AMD MI300X
vs
Nvidia RTX 3090 Ti
The MI300X is newer, with 8x the memory and 5.3x the bandwidth. The RTX 3090 Ti is typically cheaper.
At a glance
Memory
8x more on MI300X
- MI300X
- 192 GB
- RTX 3090 Ti
- 24 GB
Memory bandwidth
5.3x higher on MI300X
- MI300X
- 5.30 TB/s
- RTX 3090 Ti
- 1.01 TB/s
Cheapest on-demand
93% cheaper on RTX 3090 Ti
- MI300X
- $2.59 /GPU/hr
- RTX 3090 Ti
- $0.19 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | MI300X | RTX 3090 Ti | Difference |
|---|---|---|---|
| On-demand | $4.41 /GPU/hr from $2.59 | $0.26 /GPU/hr from $0.19 | 94% cheaper on RTX 3090 Ti |
| Reserved | $3.39 /GPU/hr from $1.61 (12 mo) | -- /GPU/hr from $0.22 (6 mo) | |
| Spot | -- /GPU/hr from $1.60 | -- /GPU/hr from $0.10 |
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 reserved and spot on the RTX 3090 Ti: 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 RTX 3090 Ti price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | MI300X | RTX 3090 Ti | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 192 GB HBM3 | 24 GB GDDR6X | 8x more on MI300X |
| Bandwidth | 5,300 GB/s | 1,008 GB/s | 5.3x 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 | 80 TFLOPS | 16x higher on MI300X |
| INT8 | 2,614.9 TOPS | 320 TOPS | 8.2x higher on MI300X |
| FP32 | 163.4 TFLOPS | 40 TFLOPS | 4.1x 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 | 450 W | 67% higher on MI300X |
| Released | Q4 2023 | Q1 2022 | 2 years newer on MI300X |
| Precision | |||
| Supported formats | FP8FP16BF16TF32FP32FP64INT8 | FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: MI300X datasheet and RTX 3090 Ti 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 | MI300X | RTX 3090 Ti |
|---|---|---|
Hot Aisle
USA
|
$3.39 /GPU/hr Reserved | -- |
Denvr
Canada
|
On request Custom | -- |
DigitalOcean
USA
|
$2.59 /GPU/hr On-demand | -- |
Cyfuture AI
India
|
$2.77 /GPU/hr On-demand | -- |
Oracle Cloud
USA
|
$6.00 /GPU/hr On-demand | -- |
Azure
USA
|
$7.86 /GPU/hr On-demand | -- |
Cirrascale
USA
|
$3.12 /GPU/hr Reserved | -- |
Crusoe
USA
|
On request Reserved | -- |
Vast.ai
USA
|
-- | $0.19 /GPU/hr On-demand |
Salad
Distributed
|
-- | $0.19 /GPU/hr On-demand |
Runpod
USA
|
-- | $0.27 /GPU/hr On-demand |
11 providers list the MI300X and 3 the RTX 3090 Ti. Every listing is on the MI300X page and the RTX 3090 Ti page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 37% less bandwidth than the MI300X
From $1.30 /GPU/hr Compare
-
Nvidia A100
80 GB HBM2e · 63% less bandwidth than the MI300X
From $0.40 /GPU/hr Compare
-
AMD MI325X
256 GB HBM3e · released Q4 2024
From $2.25 /GPU/hr Compare
-
Nvidia RTX 5090
32 GB GDDR7 · 78% more bandwidth than the RTX 3090 Ti
From $0.35 /GPU/hr Compare
-
Nvidia RTX 4090
24 GB GDDR6X · released Q4 2022
From $0.30 /GPU/hr Compare
Our data for AMD MI300X was last updated on Sept. 14, 2026, and for Nvidia RTX 3090 Ti on Sept. 14, 2026.