GPU Comparison

Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.

Workstation Verdict

The Quadro RTX 8000 has more VRAM (48GB vs 8GB), making it better suited for large models and memory-intensive workloads. Its memory bandwidth is 179% higher (624 GB/s vs 224 GB/s), translating directly to faster inference throughput. The Radeon PRO W5500 is $2,118 USD cheaper than the Quadro RTX 8000.

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Quadro RTX 8000 vs Radeon PRO W5500: In-Depth Breakdown

VRAM: Quadro RTX 8000 vs Radeon PRO W5500

The Quadro RTX 8000 carries 48GB of VRAM versus 8GB on the Radeon PRO W5500. VRAM capacity is the primary constraint for running AI models without quantization — a 70B-parameter model in FP16 requires roughly 140GB, and even smaller models benefit from extra headroom. The 40GB advantage here means the Quadro RTX 8000 can run larger models natively and handle bigger batch sizes in production.

Inference Speed: Memory Bandwidth

Memory bandwidth determines how quickly data is fed to the compute units — it's the main bottleneck for autoregressive inference (token generation in LLMs). The Quadro RTX 8000 delivers 624 GB/s versus 224 GB/s on the Radeon PRO W5500, a 179% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the Quadro RTX 8000 will produce tokens proportionally faster in bandwidth-bound workloads.

AI Training & Compute

For model training, scientific simulation, and rendering, FP32 throughput is the key metric. The Quadro RTX 8000 delivers 14.9 TFLOPS against 5 TFLOPS for the Radeon PRO W5500 — a 198% compute advantage. Training runs and heavy matrix operations will complete proportionally faster on the Quadro RTX 8000.

Price & Value

The Radeon PRO W5500 lists from $190 USD, $2,118 USD less than the Quadro RTX 8000 at $2,308 USD. For budget-constrained teams, the savings may outweigh the spec gap — especially if the smaller card covers your typical workload.

Which should you buy: Quadro RTX 8000 or Radeon PRO W5500?

Choose the Quadro RTX 8000 for maximum capacity — it leads on VRAM, bandwidth, and compute, making it the better fit for large models and training jobs. The Radeon PRO W5500 is the more budget-friendly option ($2,118 USD less) — a solid choice if your models fit within its 8GB and inference volume is moderate.

Frequently Asked Questions

Can the Quadro RTX 8000 or Radeon PRO W5500 run large language models?

Both can, but the Quadro RTX 8000 (48GB) handles larger models without quantization. The Radeon PRO W5500 (8GB) works well for smaller or heavily quantized models.

Which is faster for LLM inference, the Quadro RTX 8000 or the Radeon PRO W5500?

The Quadro RTX 8000 is faster for token generation — its 624 GB/s memory bandwidth vs 224 GB/s on the Radeon PRO W5500 is the primary driver of inference throughput in autoregressive models.

Which is better for AI training?

The Quadro RTX 8000 has the advantage at 14.9 TFLOPS vs 5 TFLOPS, making training runs proportionally faster than on the Radeon PRO W5500.

Technical Specifications Comparison

Architecture & Cores

SpecificationQuadro RTX 8000Radeon PRO W5500
ArchitectureTuringRDNA 1
CUDA Cores (CUDA Cores / Stream Processors)4,608✓1,408

Memory

SpecificationQuadro RTX 8000Radeon PRO W5500
VRAM Capacity48 GB✓8 GB
Memory TypeGDDR6GDDR6
Memory Bus384-bit✓128-bit
Bandwidth624 GB/s✓224 GB/s

Connectivity & Power

SpecificationQuadro RTX 8000Radeon PRO W5500
InterfacePCIe 3.0 x16PCIe 4.0 x8
TDP295 W75 W✓
ReleasedOct 2018Nov 2019

Workstation

SpecificationQuadro RTX 8000Radeon PRO W5500
FP32 (TFLOPS)14.9 TFLOPS✓5 TFLOPS
ECCYesYes
NVLinkYes✓No
Form factordual-slotdual-slot
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