GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The RTX 4000 Ada Generation has more VRAM (20GB vs 6GB), making it better suited for large models and memory-intensive workloads.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Quadro RTX 3000 vs RTX 4000 Ada Generation: In-Depth Breakdown
VRAM: Quadro RTX 3000 vs RTX 4000 Ada Generation
The RTX 4000 Ada Generation carries 20GB of VRAM versus 6GB on the Quadro RTX 3000. 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 14GB advantage here means the RTX 4000 Ada Generation 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 RTX 4000 Ada Generation delivers 360 GB/s versus 336 GB/s on the Quadro RTX 3000, a 7% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the RTX 4000 Ada Generation 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 RTX 4000 Ada Generation delivers 26.7 TFLOPS against 5.3 TFLOPS for the Quadro RTX 3000 — a 404% compute advantage. Training runs and heavy matrix operations will complete proportionally faster on the RTX 4000 Ada Generation.
Which should you buy: Quadro RTX 3000 or RTX 4000 Ada Generation?
The RTX 4000 Ada Generation is the stronger choice for large-model workloads where VRAM is the bottleneck. The Quadro RTX 3000 is more economical, and sufficient if your models fit within its 6GB.