NVIDIA Vera Rubin and Blackwell Set a New Standard for Agentic AI Performance per Watt
Aug 24, 2026, 8:00 AM · NVIDIA Developer

AgentX reframes inference benchmarking around sustained interactive sessions, exposing why fixed-length token tests miss the power and latency problem.
Why it matters
AgentX replays production-style Claude Code sessions with reasoning, tools, growing context and recorded timing. NVIDIA reports up to 30-times higher throughput per megawatt for Vera than GB300 at 160 tokens per second per user, while GB300 is reported at up to 15-times H200 throughput on DeepSeek V4 Pro.
The benchmark combines tokens per megawatt with interactivity, latency and time to first token; the stack includes SGLang, TensorRT-LLM, vLLM, DeepGEMM, Dynamo and NVLink.
From the desk
This is NVIDIA’s own developer post, and it says Vera results await SemiAnalysis review. The methodology is useful, but the comparisons remain vendor-reported.
Signal Desk's read: AgentX is more valuable than its chart. Stateful requests create cache pressure and uneven shapes, so realistic replay is closer to purchasing reality. Yet this is a stack score, not a chip score.
Operators should reject throughput numbers that arrive with unacceptable TTFT or completion latency, especially across many turns.
Context
The post distinguishes generation-only interactivity from end-to-end interactivity. It says fixed 8K/1K tests are now maintenance-mode scenarios.
Who feels it
- AI clouds
- Compare efficiency at a fixed user experience.
- Runtime teams
- Cache routing and disaggregation matter.
- Buyers
- Verify that traffic resembles real agents.
What to watch
- SemiAnalysis review
- AgentX points across concurrency
- Other vendors adopting stateful tests
Companies: NVIDIA