AMD MI300X
vs
Nvidia A40
Two data center GPUs, one CDNA 3 and one Ampere: 192 GB HBM3 against 48 GB GDDR6, 7.6x the memory bandwidth on the MI300X, and Infinity Fabric 896 GB/s on the MI300X where the A40 is PCIe only.
At a glance
Updated 8 minutes ago- Memory
- 192 GB
- HBM3
- Memory bandwidth
- 5.30 TB/s
- From
- $2.39 /GPU/hr
- 10 providers
- Memory
- 48 GB
- GDDR6
- Memory bandwidth
- 696 GB/s
- From
- $0.49 /GPU/hr
- 6 providers
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | MI300X | A40 | Difference |
|---|---|---|---|
| On-demand | $2.39 | $0.49 | 4.9x more expensive on MI300X |
| Spot | $1.60 | No spot listings | |
| Reserved | $1.61 | $0.61 | 2.6x more expensive on MI300X |
| Median | $2.91 | $0.77 | 3.8x more expensive on MI300X |
Median: Median across providers, one vote each, so a large catalog does not outweigh a small one.
Price history
MI300X vs A40 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI300X | A40 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 192 GB HBM3 | 48 GB GDDR6 | 4x more on MI300X |
| Bandwidth | 5,300 GB/s | 696 GB/s | 7.6x higher on MI300X |
| Bus width | 8,192-bit | 384-bit | 21x wider on MI300X |
| Compute · dense | |||
| FP8 | 2,614.9 TFLOPS | Not supported | MI300X only |
| FP16 / BF16 | 1,307.4 TFLOPS | 149.7 TFLOPS | 8.7x higher on MI300X |
| INT8 | 2,614.9 TOPS | 299.3 TOPS | 8.7x higher on MI300X |
| FP32 | 163.4 TFLOPS | 37.4 TFLOPS | 4.4x higher on MI300X |
| FP64 | 81.7 TFLOPS | Not supported | MI300X only |
| Platform | |||
| Interconnect | Infinity Fabric 896 GB/s | PCIe only | Infinity Fabric on MI300X only |
| Board power | 750 W | 300 W | 2.5x higher on MI300X |
| Released | Q4 2023 | Q4 2020 | 3 years newer on MI300X |
| Precision | |||
| Supported formats | FP8FP16BF16TF32FP32FP64INT8 | FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: MI300X datasheet and A40 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | MI300X /GPU/hr | A40 /GPU/hr |
|---|---|---|
Runpod
|
On-Demand $2.39 | On-Demand $0.49 |
DigitalOcean
|
On-Demand $2.59 | -- |
Cyfuture AI
|
On-Demand $2.78 | -- |
Hot Aisle
|
On-Demand $2.99 | -- |
Oracle Cloud
|
On-Demand $6.00 | -- |
Azure
|
On-Demand $7.86 | -- |
Cirrascale
|
Reserved (12mo) $3.12 | -- |
Crusoe
|
Reservation on request | -- |
Exoscale
|
-- | On-Demand $1.05 |
Database Mart
|
-- | Reserved (24mo) $0.61 |
Utho
|
-- | Reserved (36mo) $0.65 |
Sesterce
|
-- | On-Demand $1.21 |
EmpirioLabs AI
|
-- | On-Demand $1.49 |
10 providers list the MI300X and 6 the A40. Every listing is on the MI300X page and the A40 page.
Similar GPUs
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Our data for AMD MI300X was last updated on Sept. 7, 2026, and for Nvidia A40 on Sept. 7, 2026.