Intel Arc Pro B70 and GeForce RTX 5090 both offer 32GB of dedicated memory, but that capacity tie hides the buying decision: Intel workstation features and a lower published power range versus CUDA maturity and NVIDIA’s flagship consumer path.
What stays equal
The official 26.9GB Qwen2.5-32B Q6_K file leaves a nominal 5.1GB before cache, workspace and other runtime allocations on either card. The 34.8GB Q8_0 file exceeds both. A shared 32GB label does not prove equal compatibility, allocation behavior or speed.
What changes
- B70: verify oneAPI/OpenVINO/SYCL or Vulkan support; consider ECC, workstation features and the 230W Intel-card point within a listed 160–290W range.
- RTX 5090: choose when CUDA support or measured NVIDIA-path performance justifies 575W reference power and the supporting PSU, cable, cooling and chassis plan.
- Either: test identical artifacts, settings, placement and correctness before drawing a value conclusion.
Read the complete B70 versus RTX 5090 comparison for official specifications, fit boundaries, system planning and matched testing.
B70 guide · RTX 5090 guide · 32GB buyer paths · Benchmark builder · Watch the market · Screened offers
Reviewed October 25, 2026. This is a planning comparison, not an independent performance claim.