Nvidia RTX Spark laptops launch with Arm chips, but gaming performance lags behind

Nvidia just launched RTX Spark, a new line of Windows laptops built around Arm-based chips instead of the usual Intel or AMD x86 processors. The Grace CPU inside packs up to 20 cores—10 performance, 10 efficiency—paired with a Blackwell GPU sporting up to 6,144 CUDA cores. Systems support up to 128GB of unified LPDDR5X-9400 memory, and Nvidia says performance stays the same whether you're plugged in or running on battery, a claim that would have sounded like science fiction back when your Game Boy ate AAs in three hours.

The big question is whether an Arm chip can handle Windows gaming. RTX Spark relies on Microsoft's Prism emulator to run x86 Windows apps and games, which means you're not running code natively—you're translating it on the fly. That works, but it costs performance.

How It Stacks Up

Reviews paint a mixed picture. Nvidia claims RTX Spark matches the performance of RTX 5070 laptop GPUs, but reports show Apple's M5 Pro beating it in CPU benchmarks like Geekbench and Handbrake, and the MacBook Pro M5 Max ran Assassin's Creed Shadows twice as fast. Gaming performance descriptions vary: some outlets say it's similar to an RTX 5070, others call it closer to a midrange RTX 5060. One review noted games like Horizon Zero Dawn Remastered and Assassin's Creed Shadows couldn't break 30fps, and another said the expense makes it tough to recommend for typical PC gamers.

The specs are impressive on paper, and the battery performance claim is a real win if it holds up in daily use. But if you're shopping for a gaming laptop, the early word says you're paying a premium for something that can't quite keep up with either Apple's silicon or Nvidia's own x86-based RTX laptops.

What It Means

RTX Spark is Nvidia's bet that Arm can work in Windows PCs the way it does in Macs, but the emulation layer and the performance gap suggest the tech isn't all the way there yet. If you need Windows and want the longest battery life possible, this might be worth a look. If you want to game at 60fps or better without compromise, stick with a traditional RTX laptop or wait for the next generation.