GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The Radeon PRO W7900 has more VRAM (48GB vs 6GB), making it better suited for large models and memory-intensive workloads. Its memory bandwidth is 350% higher (864 GB/s vs 192 GB/s), translating directly to faster inference throughput.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Arc Pro A40 vs Radeon PRO W7900: In-Depth Breakdown
VRAM: Arc Pro A40 vs Radeon PRO W7900
The Radeon PRO W7900 carries 48GB of VRAM versus 6GB on the Arc Pro A40. 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 42GB advantage here means the Radeon PRO W7900 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 Radeon PRO W7900 delivers 864 GB/s versus 192 GB/s on the Arc Pro A40, a 350% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the Radeon PRO W7900 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 Radeon PRO W7900 delivers 61.3 TFLOPS against 3.7 TFLOPS for the Arc Pro A40 — a 1557% compute advantage. Training runs and heavy matrix operations will complete proportionally faster on the Radeon PRO W7900.
Which should you buy: Arc Pro A40 or Radeon PRO W7900?
The Radeon PRO W7900 is the stronger choice for large-model workloads where VRAM is the bottleneck. The Arc Pro A40 is more economical, and sufficient if your models fit within its 6GB.