Specifications Compared
| Spec | MI355X | RTX-5880-ADA |
|---|---|---|
| TDP | 750W | 285W |
| VRAM | 288 GB | 48 GB |
| Memory Type | HBM3e | GDDR6 |
| Architecture | CDNA 4 | Ada Lovelace |
| Form Factors | OAM | PCIe |
| Interconnect | Infinity Fabric | |
| FP8 Performance | 4,600 TFLOPS | |
| FP16 Performance | 2,300 TFLOPS | 69.7 TFLOPS |
| FP32 Performance | 2300 TFLOPS | 69.7 TFLOPS |
| FP64 Performance | 72 TFLOPS | |
| INT8 Performance | 4,600 TOPS | 1,115 TOPS |
| Memory Bandwidth | 8,000 GB/s | 960 GB/s |
Performance Analysis
The MI355X's 2300 TFLOPS FP16 and FP32 performance dwarfs the RTX 5880 Ada's 69.7 TFLOPS: this enables training large language models up to 33 times faster on the MI355X. Equal FP16 and FP32 rates on both GPUs support balanced training and inference pipelines, but the MI355X's FP8 at 4600 TFLOPS accelerates quantized inference further. In real-world terms, the MI355X handles massive datasets without splitting, ideal for billion-parameter models. Memory specs define usability: 288 GB HBM3e versus 48 GB GDDR6 allows the MI355X to process larger batch sizes, reducing training epochs by fitting entire models in VRAM. The 8000 GB/s bandwidth on MI355X, over eight times the RTX 5880 Ada's 960 GB/s, minimizes data transfer bottlenecks during gradient computations. For inference, higher bandwidth sustains higher throughput on MI355X for real-time serving. Power draw reflects this: 750W TDP on MI355X demands robust cooling, while 285W on RTX 5880 Ada enables air-cooled workstations.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
No live offers available at this time.
When to Choose the MI355X
The MI355X excels in datacenter environments requiring extreme scale. Its 288 GB HBM3e VRAM accommodates models exceeding 100 billion parameters without sharding, perfect for LLM training or scientific simulations. With 8000 GB/s bandwidth and 2300 TFLOPS FP16/FP32, it processes large batches efficiently in Infinity Fabric-linked clusters.
When to Choose the RTX 5880 Ada
The RTX 5880 Ada suits workstation-based development and smaller deployments. Its 48 GB GDDR6 VRAM and 69.7 TFLOPS FP16/FP32 handle fine-tuning or inference on models up to 70 billion parameters via PCIe integration. Lower 285W TDP enables easy setup in standard PCs without specialized infrastructure.
Use Cases
MI355X's 288 GB VRAM and 2300 TFLOPS FP16 fit massive models and large batches. RTX 5880 Ada's 48 GB limits scale.
4600 TFLOPS FP8 and 8000 GB/s bandwidth on MI355X deliver high throughput for serving. RTX 5880 Ada suffices only for smaller deployments.
Both offer equal FP16/FP32 ratios; MI355X for large models via 288 GB VRAM, RTX 5880 Ada for 48 GB workstation tasks.
RTX 5880 Ada's PCIe form and 285W TDP fit creative workstations. MI355X's 750W OAM overkill for image generation.
MI355X's 2300 TFLOPS FP32 and Infinity Fabric excel in simulations. RTX 5880 Ada's lower specs constrain complex computations.
Frequently Asked Questions
What is the VRAM difference between MI355X and RTX 5880 Ada?▾
MI355X provides 288 GB HBM3e, six times more than RTX 5880 Ada's 48 GB GDDR6. This allows MI355X to load larger models without partitioning. Bandwidth follows suit at 8000 GB/s versus 960 GB/s.
How do FP16 performances compare?▾
MI355X achieves 2300 TFLOPS FP16, over 33 times the RTX 5880 Ada's 69.7 TFLOPS. This gap accelerates AI training significantly on MI355X. FP32 matches at 2300 TFLOPS versus 69.7 TFLOPS.
Which has lower power consumption?▾
RTX 5880 Ada uses 285W TDP, far below MI355X's 750W. This makes RTX 5880 Ada suitable for standard workstations. MI355X requires datacenter power infrastructure.
What form factors do they support?▾
MI355X uses OAM for server racks with Infinity Fabric. RTX 5880 Ada employs PCIe for desktop integration. Choose based on deployment scale.
Is MI355X better for large-scale AI?▾
Yes, MI355X's 288 GB VRAM and 4600 TFLOPS FP8 dominate for LLMs. RTX 5880 Ada handles prototyping with 48 GB. No live pricing available for either currently.
When was each architecture released?▾
MI355X uses CDNA 4 from 2025; RTX 5880 Ada uses Ada Lovelace from 2024. MI355X targets next-gen datacenters. Both lack current cloud offers.
Which is cheaper to rent, the MI355X or the RTX 5880 Ada?▾
Cloud rental prices for both the MI355X and RTX 5880 Ada 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 MI355X have compared to the RTX 5880 Ada?▾
The MI355X has 288 GB of HBM3e memory. The RTX 5880 Ada has 48 GB of GDDR6 memory.
Can I find MI355X and RTX 5880 Ada 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 MI355X and the RTX 5880 Ada?▾
The MI355X uses the CDNA 4 architecture (2025) while the RTX 5880 Ada uses Ada Lovelace (2024). The MI355X delivers 33.0x the FP16 throughput and 8.3x the memory bandwidth of the RTX 5880 Ada.