandwidth. The L40S is cheaper right now.
At a glance
Memory
6x more on MI355X
- MI355X
- 288 GB
- L40S
- 48 GB
Memory bandwidth
9.3x higher on MI355X
- MI355X
- 8,000 GB/s
- L40S
- 864 GB/s
Cheapest on-demand
91% cheaper on L40S
- MI355X
- $5.99 /GPU/hr
- L40S
- $0.55 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | MI355X | L40S | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $5.99 | $1.60 /GPU/hr from $0.55 | |
| Reserved | No reserved listings | $1.10 /GPU/hr from $0.61 (12 mo) | |
| Spot | -- /GPU/hr from $3.44 | $0.99 /GPU/hr from $0.74 |
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 L40S price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI355X | L40S | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 288 GB HBM3e | 48 GB GDDR6 | 6x more on MI355X |
| Bandwidth | 8,000 GB/s | 864 GB/s | 9.3x higher on MI355X |
| Bus width | 8,192-bit | 384-bit | 21x wider on MI355X |
| Compute · dense | |||
| FP4 | 10,066.3 TFLOPS | Not supported | MI355X only |
| FP8 | 5,033.2 TFLOPS | 733 TFLOPS | 6.9x higher on MI355X |
| FP16 / BF16 | 2,516.6 TFLOPS | 362.1 TFLOPS | 7x higher on MI355X |
| INT8 | 5,033.2 TOPS | 733 TOPS | 6.9x higher on MI355X |
| FP32 | 157.3 TFLOPS | 91.6 TFLOPS | 72% higher on MI355X |
| FP64 | 78.6 TFLOPS | Not supported | MI355X only |
| Platform | |||
| Interconnect | Infinity Fabric 1,075 GB/s | PCIe only | Infinity Fabric on MI355X only |
| Board power | 1,400 W | 350 W | 4x higher on MI355X |
| Released | Q2 2025 | Q3 2023 | 2 years newer on MI355X |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16FP32FP64INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: MI355X datasheet and L40S 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 | L40S |
|---|---|---|
|
|
$5.99 /GPU/hr On-demand | -- |
|
|
$8.60 /GPU/hr On-demand | -- |
|
|
$5.50 /GPU/hr Spot | -- |
|
|
$2.95 /GPU/hr Custom OAM | -- |
|
|
On request Custom | -- |
|
|
$2.59 /GPU/hr Spot | -- |
|
|
-- | $0.55 /GPU/hr On-demand |
|
|
-- | $0.79 /GPU/hr On-demand |
|
|
-- | $0.79 /GPU/hr On-demand |
|
|
-- | $0.92 /GPU/hr On-demand |
|
|
-- | $0.97 /GPU/hr On-demand |
|
|
-- | $0.97 /GPU/hr On-demand |
|
|
-- | $1.14 /GPU/hr On-demand PCIe |
|
|
-- | $1.19 /GPU/hr On-demand |
6 providers list the MI355X and 37 the L40S. Every listing is on the MI355X page and the L40S page.
Similar GPUs
Other comparisons in the same class.
Our data for AMD MI355X was last updated on Sept. 14, 2026, and for Nvidia L40S on Sept. 14, 2026.