Specifications Compared
| Spec | MI300X | RTX A4500 |
|---|---|---|
| TDP | 750W | 140W |
| VRAM | 192 GB | 20 GB |
| CUDA Cores | Not published | 6,144 |
| FP8 (dense) | 2,614.9 TFLOPS | Not published |
| Memory Type | HBM3 | GDDR6 |
| Architecture | CDNA 3 | Ampere |
| FP16 (dense) | 1,307.4 TFLOPS | Not published |
| Form Factors | OAM | PCIe |
| INT8 (dense) | 2,614.9 TOPS | Not published |
| Interconnect | Infinity Fabric, PCIe 5.0 | PCIe 4.0 |
| Tensor Cores | Not published | 192 |
| FP32 Performance | 163.4 TFLOPS | 19.2 TFLOPS |
| FP64 Performance | 81.7 TFLOPS | Not published |
| Memory Bandwidth | 5,300 GB/s | 448 GB/s |
| FP8 (with sparsity) | 5,229.8 TFLOPS | Not published |
| FP16 (with sparsity) | 2,614.9 TFLOPS | 153.4 TFLOPS |
| INT8 (with sparsity) | 5,229.8 TOPS | Not published |
Performance Analysis
The MI300X provides FP16 dense throughput of 1307.4 TFLOPS and FP32 throughput of 163.4 TFLOPS while the RTX A4500 provides FP16 with sparsity at 153.4 TFLOPS and FP32 at 19.2 TFLOPS. Memory bandwidth reaches 5300 GB/s for the MI300X against 448 GB/s for the RTX A4500. The FP16 dense figure on the MI300X exceeds the sparse figure on the RTX A4500 by a factor of eight and supports larger batch sizes during training and inference. Bandwidth differences allow the MI300X to sustain higher data movement rates that reduce stalls in memory bound operations.
Current On-Demand Offers
Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.
MI300X
MI300X is not offered on-demand by any provider we track right now. See the MI300X rental page for last-seen listed prices and a price alert.
RTX A4500
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Hyperstack | NORWAY-1 | 1 | $0.15 | — | Deploy |
| Paperspace | ny2 | 2 | $0.76 | $1.52 | Deploy |
2 providers in stock, 7 offers (cheapest per provider shown). All RTX A4500 offers, price history and alerts
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When to Choose the MI300X
The MI300X variant suits scenarios that require 192 GB HBM3 capacity and 5300 GB/s bandwidth for large model training. Its OAM form factor and Infinity Fabric interconnect fit systems designed for dense compute clusters with 750W TDP tolerance.
When to Choose the RTX A4500
The RTX A4500 variant fits environments limited to 140W TDP and PCIe form factor with 20 GB GDDR6. Its PCIe 4.0 interconnect matches standard workstation builds that prioritize lower power draw over peak tensor throughput.
Use Cases
The MI300X supplies 192 GB HBM3 and 1307.4 TFLOPS FP16 dense that accommodate models too large for 20 GB GDDR6.
The MI300X delivers 2614.9 TFLOPS FP8 dense along with 5300 GB/s bandwidth for high throughput serving.
The MI300X 192 GB capacity supports fine tuning runs that exceed the 20 GB limit of the RTX A4500.
The RTX A4500 operates at 140W TDP within standard PCIe workstations where 20 GB suffices for typical image generation.
The MI300X FP32 rating of 163.4 TFLOPS and 5300 GB/s bandwidth accelerate simulation workloads beyond the 19.2 TFLOPS of the RTX A4500.
Frequently Asked Questions
How does FP16 performance compare between these GPUs?▾
The MI300X lists FP16 dense at 1307.4 TFLOPS while the RTX A4500 lists FP16 with sparsity at 153.4 TFLOPS. Direct comparison uses the dense figure on the MI300X against the sparse figure on the RTX A4500.
What TDP values apply to each variant?▾
The MI300X variant carries a 750W TDP. The RTX A4500 variant carries a 140W TDP.
Which interconnect does the MI300X variant use?▾
The MI300X variant uses Infinity Fabric and PCIe 5.0. The RTX A4500 variant uses PCIe 4.0.
Which is cheaper to rent, the MI300X or the RTX A4500?▾
Cloud rental prices for both the MI300X and RTX A4500 vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.
How much VRAM does the MI300X have compared to the RTX A4500?▾
The MI300X has 192 GB of HBM3 memory. The RTX A4500 has 20 GB of GDDR6 memory.
Can I find MI300X and RTX A4500 GPUs available to rent right now?▾
Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.
What is the main difference between the MI300X and the RTX A4500?▾
The MI300X uses the CDNA 3 architecture (2023) while the RTX A4500 uses Ampere (2021). The MI300X has 192 GB of HBM3 at 5,300 GB/s; the RTX A4500 has 20 GB of GDDR6 at 448 GB/s, so the MI300X has 11.8x the memory bandwidth of the RTX A4500.
Rent these GPUs
Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.
Related comparisons
How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the MI300X and the RTX A4500. Dense and sparse throughput are listed separately.
- Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
- The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
- Read how we collect the data, or report an error on this page.
Next steps
- Rent MI300XEvery current offer by provider, daily price history and a price alert.
- Rent RTX A4000Every current offer by provider, daily price history and a price alert.
- GPU price indexHow on-demand prices for the major GPUs have moved, updated daily.
- All GPUsEvery GPU we track, with current lows and provider counts.