Laptop makers are struggling to give accurate specs for their devices.
Tom’s Hardware reported that some laptops with the NVIDIA GeForce RTX 5090 GPU have a Total Graphics Power (TGP) of 160W.
But that’s not true.
What is TGP?
The TGP is the maximum power a GPU can use. It affects performance and heat.
For the GeForce RTX 5090 in laptops, NVIDIA says the maximum TGP is 175W.
This is made up of 150W base power and 25W extra from Dynamic Boost.
Some laptops don’t use the full power of the GPU.
The Razer Blade 16 2025 is an example. It uses the RTX 5090 with a TGP of 135W.
With Dynamic Boost, it gets 25W more, making 160W total.
This setup is good for a thinner design but doesn’t use the GPU’s full power.
This problem is not new
Laptop makers have long had trouble being clear about GPU power specs.
NVIDIA stopped using Max-Q and Max-P labels, which made things confusing.
Different laptops with the same GPU can have big differences in performance.
NVIDIA now requires full disclosure of these specs.
But some makers still don’t communicate well.
For buyers, it’s key to know that a gaming laptop’s performance depends on the GPU model, its power setup, and the device’s heat design.
So, when shopping, check the detailed specs and look for expert reviews that consider these factors.