The new mobile RTX 5090 has 24GB of GDDR7 VRAM instead of the 16GB of GDDR6 found on the 4090. It’s also got more powerful Tensor cores, slightly more CUDA cores, and an extra hardware video encoder for better livestreaming and video exports, but the same 175W TDP.

Before launch, Nvidia sent me a top-end 2025 Razer Blade 16 to test out its latest flagship laptop GPU. Here's a first look at how this blazing chip handled our testing suite, and how DLSS 4 performs.

With Nvidia's focus on efficiency over raw performance gains there will be pushback, but this is the mobile gaming experience I've been after.