I'm a recruiter at a Series D but I went through the NVIDIA interview process myself last fall (exploring options, stayed put). So I can describe the recruiter phone screen from a candidate seat while also knowing exactly what's happening on the other side of the call.
The NVIDIA recruiter phone screen for SWE roles ran about 30 minutes for me. Your mileage may vary by recruiter and role, but this is roughly what to expect:
First 10 minutes: Basic background walk-through. 'Tell me about your current role.' They're checking for communication, coherence, and rough level calibration. No trick questions. If you have a complicated employment history, have a clean 2-minute version ready.
Middle 10 minutes: Motivations. 'Why NVIDIA, why now.' This one mattered more than I expected. NVIDIA is doing exceptionally well right now and they have a lot of candidates. They want to see that you have a specific reason to be there, not just 'it's NVIDIA, obviously.' I tied my answer to the specific team and the AI/accelerated computing roadmap. That landed well. Generic 'great company great products' answers probably get filtered fast.
Last 10 minutes: Basic logistics and screening questions. Visa status if relevant, location flexibility, timeline, what other roles you're considering. They will ask what other companies you're interviewing with. You don't have to name names but being in an active process at other companies is viewed positively.
They did not ask me any technical questions on the recruiter screen. That came later. Some teams apparently do a light technical sanity-check (talking through past projects) but mine was purely conversational.
One thing I noticed: the NVIDIA recruiters I spoke with were well-prepped on the role. They knew what the team was working on and could answer questions about the tech and the team structure. That was a good sign.
Timeline: recruiter call to technical phone screen was about 10 days for me.