Preface: the strongest notebook GPU in history

GeForce RTX 40 series graphics card based on Ada Lovelace architecture and TSMC 4N processWhat impresses us most is not how much performance has improved, but the super-high energy efficiency.

For example, when RTX 4090 was released in October last year, it only required 2 to 3 power consumption, achieving a performance improvement of nearly 70% compared to RTX 3090.

In notebooks, energy efficiency comes first.Today, four months later, RTX 4090 Laptop GPU is here.

This is the first time that the 90-level GPU has entered the notebook field. Whether raster games or light-chasing games and DLSS 3 games, they all have the strongest performance in history, even surpassing the previous generation desktop RTX 3090, and of course far ahead of any previous notebook GPU.

Daring to name 90 also shows NVIDIA's strong confidence in RTX 4090 Laptop.

Daring to name 90 also shows NVIDIA's strong confidence in RTX 4090 Laptop.

In terms of specifications, it has 7 sets of GPC, 9728 stream processors, 304texture units, 3044th generation Tensor Core,76, 3rd generation optical tracking units, 64MB secondary cache, 256Bit display bit width and 16GB memory capacity. These are also the same as the RTX 4080 desktop version.

But after all, it is a notebook GPU, although it uses the same core, there are still some differences.

As can be seen from the above table, the basic frequency of RTX 4090 Laptop is 1425MHz, and the acceleration frequency is 1815MHz. Samsung GDDR6 16Gps, which consumes less power, is used in graphics memory. With 256Bit bit width, the bandwidth of video memory can reach 576GB. The TGP is 175W, much lower than the 320W of RTX 4080 Desktop.

Of course we know.Starting from the RTX 40 series, the TGP of the graphics card is only a power wall, not the real power consumption of the graphics card. In fact, the RTX 4080 only needs more than 200W of power consumption to release its full performance. So how much performance of RTX 4090 Laptop can be achieved with 175W power consumption is what we are curious about!

As the killer of Ada Lovelace architecture, the new DLSS 3 adds optical multi-frame generation technology to the original DLSS super-resolution to generate new frames instead of pixels.

The principle is to analyze the difference between the current frame and the previous frame, and get a new frame through the AI algorithm, that is to say, on the basis of DLSS 2.0, DLSS 3 can directly double the frame rate of the game.

The delay generated by a frame generated out of thin air reduces the picture delay by binding the NVIDIA Reflex.

In order to make the frame insertion more realistic, DLSS 3 also introduces New Optical Flow Accelerator (Optical flow Accelerator), which can accurately calculate the light and shadow of two consecutive frames, as well as the direction and speed of particle flow, so as to achieve a more accurate shadow reconstruction effect by calculating motion vectors and optical flow.

In the absence of an optical flow accelerator, when an object moves fast, it will generate the wrong shadow.

The optical flow accelerator will capture the information such as particles, reflection and illumination in each pixel, and find the matching pixel area in the second frame, calculate the difference between frames, and finally get accurate shadow reconstruction.

Therefore, the frame insertion technology of DLSS 3 is not a frame generated out of thin air. For games that support DLSS 3 technology, you just need to turn it on without a brain to enjoy a high frame rate.

You can expect the RTX 4070 Laptop, which requires only the same 40W power consumption as the RTX 3050 Laptop to achieve the performance level of RTX 3070 Laptop, which consumes 120W.

The increase in energy consumption by three times is astonishing!

P.S. What we received is Raytheon ZERO 2023 sent by NV for testing, which is equipped with i9-13900HX processor, RTX 4090 Laptop GPU, and the performance release capacity of the whole machine is 195W.

The product tested is MSI Titan GT77 game book, which is configured with i9-12900H processor and RTX 3080 Ti Laptop GPU. It is the same as RTX 4090 Laptop GPU with 175W TGP.