A workstation GPU against a consumer card, one Ampere and one Ada Lovelace: 20 GB GDDR6 against 24 GB GDDR6X and 58% more memory bandwidth on the RTX 4090.
At a glance
Memory
- A4500
- 20 GB
- RTX 4090
- 24 GB
1.2x more on RTX 4090
Memory bandwidth
- A4500
- 640 GB/s
- RTX 4090
- 1,010 GB/s
1.6x higher on RTX 4090
Cheapest on-demand
- A4500
- --
- RTX 4090
- $0.30 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A4500 | RTX 4090 | Difference |
|---|---|---|---|
| On-demand | Sold out | $0.46 /GPU/hr from $0.30 | |
| Reserved | On request | $0.52 /GPU/hr from $0.30 (24 mo) | |
| Spot | No spot listings | -- /GPU/hr from $0.16 |
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 RTX 4090: 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
A4500 vs RTX 4090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A4500 | RTX 4090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 20 GB GDDR6 | 24 GB GDDR6X | 1.2x more on RTX 4090 |
| Bandwidth | 640 GB/s | 1,010 GB/s | 1.6x higher on RTX 4090 |
| Bus width | 320-bit | 384-bit | 1.2x wider on RTX 4090 |
| Compute · dense | |||
| FP8 | Not supported | 330.3 TFLOPS | RTX 4090 only |
| FP16 / BF16 | 94.6 TFLOPS | 165.2 TFLOPS | 1.7x higher on RTX 4090 |
| INT8 | 660.6 TOPS | ||
| FP32 | 23.7 TFLOPS | 82.6 TFLOPS | 3.5x higher on RTX 4090 |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 200 W | 450 W | 2.2x higher on RTX 4090 |
| Released | Q4 2021 | Q4 2022 | 11 months newer on RTX 4090 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A4500 datasheet and RTX 4090 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | A4500 /GPU/hr | RTX 4090 /GPU/hr |
|---|---|---|
Runpod
|
Reservation on request | On-Demand $0.34 |
Salad
|
-- | On-Demand $0.30 |
GPU.ai
|
-- | On-Demand $0.34 |
Vast.ai
|
-- | On-Demand $0.38 |
Packet·ai
|
-- | On-Demand $0.39 |
Lium
|
-- | On-Demand $0.58 |
BreezeHost
|
-- | On-Demand $0.35 |
GPUhub
|
-- | On-Demand $0.44 |
1 provider list the A4500 and 17 the RTX 4090. Every listing is on the A4500 page and the RTX 4090 page.
Similar GPUs
Other comparisons in the same class.
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Nvidia A10
From $1.00 /GPU/hr Compare -
Nvidia A5000
From $0.25 /GPU/hr Compare -
Nvidia RTX 5090
From $0.35 /GPU/hr Compare -
Nvidia L40S
From $0.55 /GPU/hr Compare
Our data for Nvidia A4500 was last updated on Sept. 7, 2026, and for Nvidia RTX 4090 on Sept. 7, 2026.